Why does my GMC Sierra suddenly stop running?

Truck suddenly stops running, acting like it’s out of fuel. There is fuel in the gas tank and, I can hear the fuel pump when I turn the ignition on. Is there a fuse, or relay that is maybe causing this to happen?

What to do if your Chevy Silverado loses power?

While generally the Chevy Silverado is a premium, reliable truck, there are times when even the best vehicles can end up having problems. If you’ve ever had your Chevy Silverado or GMC Sierra suddenly lose power, you may be wondering exactly what is going on with your truck.

What causes a GM truck to lose power?

If your GM truck occasionally loses the ability to accelerate and warns you of reduced engine power, that could be caused by a faulty throttle body. While not common, this issue can interfere with your engine function and cause your vehicle to lose power anywhere from once in a while to several times in a day.

Why does my Silverado 1500 engine not start?

Restarting the engine from this state may be difficult. The fuel can vaporise due to being heated by the engine, by the local climate or due to a lower boiling point at high altitude. A vapor lock is more likely to develop when the vehicle is in traffic because the under-hood temperature tends to rise.

How does cylinder deactivation work on a GMC Sierra?

Meanwhile, the gas/air mixture from the last intake stroke is repeatedly compressed and acts as a gas spring, decreasing engine drag (because of the force exerted on the piston by the gas/air mixture).

What happens when a cylinder is shut down?

There is more stuff going on when cylinders are shut down than when all cylinders are in operation. All the components involved in the operation of the deactivated cylinders will be subject to more wear with the constant activation and deactivation. Thus, disabling the DOD would INCREASE the life of the components.

How long does it take for a GMC Sierra to stop stalling?

If you decide to replace it. Your PCM will have to go through the relearn. Another words, it may take up to 5 miles of driving or 15 minuts for the idle to stop fluctuating. Good luck My 2002 with the 8.1 had a similar problem for a year for which the dealer or various independent repair facilities couldn’t find a solution.

Why is my Chevy Silverado 1500 not starting?

However, today, when the truck will crank and start, the antitheft icon goes off after a few seconds with the key on and stays off while the truck is running. It never flashed either today or yesterday though. And I don’t know if the antitheft system disables cranking or starting or both.

Why is my truck not running when I leave work?

Truck wouldn’t stay running when leaving work today. It starts then dies after a couple of seconds. Had it towed to a friends where we pulled out the Chilton book and began troubleshooting.

Is there a shortage of GMC Sierra trucks?

America’s insatiable demand for trucks cannot be stopped, even by a pandemic. Buyers just can’t get enough of the recently redesigned Chevrolet Silverado and GMC Sierra pickups, an issue that already existed before the COVID-19 pandemic hit.

Is the GMC Sierra still out of production?

Now General Motors is rushing to fix that, putting its three mid- and full-size pickup truck factories on three shifts of production starting June 1, reports Automotive News . The GMC Sierra and Chevrolet Silverado started out behind on production this year after the 40-day UAW strike at the end of 2019 brought factories to a halt.

Why does my GM car say no start no crank?

How to diagnose a no start no click on GM vehicle. If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that.

What to do if your crankshaft sensor is not working?

Issues with the crankshaft sensor can quickly lead to problems that affect the drivability of the vehicle. For this reason, if you suspect your crankshaft position sensor has an issue, have the vehicle inspected by a professional technician right away. They will be able to diagnose your car and replace your crankshaft position sensor if necessary.

What to do if your GMC Sierra stall out?

69 people found this helpful. I have a 98 gmc searria 4×4 i checked fuel pressure it was under i changed fuel pump and fuel filter and its still starving for fuel what to do it starts with starting fluid 42 people found this helpful.

What to do if your truck won’t start?

Fuel pump is running it’s little heart out, starter is trying its hardest, but the truck just will not fire up till it damn well feels like it. I’ve already replaced both the cam and crank sensors, new fuel pump and filter as of 3 months ago, and new wires and plugs as of 2 months ago.

Why does my 1999 Cougar engine not restart?

Our 1999 Cougar runs fine but, randomly, after stopping and shutting down won’t restart. After 30 minutes it starts right up. It doesn’t appear to be the fuel pump.

Why does my GMC Silverado shut off before it starts?

Usually if it is bad the truck stays on but won’t start after it gets warmed up so that is probably out of the question. GM’s Passlock/VATS anti-theft system does not let it run for 5-10 seconds; it starts and immediately stalls. It works the same on new and old GMs alike. Sounds like a failing fuel pump to me, even without the stumbling.

What to do when your GMC Sierra stops running?

If you have fuel pressure after the above tests pull a spark plug and check for spark. If you don’t have spark check the cam position sensor in the distributor. If you have spark with no pressure it is the pump.

Can a Chevy Silverado 1500 start and run?

Although I tried to start it multiple times over a couple weeks I gave it one last try after I called the tow truck. It started right up and engine stayed running like it was supposed to. No more problems for almost a year until about a week ago. I did nothin to fix it a year ago.

How long does a GMC Silverado run before it stalls?

GM’s Passlock/VATS anti-theft system does not let it run for 5-10 seconds; it starts and immediately stalls. It works the same on new and old GMs alike.

How to check fuel pressure in a GMC Sierra 1500?

You will have to check the fuel pressure at the rail, the test port is ontop driverside about 3/4 the way back. Black cap on aluminum fuel line. The best thing would be to buy or rent a fuel pressure test gauge as it would thread onto this port. If not I’ve used good safety glasses a rag and a screwdriver to check for pressure.

What kind of starter does a GMC Sierra use?

Drove home, 78 miles worth, ran like a champ, no issues. 5.7; TBI 350; 2WD ;A/T; w/AC. Any suggestions? 38 people found this helpful. What about the starter. You would think, if it was the starter, it wouldn’t start after many attempts. It did and then ran perfectly. Need more solutions 35 people found this helpful. Your starter should be good.

What to do if your GMC Yukon Denali won’t start?

48 people found this helpful. I have a 2000 Gmc Yukon denali, 5.7 litter, it cranks but won’t start it does have spark in coil, but No spark in #1 sparplug I put new distributor and new coil new sparplugs, new plug wires,checked out fuses there all good]

Why is my GMC Sierra 1500 stalling and dying?

There is no code given. Have changed the injectors, timing, fuel tank, fuel pump, fuel pump, map sensor, cooling temp sensor on front of block, rebuilt the tbi, air idea valve. None of this hasite helped. The truck starts and dies. Have to give a little gas to keep running. While driving have to 2 foot it so it won’t die.

What does a GMC Sierra 1500 idle like?

Today experienced a poping sound almost like a backfire from underneath. After the truck starts and is warm at a stable idle in park/neutral it’ll rev up fine. But the stable idle won’t last long, it’ll idle low and rough. Mpg has decreased drastically and give off a rich smell when running.

What does the fuel smell like in a GMC Sierra 1500?

If so pull the air filter off and sniff the throttle body for a fuel smell. If the diaphragm has ruptured it will literally be like putting a hose with fuel into the intake and running it full.

What’s the problem with my 1997 Chevy Silverado?

I have a 1997 chevy 1500 siverado with a 5.7 vortec that has been having a problem for about 6 months now. The truck starts, idles, and revs normally and when accellarating slowly everything works just fine, but once you get past half throttle it falls on its face and acts like it has a clogged fuel filter or bad fuel pump.

What causes a 7.3 power stroke engine to not start?

7.3 Power Stroke Diesel Common Problem #1 : Causes No Start : Injection Pressure Regulator (IPR) Valve, located in the valley on the High Pressure Oil Pump (HPOP). These can stick, seals get damaged, have the sensor go bad or the wires get damaged.

Can a GMC Sierra run without a fuel pump?

Without gas your Sierra will not run at all. With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all. In modern fuel injected vehicles, the fuel pump sits right in the fuel tank and “pushes” the gasoline to the fuel rail (s).

Why is my fuel tank collapsing on my GMC Sierra?

I’m also having this problem with my 2000 GMC Sierra SL c2500 5.7. It creates a vacuum and collapses the fuel tank. Im on my third fuel tank but didn’t realize at first a vacuum was crushing it. Any ideas? It seems the more I read, the more possibilities that could cause it but its getting expensive with the tanks and pumps.

What are the lines on a 97 Vortec?

There are three lines to the tank. 3/8, 5/16, and 1/4 inch. 3/8 is the supply line. Fuel is pumped through this line from the tank to the fuel metering body. (No TBI on a 97 Vortec). The 5/16 returns excess fuel from the metering body back to the tank. The 1/4 line is the vent line.

Why does my GMC S15 Jimmy not move?

My neighbor owns a ’93 GMC S15 Jimmy 4×4. When he puts it in gear, the truck doesn’t want to move. Then he switched it to 4×4 and it still doesn’t move. I’d imagine that it could be the transmission, … read more

Why does my Silverado 1500 not go into gear?

Won’t go into gear. No I haven’t where is the brake switch put it in neutral and reverse. It was in the way so I used another truck to push it out of the way. The back wheel drug like something was holding it … read more I have a 2008 Chevy Silverado 1500. The issue is the truck I have a 2008 Chevy Silverado 1500.

Can a truck start but won’t go into gear?

Truck starts but you put it in gear and it won’t move! Won’t go into gear. No I haven’t where is the brake switch put it in neutral and reverse. It was in the way so I used another truck to push it out of the way. The back wheel drug like something was holding it … read more I have a 2008 Chevy Silverado 1500. The issue is the truck

Why does my 1997 Chevy Suburban not start?

1997 1500 pickup at low throttle engine is missing to the point were I had it full throttle and no power and engine died. Still won’t start … read more Vocational, Technical or Tra… i have a 1998 chevy suburban. It was running fine when parked, but 3 days later will not start. It cranks fine, but sounds as though it wants … read more

Why does my 1997 Chevy c1500 not start?

1997 Chevy C1500, 2WD, 5.7L won’t start – cranks fine. No codes – good fuel pressure ( 60+ psi – new pump), good spark, 1997 Chevy C1500, 2WD, 5.7L wont start – cranks fine. No… It will not start. I changed the fuel filter and fuel pump It will not start. I changed the fuel filter and fuel pump relay.

What happens when a GM Truck starts then dies?

It starts then dies immediately. Parts replaced so far: fuel pump, fuel filter, spider injectors, fuel regulator, oil pressure switch, ignition switch, ignition module, passlock, fuel pump relay, spark plugs, wires, distributor cap, rotor and ignition coil. Crank sensor is getting power and 50 psi with key in the on position (not running).

What causes a car to stall after filling up with gas?

Repeated impact from uncontrolled combustion, can damage the engine. Gas contaminated with water, other liquids and dirt; can cause a car to misfire, sputter and stall. So, if the stalling started to occur shortly after your last fill-up, suspect bad gas.

What makes a car stall when the gas tank is half full?

The car stalls out when the fuel tank becomes half empty and yes, gets worse as more fuel is consumed. Slowing down doesn’t seem to cause a problem but coming to a hard stoop at the bottom of a hill will make it stall after braking.

Why does my car stall when I come to a stop?

When gas tank gauge is half full and I come to a hard stop and sometimes when moving, my car stalls, acts as though it was out of gas. I had a fuel tank sending unit replaced and it still does it.

What causes a GM torque converter to lock up?

Most of the time it is a stuck Torque Converter Clutch (TCC) solenoid, but this is not the only cause of this problem. General Motors has issued a few Technical Service Bulletins (TSBs) relating to this problem. There is also a specific diagnostic procedure to determine the exact cause of the TCC problem.

Is the fuel pump relay controlled by the PCM?

Consequently, the fuel pump relay is usually controlled by, the ignition or powertrain control module (PCM). As a result, when switched on, the fuel pump relay; will provide current to the fuel pump, so that it may function. Therefore, any faults with it, can cause fuel pump issues.

How does a GMC Sierra 1500 fuel pump work?

The older model has steel lines coming off of the top of the pump to the frame rail and then connects to the frame steel lines with short hoses, you’ll need line wrenches and the ability to curse. The newer style has plastic tubes from the plastic pump casing and uses those quick connect fuel fittings and you’ll need the disconnect tool.

Why does my Chevy k1500 stall when gas is released?

I have been working on our 89 Chevy K1500 and am still having an idle issue. The truck idle drops and lopes and occasionally completely stalls. This usually happens when driving slow in town… backing out of parking space, letting off gas when coming to a stop sign or to park etc. It does fine to start and accelerate.

What causes a truck to stall when gas is released?

The truck idle drops and lopes and occasionally completely stalls. This usually happens when driving slow in town… backing out of parking space, letting off gas when coming to a stop sign or to park etc. It does fine to start and accelerate. I have done a tune up including oil and filter, fuel filter, spark plugs, wires, cap and rotor.

What causes a 1995 Chevy Tahoe to stall?

I have a 1995 Tahoe. Most of the time when I turn the lights on, hit the brake pedal, shift into reverse the engine stalls. The engine starts right back up and idles fine the truck runs great but stalls when the brake pedal is pushed or the lights are turn on. Any suggestions?

When does a fuel pump leak in a classic car?

When the internal diaphragm leaks, fuel escapes through the weep hole to notify the vehicle owner of a malfunction. This is one of the more common fuel pump problems found in classic cars that are between 30 and 60 years old.

Where does the clicking come from on a GM Truck?

The clicking starts when I crank the truck up and last about 15-20 seconds.I hear the same clicking when I turn the truck off and it lasts about the same time.Like I said it is coming from behind the glove box above the heater core.The heater core has not shown me signs of it being bad,no leaking,and no foggy windows.

Why does my Chevy Truck start and idle?

Not sure why this test caused a better and longer gas flow than the above test of just putting the ignition in the ON position and seeing how much gas comes out of the line before the fuel filter. Last test says to start the vehicle and remove the relay.

What kind of truck starts and then dies?

Forgot to mention this is a 1995 K1500 5.7 with TBI. When it first start if you give it some gas dose it stay runing?? My 2001 suburban did this it would start and die.

How to troubleshoot a no start GM 4.3L?

The following tutorial may be of help: How To Troubleshoot A No Start (GM 4.3L, 5.0L, 5.7L). CASE 3: The engine started and stayed running. This confirms that the fuel pump is starting to fail. The next step is to confirm the exact fuel pressure with a fuel pressure gauge to be absolutely sure.

How long has my Silverado Sierra been running?

We have had it for about 9 mos and put about 7k on it. Last week it started randomly stalling/dying, most times starting right back up. Then it died on my son and wouldn’t start. NO engines popping up. When I got to it I tried to go through the basics of troubleshooting- Turned on key to listen for fuel pump, pump came on.

Why is my Silverado Sierra engine popping up?

NO engines popping up. When I got to it I tried to go through the basics of troubleshooting- Turned on key to listen for fuel pump, pump came on. Pulled spark plug to check for spark which it had however plugs were bad and the spark was orange instead of blue.

What kind of truck is a 2000 GMC Sierra?

The 2000 GMC Sierra 1500 is a well-equipped full-size pickup truck available as a two-door regular cab or a four-door extended cab.

Where was the 2000 GMC Sierra 1500 last serviced?

1st owner drove an estimated 11,834 miles/year • 2nd owner drove an estimated 5,447 miles/year • 3rd owner drove an estimated 0 miles/year • 4th owner drove an estimated 0 miles/year. Last serviced at 107,068 miles in Martinez, GA on 10/30/16 • Vehicle serviced. Mileage: 137,000 miles Body Type: Pickup Color: Gold Engine: 8 Cyl 5.3 L

When did I Buy my GMC Sierra 1500?

We’re sorry, our experts haven’t reviewed this car yet. Check back with us soon. Showing 3 of 1,619 reviews. We are a busy plumbing company based in So.California. We purchased this truck with utility body in 2004 as a back up truck to our other trucks and vans.

How old is the 1995 GMC 1500 truck?

I got the truck from my 89 yr old father in-law at 96,000 miles. It’s got dents but no highway miles. All farm use. It runs great and has never had any issues.

Are there any changes to the GMC Sierra 1500?

New distributor comes with new ESC electronic unit, pickup coil, cap & rotor, also. No change. Next, read somewhere that the fuel pressure regulator diaphram if split could cause flooding. rebuilt throttle body unit, rebushed it and boiled it out and added rebuild kit and brand new Borg Warner injectors.

Is the GMC Sierra a good pickup truck?

Cb and antenna. New plugs, wires, top radiator hose, water pump, distributor, air filter, alternator, tires, brakes. Comfy Interior, they last forever! The 1995 GMC Sierra is a very good pickup! The only thing that gets to them is the rust.

Why does my GMC Yukon engine shut off without warning?

When exiting highway coming up to a stop sign or stop light or just braking, the engine shuts off with no warning or sputtering, while still rolling with no warning. This usually happens when pulling a trailer. No power brakes or power steering.

What happens when the engine shut off without warning?

Car engine shut off with no warning, I started the car, drove about 50 yards to a stop sign, stopped, started to pull away and the engine completely died. No warning lights. I was halfway into the street. I put the car into park and was able to start it again.

What should you do if your car stops running?

If your fuel gauge shows you have sufficient fuel and your car still stops running, you should go get it checked by a mechanic. An alternator is responsible for managing the supply of electricity in your vehicle. If your car suddenly stops running, it is possible that the alternator has gone bad.

What causes a car to start but not keep running?

The engine requires the right amount of air and fuel to mix together for ignition. If there is a fuel leak somewhere, then the correct amount of fuel may not make it to the combustion chamber. This might be enough to allow the engine to start, but not keep running.

Why did my Chevy Silverado engine shut off without warning?

Warning lights came on for steering assist while driving down the highway. At this time, the air conditioning and radio turned off, but the engine remained running. Dismissing the alert returned the a/c and radio, and the truck continued running.

Why did my truck engine shut off going down the road?

That was because the top started to rust out, not from failure. When it went in my 98, I was out hunting and it died driving down the road. Replacing it on the truck wasn’t bad, I didn’t even attempt it on the Yukon. Try crawling under the truck and whack the fuel tank with a rubber mallet while someone tries to start it. Click to expand…

Why does my GM Truck start and die?

Starts and runs fine and then all of the sudden. Yesterday morning it starts and dies after about 1 second, started it again and same results. It does this several times. After about 30 mins of trying and talking to it a while it started and ran fine. Drove over to the garage turned it off and restarted several times and it was fine.

How to fix a GMC Sierra engine cutting out?

3. Connect one ohmmeter lead to power supply terminal of switch side of 48-pin connector. Connect other ohmmeter lead to appropriate terminal of 48-pin connector according to selected switch position. If continuity does not exist for selected switch position, problem is open in that circuit between 48-pin connector and switch, or faulty switch.

What is the 48 pin connector on a GMC Sierra?

Connect other ohmmeter lead to appropriate terminal of 48-pin connector according to selected switch position. If continuity does not exist for selected switch position, problem is open in that circuit between 48-pin connector and switch, or faulty switch. Fig. 1: Identifying 48-Pin Connector Terminals (All Models) Courtesy of GENERAL MOTORS CORP.

Why does my GMC Sierra stall at 30 mph?

Never threw a service engine light or a code and would readily re start. 2 weeks ago it quit at 30 mph, wouldn’t restart and SES lit up. Code indicated crank positioning sensor. Had it replaced and so far so good. If yours behaves as mine did it could be a while before you get a traceable code. I own a 1998 GM Sierra 5.7L 2wd automatic.

Why does my GM Truck shut down while driving?

At a dead stop. It would crank over, but not start. Ran the battery dead trying to crank it. My dad came to help, charged the battery, and it started right up. It sounds wierd but this is what its doing.

What was the problem with my GMC Sierra?

August 2007, Brought truck into dealership and they figured it was a weak fuel pump and was replaced, September 2007 stalling of engine continued. NOV. 2007 dealership replaced ignition harness, and stalling continued. Dec. 2007 I replaced the battery and did a thourough cleaning of the battery terminals.

When was the ignition harness replaced on my Chevy Silverado?

NOV. 2007 dealership replaced ignition harness, and stalling continued. Dec. 2007 I replaced the battery and did a thourough cleaning of the battery terminals. Stalling continues and now more often when idling, warm or cold.

When did the GMC Sierra truck come out?

The GMC Sierra is the fifth-most popular truck in the United States, with more than 230,000 trucks sold in 2019. General Motors introduced the GMC Sierra and its twin, the Chevrolet Silverado, in 1998.

When did the GMC Sierra have the most problems?

The model years with the most problems reported were 2004 and 2007, with more than 60 complaints each year, followed by 2002, 2003, 2005, and 2010, with more than 40 each year. Of the 112 problems, five different complaints have been reported 90 or more times.

Why did my Silverado engine die after 9 months?

Turns out that the wiring harness to the ECM had fallen down onto the motor, melted the loom, and shorted the ECM out occassionally. It only took 9 months to figure this out, but it did the trick. It was extremely frustrating as it would run like a champ one day, and die the next.

Can you feel the gears on a GMC Sierra?

When you move the shifter can you feel the regular amount of resistance, can you feel the gears. If not the cable is broken or disconnected from the tranny. 94 people found this helpful. If the cable is good we need to check line flow/pressure.

Where is the vacuum line on a GMC Truck?

The year range is pretty non specific. If the truck has a vacuum hose to the transmission (to the vacuum modulator), the line will be a metal tube attached to the large tube that the transmission dipstick is in. It will come up and connect to a hose that will run to the base of the carburetor. The function of this line and…

Is there a vacuum modulator in a GMC Truck?

If the truck is new enough, the transmission will be electronic and not have a vacuum modulator at all, and will have a plug with several wires connected to it on the drivers side.

How to tell if your car needs a new timing belt?

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Why does my GM 4.3L engine not start?

No Start Condition Basics There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start, it’s because one of these components is missing from the mix.

Why does my Chevy c1500 hesitate to start?

If it ALWAYS struggles when it starts or ALWAYS hesitates on acceleration then I would say the issue is fuel delivery. If the problems are more intermittent and come-and-go then it could be an electrical issue. I would start by changing the fuel filter.

When does the Chevy Silverado 1500 shut down?

See all problems of the 2009 Chevrolet Silverado 1500 . While slowing down to make a turn, usually always using turn signal, my truck will completely shut down in the middle of the intersection with no warning. The engine shuts down and all electrical is lost.

Can a Chevy Silverado 1500 lose all power?

See all problems of the 2019 Chevrolet Silverado 1500 . Truck will lose all power, everything will shut off, and then come right back on. It has happened while accelerating into traffic, slowing down turning right and turning left, and while moving straight ahead.

What causes a Chevy 350 to backfire when idle?

If a main vacuum hose such as the power brake booster feed line has broken or failing off it will cause a lean backfire due to the additional air allowed into the engine intake manifold. This problem will be accompanied by high or low engine idle and a harder to push brake pedal than normal.

What causes an engine to stall at idle?

If the ISC valve is gummed up with fuel varnish or dirt, it may stick, preventing the engine from maintaining the proper idle speed when the throttle closes. A faulty idle speed control circuit may also allow the engine to stall when idling if it fails to compensate for idle loads placed on the engine by the charging system or A/C compressor.

Why is my idle control not working on my car?

If the idle has not changed at all, it’s likely because your idle control motor has not been functioning. If the idle control motor was working, disconnecting it should have created a difference in the engine’s idle. This test confirms there’s an issue with the idle control motor, but not what the issue may be.

Why does my GMC Sierra 1500 run rough at idle?

The spray smoothing out the rough rpm is an indication of the engine running lean, could be low fuel pressure, could be a vacuum leak. With it running rough at an idle and smoothing out at a higher rpm is a general sign of a vacuum leak.

Why is idle speed not coming back up?

If the ISC system is working correctly, the PCM should adjust idle speed to keep the engine from lugging down when the A/C compressor engages. If idle speed drops down and does not come back up, the ISC system is not responding the way it should.

What causes rough engine idle or TDC code?

So, should the engine misfire, rough engine idle or (TDC) code; point to an air leak in the intake manifold gasket, following the below directions. A very common cause of a leaking intake manifold is the gaskets and bolts used from the factory.

I have a 98 gmc searria 4×4 i checked fuel pressure it was under i changed fuel pump and fuel filter and its still starving for fuel what to do it starts with starting fluid 42 people found this helpful.

What does rough idle mean on a GMC Sierra?

rough idle, stalling, loss of power. o2 sensor code 44 (lean) Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. It will run normal on occasion but only lasts about 45 seconds or so.

What happens when the diaphragm is ruptured on a GMC Sierra?

If the diaphragm has ruptured it will literally be like putting a hose with fuel into the intake and running it full. When it initially started to go it probably slowly flooded the engine to where it seemed to run ok but the excess fuel created a ton of carbon coating the O2 sensor. Since no air could pass through it, it gave a false lean reading.

What’s the problem with my 91 Chevy 1500?

BEFORE I DID THAT THE MOTOR WOULD DIE OUT AS SOON AS I WOULD PUT IT IN GEAR BUT NOW IT WILL RUN IN GEAR FOR ABOUT 15 SECONDS BEFORE DYING OU T.I LOOKED FOR A VACUUM LEAK BUT FOUND NOTHING. ALSO WHAT IS THE RUNNING PARAMETERS FOR THE IAC,HOW MUCH STEPS AT IDLE AND HOW MUCH VARIATIONS.

When to turn off the engine in a Malibu?

During that period the idle may be higher idle than normal. 2) After 3 minutes, turn the engine off and leave it off for 60- seconds. 3) Start the engine again and let it idle in park for 3 minutes one more time. During these run periods you may see a check engine light.

Why does my Chevy 1500 die after idle time?

WHEN YOU LET THE MOTOR WARM UP IT WILL JUST DIE OUT AFTER ABOUT 5 MINUTES IDLE TIME BUT WILL START RIGHT BACK UP THEN DIE AGAIN MAYBE 2 MINUTES LATER. IF I PUT IT RIGHT IN DRIVE AND GO IT WILL RUN FIND UNTIL I HAVE TO STOP THEN IT WILL DIE OUT AGAIN.

Why does my truck not start after sitting for a long time?

This can happen when the check valve in the fuel pump assembly leaks pressure back into the fuel tank. The longer the truck sits the harder it is to start. Try this, turn the key on for 2 seconds then off, do this two more times then try and start it.

Why does my fuel pump not start after sitting?

When the key is turned on the fuel pump only gets 2 seconds of power, so if the line pressure is at zero there isn’t enough run time to pressurize the fuel system. Cycling the key a few times forces the pump to run for 6 seconds instead of just 2 and this will pressurize the system and allow for a quick start

How old was my Chevy truck when it died?

Had it towed to a friends where we pulled out the Chilton book and began troubleshooting. First thing we replaced was the fuel filter. It was 9 years old and when we blew into it there was a lot of restriction. After that we ran through the tests under Fuel Pump.

What makes a 1988 Chevy 5.7 TBI run rough?

1988 Chevy 5.7 tbi runs rough cold and…. Ok here is the deal. This truck has a good motor but it lacks power all the time not like barely moves but it won’t burn rubber. Now when its cold it runs really rough coughing and sputtering.

Why is my GMC Sierra losing power steering?

In some cases all electrical blinks and it continues to drive while temporarily losing power steering and other features and other times turning off completely until coming to a stop. The dealership wants ~$400 to do diagnostics on a g218 bolt that they were told by GMC that it is related to. This issue came from the factory this way.

What happens when you put a GMC Sierra in reverse?

GMC should compensate owners until fixed. Display screen to bright when vehicle is in reverse. When putting vehicle in reverse the backup camera display is so bright you can not see your exterior mirrors or out any of the windows to see surrounding area.

What kind of car shut off last night?

Last night I was on I-95 south bound doing about 65mph in my 2002 Chevy 1500 4×4 4.8L and the engine shut off. I costed into the break down lane and shut the key off and tried to start it again and it will turn over but not start.

Why does my car not start when I Turn on the gas?

With the key in the on position the orange information center thing will flash and go through every thing it says. When I turn on I can’t hear the fuel pump. I’m not sure if it’s just the fuel pump or if there is a bigger problem. Any input is much appreciated. Did you run out of gas? Spray brake clean into the intake and see if it starts.

What happens when the distributor rotor and cap fail?

Excessive or unusual engine noises Your vehicle may make some very strange noises if the distributor rotor and cap are malfunctioning – specifically because the cylinders will try to fire but fail. You might hear a tapping, clicking, or sputtering sound when the distributor rotor and cap are failing.

Why is my GMC Sierra 1500 stalling out?

No change. Next, read somewhere that bad ground wire on Thermostat housing can cause ECM issues. Checked it, cleaned it off, verfied that contact wanhers are all steel and attract a magnet, reinstall the ground wire.

What causes a 1989 Chev crew cab to stall?

I have a 1989 v3500 chev crew cab with a 454. Started stumbling at low throttle, stalling when I came to a stop or any low rpm activity. Checked for vaccuum leaks, reset base idle, tested sensor components, ran Win aldl diagnostics, could not get it to run right.

What to do if your Yukon Denali stops running?

I have a 1999 Yukon Denali, stopped running going down the road, acted like it ran out of gas. Added gas, didn’t help. Changed the Crank Position Sensor, didn’t help. Changed the Spark Plugs, didn’t help. No spark at the plugs, no spark out of the coil, changed the coil, didn’t help.

When to turn off the malfunction indicator light?

The DTC will give information about the detected issue. The OBD2 system can turn the MIL off automatically if the conditions for the problem stop to exist. After evaluating a system or component for three consecutive times without detecting the problem, the light can be turned off. But, usually the light remains on. What are the next steps?

When does the OBD2 indicator light turn on?

The OBD2 system illuminates the light when there is a problem with the car’s engine, transmission or emission control system. The light turns on only for a reason and you should not ignore it. You should always investigate the cause.

Is there check engine light for intermittent stalling?

Many times, there will be no check engine light and no fault codes to give you a clue as to what might be causing the engine to stall. So the trick to diagnosing an intermittent stalling problem is to catch the vehicle when it’s acting up — and that rarely happens when you have the vehicle in your shop.

When did my GMC Sierra air conditioner stop working?

I had a 2001 GMC Sierra that did this when truck was less the one year old (summer of 2001 is when it was). The dealer had the truck in the shop idling for a long time and the A/C worked perfectly. I told them to take it for a ride and see. So the service manager in an effort to convince me nothing was wrong went for a ride with me driving.

What does intermittent no start mean on a car?

Share it! An intermittent no-start condition references any time where starting is possible sometimes, and other times the engine will not start. This implies that the difference between starting and failure to start is not understood.

What makes the warning chime at intermittent times while driving?

The temperate gauge indicates overheating in stop/go traffic and has stalled a few times when idle. Oil is low could this be it? The first thing to do is to make sure the oil and coolant are filled up to prevent any engine damage. The problem may be caused by low oil but only if engine is oreal low on oil. The coolant…

Why does my truck sputter and backfire when I accelerate?

Hey I’m new here and desperate for answers! I’m in the middle of PCSing with the Air Force to Japan and was getting my truck ready to sell, when it started acting up when I accelerated after right after starting the engine. een The engine starts and runs fine, when I leave for or from work.

What does it mean when your car is sputtering and popping?

Here we go again. acceleration Sputtering and popping was the first indication of trouble with mine (see: Another one not running ). I’d be cruising on the highway and step on it and it would cough and sputter and then clear up. Made me think of carbon’ed up plugs and I dismissed it at that.

What to do if your car engine is sputtering?

The seals and gaskets prevent exhaust gases and oil from finding their way to the combustion chambers. When these fail, you will start experiencing a sputtering engine. Further seal damage will eventually lead to the complete destruction of the exhaust manifold. The solution to this is to simply replace the seals and gasket if you find any leaks.

If so pull the air filter off and sniff the throttle body for a fuel smell. If the diaphragm has ruptured it will literally be like putting a hose with fuel into the intake and running it full.

Why does the crankshaft position sensor stop working?

There are several failure crankshaft position sensor symptoms that you should pay attention to. Many engine models stop functioning if this component fails to send accurate signals. The speed and position of the crankshaft are two key parameters that the car’s computer uses for engine management calculations.

How to troubleshoot a GM fuel pump relay?

The following tutorial may be of help: Troubleshooting The Fuel Pump (GM 4.3L, 5.0L, 5.7L) (at: troubleshootmyvehicle.com ). The following links will help you comparison shop for the fuel pump relay:

How to check no fuel condition on GM 4.3L?

I’ve also included how to check a no fuel condition with starting fluid (although this is not the most effective way to test the fuel pump). It’s been my experience that misdiagnosing a bad fuel pump is a common occurrence on the 4.3L, 5.0L, 5.7L GM vehicles with the ‘Spider’ fuel injector assembly.

How to order Sierra marine engine and drive?

Thousands of engine and drive parts for all major marine engines and drives. Flip pages & zoom in — click part numbers to order. Save for offline viewing — click part numbers to order. Flip pages & zoom in — click part numbers to order. Save for offline viewing — click part numbers to order.

Where to get the best GMC Sierra parts?

If you are looking for GMC Sierra parts that will keep it running properly mile after mile, CARiD is the place where you’ll find them. The highest quality, long-term efficiency and reasonable prices – at CARiD you will get all this and even more.

Can a 88-98 motor mount be moved forward?

The 88-98 motor mounts your talking about won’t work because GM changed the crossmember & frame provisions on 00+ for the LS based engines. The 00+ 4.3L motormounts are unique to the beast. After measuring the motormount plate, by swaping left & right it would only move the motor mounts exactly 1″ forward.

Where are the motor mounts on a GMC 350?

The 4.3L and 350’s use the same 3 bolt motor mount pattern on the block, just in different locations on the block. The 88-98 motor mounts your talking about won’t work because GM changed the crossmember & frame provisions on 00+ for the LS based engines. The 00+ 4.3L motormounts are unique to the beast.

How big are the motor mounts on a GMC Truck?

The 00+ 4.3L motormounts are unique to the beast. After measuring the motormount plate, by swaping left & right it would only move the motor mounts exactly 1″ forward. I just measured a 350 and 4.3L block to see how far off the motor mount provisions are.

How much does a GMC Sierra engine hesitate during acceleration?

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM. Our certified mobile mechanics can come to you now. GMC Sierra 1500 HD Engine hesitates during acceleration Inspection costs $89 on average.

Is there a test on a 1995 Chevy 1500?

The 1995 Chevrolet 1500 has not been tested. Like what you see? Find the best deal on a Chevrolet 1500 today. There are for sale near you. Certified child passenger safety technicians conduct hands-on tests of a car’s Latch system and check the vehicle’s ability to accommodate different types of car seats.

How to troubleshoot a no start GM 4.3L pick up?

Testing a Cranks but Does Not Start condition on your GM 4.3L, 5.0L, 5.7L pick up, van or SUV is not that hard to do, if you have a solid diagnostic strategy. In this article I’ll show you the basics of testing such a problem.

When did I get my GMC 1500 truck?

Had the truck since 1994, 5.7 auto red stepside. Been a very good truck, handles like a car, short wheelbase. Going to miss it when I sell it. Will be a classic truck one day.

What to do when your GMC Sierra won’t start?

If the Sierra does not start after replacing or charging the battery, move to the next step. Turn the headlights on and then turn the ignition key to the “On” position. If the headlights dim, the ignition switch sends electricity to the starter motor and solenoid. If the headlights do not dim, the ignition switch is defective. Locate the starter.

Why does my Silverado Sierra feel like its missing something?

Most quality Scan tools will read misfire counters on newer GM products. Need to pin point what cyl is misfiring if at all. Another quick check since its at freeway cruise speed is to drag your foot on the brake just enough to unlock the torque converter. If the miss felling goes away it could be the torque conveter locking and unlocking.

How does the ignition switch work on a GM car?

The ignition switch now talks to the body control module (BCM) and it’s the BCM that initiates one of two relays. The second relay, the more important of the two, is controlled by the powertrain control module (PCM). And it only operates the starter relay after it’s satisfied that the correct key is in the ignition.

What happens to your car when the ignition coils fail?

When less power is reaching the spark plugs, your vehicle will struggle and use more fuel to compensate for the lack of power transfer. Trying to start your vehicle when the ignition coils fail will result in a rough ride. Your vehicle will cough and splutter regularly. When you drive at high speeds, your vehicle will jerk and spit.

Why do I need to replace ignition coil on Oldsmobile Bravada?

It could be a bad ignition coil. There are a few extra steps to replace the OEM coil on these GM 4.3L Vortec engines. Join along as we get it done on the Oldsmobile Bravada. Subscribe for more crazy randomness and follow us on Instagram for updates, unreleased content, and sneak previews of upcoming videos! https://www.instagram.com/chaosgarage…

What to do when your GMC Truck won’t shut off?

Might have a system that keeps running until oil cools to a certain temp to keep from blowing the turbo? Should shut off when tapping the brake when key is removed though. Click to expand… Start by disconnecting the aftermarket alarm and see if it still happens. And next time just pull the fuel pump relay it’s easier.

How to clear the service engine soon on a GMC Truck?

How to Clear the Service Engine Soon on a 2002 GMC Truck. 1 Step 1. Locate the diagnostic connector port on the driver’s side of the vehicle. It is located on the underside of the dashboard, between the center 2 Step 2. 3 Step 3.

What kind of truck won’t shut off?

Truck won’t shut off? I have an “02” Silverado that won’t shut off with the key. The key works like normal but engine keeps running, Anybody have any ideas?

What to do if your GMC Truck wont start?

No relearn is necessary. In this situation, the vehicle will start and run with no problem. If the vehicle won’t start, check your scan tool for a VTD (Vehicle Theft Deterrent) Fail-Enable Mode trouble code, or if the security light on the dash is illuminated.

Is the push button start a GM feature?

As of this writing, the feature is standard on 2019 model year and newer Chevrolet, Buick, GMC and Cadillac models with keyless ignition, also known as push-button start.

When does GM extended parking feature shut off engine?

The GM Extended Parking feature automatically shuts off the engine when the vehicle is parked for 20 minutes without the key fob present, or after an hour when the key fob is present.

Why did my Yukon engine shut off going down the road?

The wife’s Yukon had one last year. That was because the top started to rust out, not from failure. When it went in my 98, I was out hunting and it died driving down the road. Replacing it on the truck wasn’t bad, I didn’t even attempt it on the Yukon.

How often does the GMC Sierra come out?

Their four generations have appeared every five to seven years: 1999 to 2007, 2007 to 2014, 2014 to 2019, and 2019 to the present. Here’s a look at some of the most common problems the GMC Sierra has had over the years.

When does the wiper motor turn on in a truck?

Very difficult to trouble shoot. It used to be you could tap the wiring harness that plugs into the side of the wiper motor and it’d start back up. Now they only turn on if the temperature is below 20 degrees, and once the truck warms up–they will quit.

What does it mean when your windshield wipers wont turn off?

A failed relay can mean the wipers won’t work at all, or they may continue to work even when turned off. Changing the wiper relay is the easiest approach and it might solve your problem. Wiper relays usually cost less than $20.

Where is the relay on a windshield wiper?

Faulty Relay: Every windshield wiper system has an internal electric switch mechanism called a relay. Automotive relays are small plastic boxes that plug into a particular location in a covered panel underneath the hood near a handful of other relays.

Why does my GMC Sierra k1500 not move?

1995 GMC Sierra k1500, 350, 5.7 Automatic : Take it out of park, into drive or reverse, step on gas, rpm’s fly, but won’t move an inch. Have not driven in a week or so, had to replace radiator because of leak, replaced radiator yesterday and it works fine.but now get no movement at all when out of park.

What to do if your CarGurus wont move?

No flow, no go. If you did plug them it might be a good idea to disconnect both ends of each tube and blow them out with air, ensure no forgein material gets blow into the tranny. Blow out the new rad and ensure there is communication between the two ports you are connected to?

Is there a forum for GMC Sierra trucks?

All truck related forums are within this category. These forums specifically and directly relate to Chevrolet Silverado and GMC Sierra trucks. Off topic discussion is not permitted here. Practical advice on a particular subject that gives advice or instruction on a truck maintenance or service.

What to do if your GMC Sierra won’t start?

Let sit for awhile, turn key, won’t start, turn key off, turn key again, starts up and runs great. A week later, same issue. I went to work everything great, went to go home, wouldn’t start. Tried to turn key a few times, won’t start, let sit about 15 min., turned key, started up. Stop to get gas 15 min. later, wouldn’t start. Stranded for 2 hours.

How to win a Silverado Sierra truck of the month?

A fun monthly contest where members can enter by posting pictures of their truck and everyone gets the chance to vote on their choice for truck of the month. This forum is designed for members to post a timeline of events for their “truck build”.

Where does the GMC Sierra 1500 AT4 go?

This quadrennial event challenges teams to drive through Canada, Alaska and into the Arctic Circle. With temperatures well below freezing, see how these three used their Sierra 1500 AT4 to witness beautiful backdrops and experience some of the most isolated regions of North America.

Why is my return line cracking on my GMC Sierra 1500?

So you cracked on the return line. It should naturally drain. If the flow/pressure increased when the truck started that means that you are sucking fluid from the pan therefore the pump is working. That means that the problem is most likely in the valve body.

What should I do with my GMC Sierra 1500?

Or is your weather going to improve. You’ll need to heat the tranny pan for sure and maybe the lines and cooler to get it to move. Drag would be the fastest. Rent a large tarp and a hermon nelson type heater (works good 2 to 3 hrs at -30 and you should be moving). Then let drain the atf and refill.

What was the problem with my 1990 Chevy k1500?

My old 1990 K1500 had the same stalling problems until I changed the EGR valve. We have a 1990 2wd 350 tbi with similar issues. So far it has a new distributor (for an unrelated problem), idle valve, throttle position sensor, knock sensor, temperature sensor, fuel filter, plugs & wires.

Are there any recalls on the GMC Sierra?

MAY 2016 — General Motors LLC (GM) is recalling certain model year 2016-2017 Chevrolet Silverado 1500 and 2016 Cadillac Escalade, Cadillac Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, GMC Yukon and GMC Yukon XL vehicles. The front upper control arms may have inadequate welds near the control arm bushing.

What should the voltage drop be on a GMC Truck?

The voltage drop should be performed with the fuel injectors disabled and while cranking the engine. The voltage drop should not exceed 200 mV. If the voltage drop is above 200 mV, replaced the effected cable. Please follow this diagnostic or repair process thoroughly and complete each step.

What kind of engine does a 1995 Sonoma have?

I’ve got a 1995 Sonoma with the 2.2 and it suddenly quit while I was driving on the interstate at about 70 mph. I got it home via AAA and found I had plenty of fuel pump pressure as well as spark.

Why does my GMC S15 die at high idle?

Recently my truck has began to die when coming back down to idle. In looking at the fuel injection, I can see the injectors stop injecting fuel. After it dies, it is very hard to restart unless it is left alone and cools a bit. If the IAC is unplugged, the engine will run at high idle fine.

When does a GMC Truck shut off when in gear?

Chevrolet- GMC Truck Shuts Off When In Gear. After the motor heats up when i put the truck in drive. It also shut off when i put in reverse. The Chevy truck stalls . Sometimes the truck shuts off but mostly when i put the Chevrolet in drive it shuts off.sometimes it shuts off when i put the truck in gear. GMC Truck Shuts Off When In Gear.

How much is a 2007 GMC Sierra 1500 Classic?

How much is a used 2007 GMC Sierra 1500 Classic? In CARFAX Used Car Listings, you can find a used 2007 GMC Sierra 1500 Classic for sale from $9,977 to $16,995. The average selling price of this vehicle on CARFAX is $13,288. Is the 2007 GMC Sierra 1500 Classic a good car?

Where are the grilles on a GMC Sierra?

GMC Sierra grilles for your pickup truck represent one of the ways you can quickly, easily, and effectively give your vehicle a thrilling new look – it’s hard to miss changes to the grille, since it’s sticking out right at the front of your truck!

When did the GMC Sierra 1500 come out?

No accident or damage reported to CARFAX. Purchased on 06/01/07 and owned in NC until 05/24/21. Driven an estimated 8,245 miles/year. No accident or damage reported to CARFAX. 1st owner purchased on 08/14/07 and owned in GA until 04/10/15 • 1st owner drove an estimated 11,902 miles/year • 2nd owner drove

What kind of crate motor does a GMC Truck have?

SDPC: 350 V8 long-block, part no. 12568758 (for ‘87-’95) and 12530282 (‘86-2000). While not truly complete, drop-in crate motors, Scoggin-Dickey has replacement long-blocks specifically for this generation of trucks, and they’re all new, not rebuilt. They also come with a 36-month/100,000 mile limited warranty, which is nice.

Why did my Silverado Sierra Flasher go bad?

My flasher relay went bad as well..the dealer fixed it i dont know what part number they used but if u can use the 3/6 with no issues just use it that way your good to go when u upgrade Well, stupid me, I guess I totally missed the blown fuse… So replaced that and we are signaling again!

What’s the part number on my Silverado Sierra?

Well, i purchased the new part number recommended in the video (10383321) AC Delco part. Replaced it this morning and what do you know it solved my issue. For about 5 hours.

Is there a problem with my Chevy Silverado?

Chevy: silverado..the car start but wont stay running what could be… have a chevy 99 silverado… have a chevy 99 silverado 5.3 engine and the problem is that the car start but wont stay running what could be wrong? Submitted: 10 years ago.

Why does my Chevy Silverado only start for 2 seconds?

If it only starts for 2 seconds, you have triggered the security system and need to do the relearn, or the fuel pump system is not working lkie it should. Can you do the relearn and see if it corrects your problem. If it does not you will need a digital volt meter and a test light to do some testing with.

What kind of truck is a 2001 GMC Sierra?

I have a 2001 GMC Sierra 1500 SLT 5.3l that I bought used with only 80k miles on it. This truck starts then immediately stalls. Here is a list of things that I have replaced to no avail.

Why does my car make a warning beep sound?

A single beep announces that it has been activated. If the sound continues, then the HAC could be malfunctioning or there could be an issue with the system and needs attention. Warning sounds in vehicle’s warn the driver about issues that are not set or not working properly. There could be sounds for the following:

What does the warning chime sound like while driving?

I have a warning chime that has started to sound intermittently while I drive. It first started a few weeks ago, and it sounded like a sick bell. After awhile, it began sounding like a single “bong”. Now it’s “bong bong” when I drive, it’s intermittent, but it’s more often.

Are there any DIC messages on Savana vans?

On 2016 to 2019 model year Express and Savana Vans, there are no DIC messages indicating grade braking is Enabled, Disabled or Active. The grade braking feature is operational, but there are no DIC messages.

What does cranks but wont start mean?

SilveradoSierra.com • Cranks but wont start. Fuel problem? : Engine Cranks but wont start. Fuel problem? Well i hopped in my truck this morning to go to work, everything was normal. I started it up and let it idle for a second or two and then right when i was about to put it in reverse it just died like someone flipped a switch to kill it.

What to do if your Silverado Sierra wont start?

get a rubber headed hammer and have 1 person crank the motor and another bang on the fuel tank. Most of the time it will work to get it started thats when u know its the fuel pump. It may not work though and it still could be that.

When do you Know Your GMC Sierra ignition switch is bad?

If your GMC Sierra is starting right up, but then immediately dies, that is a very good indication that the ignition switch is bad. Here’s what happens. You aren’t getting power to the ignition or fuel pump while the key “rests” in the run position.

Is the GM Silverado a no start / long crank car?

Earlier this month we reported on a General Motors Technical Service Bulletin that detailed a “No Start / Long Crank” condition affecting a long list of GM products. Recently, the 2021 Silverado and Sierra, both light duty and heavy duty variations, were added to the list.

What’s the difference between no start and no crank?

It’s important to know that a no crank and a no start condition are not the same thing since this article only concentrates on testing a no start condition. In layman’s terms, a No Start Condition means that your vehicle’s starter motor is cranking the engine but the engine is not starting.

What does it mean when your car says no crank?

A No Crank Condition means that the engine is not turning over when you turn the key to crank the engine. The most common problem, that causes this condition is a failed starter motor. The most common problem, that causes this condition is a failed starter motor.

Are there any problems with the 2015 GMC Sierra?

Another common problem with 2015 GMC Sierras is a broken air conditioning system. It was most prevalent in trucks with the 5.3-liter and 6.2-liter V8 engines. In some cases, only the condenser or the compressor needed to be replaced, which costs around $500 each. Even worse, some drivers had to replace these components multiple times.

While it’s not as popular as the Ram 1500 or the Ford F-150, the GMC Sierra 1500 is still one of the most capable trucks you can buy. This truck has been around since 2007 and has shockingly little complaints compared to its rivals.

What kind of fuel does a GMC Sierra use?

The 2020 GMC Sierra SLT with the 6.2L V-8 engine requires premium fuel. (Image courtesy of General Motors) Gone are the days where premium fuel is reserved for high-end sedans and SUVs. As truck customers demanded more performance from their rigs, manufacturers responded with bigger, more capable V-8s.

What kind of engine does GMC Sierra 1500 have?

Read the vehicle’s owner’s manual for more important feature limitations and information. Sierra’s 9,200-lb rating requires a properly equipped AT4 Crew Cab Short Bed 4WD model with 5.3L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual.

Which is the latest generation GMC Sierra truck?

GMC has always made top-level engineering the rule, and the latest-generation Sierra is no exception. Watch the video to see the best of what Sierra has to offer in action. 1.

Why does my GMC k1500 blower not work?

Here is a possible solution for your 1995 GMC K1500 blower that wont work on high. First remove the glove box and set it aside. Now look into the area that the glove box resided. You will see a wire harness covered in factory foam and next to this on the right you will see a flat silver box that is your ECM.

Why does my GMC heater not work on high?

1997 GMC C1500 Heater/AC blower will not work on HIGH. I have replaced the black BOSCH relay behind the glovebox, the blower RESISTOR and the blower MOTOR and still cannot get the blower to work on HIGH. I remember in older model years of GMC’s and Chevys that their was a high speed blower relay that caused this issue.

Why is my Chevy Silverado Sierra running cold?

From my experiance fast temp changes are most likely a air pocket or flow issues. The 198 to 170 in a km is along the lines of too fast to be normal. Have tried 4 thermostats from different suppliers so not likely the issue. No noises. Used old water pump as was working fine and also less than 1 year old. Radiator is same part number as old one.

Is the water pump on my Silverado Sierra working?

Used old water pump as was working fine and also less than 1 year old. Radiator is same part number as old one. You have no flow then… if you did your lower hose would warm up..

What causes a GMC Sierra 1500 to lean?

The only other thing that will cause a lean condition is low fuel pressure. A vacuum leak will be problematic at idle and go away with higher rpms. Low fuel pressure will get much worse at higher rpms. 123 people found this helpful.

What kind of car is a GMC Sierra?

I have a 5.7L 1500 GMC Sierra that has lately decided to strand me at random locations throughout my hometown. I get in in the morning, crank, and it goes.

What should fuel pressure be in a GMC Sierra 1500?

I assume there really is no way of testing the the regulator itself considering it’s incorporation. 38 people found this helpful. The test is: 12-15 psi when the key is turned on and the pump will shut off within 3-5 seconds and the fuel pressure should drop to 12-13 psi. 11 being the bare minimum and 13 the Max.

What causes engine to shut off and then start back up?

No warning lights come on and all the gauges are normal. I got the garage to scan computer and they said no codes were coming up. So the blazer starts fine and runs fine just shuts off whenever it feels like without warning. Any suggestions? Answer: This could be a problem of a failing fuel pump. This is pretty common on this truck.

Why does my Chevy Suburban stop while driving?

Battery is fine because all power still works. After waiting ten minutes or so will start again only to drive a few miles and engine stops again. Any clue? I am working on a 95 with a 5.7 engine.

What causes a Chevy Suburban engine to stall?

Stumbling and poor idle can be caused by air or fuel starvation so make sure that those filters are OK. I think that my own problem is caused by dirt in the fuel tank plugging up the fuel intake screen. I think the dirt falls off when the engine is shut off.

Are there any problems with the Chevy 4.3 Vortec engine?

The 4.3 Vortec engines made from 1996-2002 (L35 and LF6) have been reported to have engine knock problems. In a properly functioning engine, fuel burns in even pockets instead of all at once. The pockets burn in even timing, in sync with engine cycles. Engine knock occurs when the fuel burns unevenly and out of sync with the engine cycles.

Which is a symptom of a possible ECM problem?

Engine performance issues are another symptom of a possible problem with the ECM. If the ECM has any issues, it may throw off the timing and fuel settings of the engine, which can negatively affect performance.

Are there any problems with the GMC Sierra 1500?

Problems with the Transmission. Aside from the engine, it’s vital that your powertrain is operating correctly for you to get down the road. When the components of a powertrain begin to fail, drivers can experience sounds, rough shifting and an unpleasant ride. Owners of the 2018 GMC Sierra 1500 find that the powertrain gives continuous problems.

What kind of gas mileage does GMC Sierra get?

GMC has five models of the Sierra: 1500, 2500HD, 3500HD, Denali, and Hybrid. The Hybrid V8 gets 21 miles per gallon in the city and 22 on the highways.The Sierra is a large truck with a powerful engine, but you can improve its gas mileage by changing your driving style and making changes to the truck. Go to a mechanic for scheduled maintenance.

Why does my GMC Sierra take so long to fill?

Question Here.: There is a restriction between the gas fill goose neck and the tank making it accept gas but very slow. It takes about 10 minutes to put in 20 litres of fuel. Can I fix this myself. I have been told that if I shove a garden hose in the filler neck I can force the restriction into the tank.

What can I do to improve my Sierra truck’s fuel economy?

Oil becomes thick over time, and the engine needs to use more power to move the oil through the motor, which reduces fuel economy. Consider installing Eibach Springs on your Sierra. Eibach Springs reduce drag and improve all around performance. They have been shown to improve fuel economy, especially on pick up trucks like the Sierra.

What are the most common problems with a GMC Sierra?

Another 258 people reported the second-biggest issue where heating and air conditioning temperature and air delivery mode door actuators may fail. If one or more delivery mode door actuators fail, the HVAC system may not produce correct temperatures or air delivery. The HVAC system stores fault codes, which help with diagnosis.

What should I do if my Silverado engine dies?

Update as of today: 1) the truck hasn’t started and kept running since last week. It only starts right up, then dies immediately. 2) I got a fuel pressure tester and the pressure is at 53 with key on, and maintains pressure when it starts (then dies).

Where is the p1626 code stored on a Silverado?

They found the same P1626 code stored, in history, as last year. The tech suspects the theft deterrent module (apparently located under the dash) is not powering up when the problem occurs. They recommended a new module, but the part is discontinued.

How can I Change my Silverado Sierra to 4WD?

You can likely walk into any GM dealer and find the parts in stock its that common. But before you buy one, ide at least check the circuit board, you need 0 skills to do this. Likely you could reheat their old solder, but ide add a bit

Can a Silverado Sierra be put in neutral?

On my way to work this morning, however, the red neutral light came on and I couldn’t get it into any other setting, even after stopping/putting the truck in neutral/reverse/drive. I’ll see what happens this afternoon on my way home.

Why does my car not start when I start it?

There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start…it’s because one of these components is missing from the mix.

Is the front blower on my Tahoe Z71 not working?

Stockton, Ca. Greetings, I have a 2004 Tahoe Z71 with a non working front blower motor. My son, which drives the vehicle, stated that the blower motor just stopped working while going down the road. I began checking it out by checking all fuses and relays.

Why is the blower motor not working on my GMC Yukon?

All appear fine. I then pulled the blower motor out of dash and determined there was power to the plug at the motor. I bench tested the blower and it worked fine. I have power from the switch to the blower resistor and from the resistor to the motor. Plugging the resistor back in, plugging the motor into the resistor but the motor fails to work.

Is there auto stop start on 2019 Silverado?

If the introduction of the all-new 2019 Silverado 1500 didn’t bring a sufficient amount of excitement for you, then we have some more good news to share: the 2019 Silverado engine auto-stop start feature can be defeated (or disabled) by the driver via a button in the truck’s cabin.

Is there a button to stop the engine on a Silverado?

The 2019 Silverado engine auto-stop start feature can be disabled by the driver using a button in the truck’s cabin.

How can I Fix my Silverado Sierra Drive line?

Step one, loosen the four 11mm bolts by the rear end. Step 2, carefully pry off the driveline from the rear end. Step 3, have a buddy help you and pull away from the transmission firmly careful not to pull too hard and bang your drive line.

How to check battery voltage in GMC Safari?

Remove the large 17 pin connector from the instrument cluster. Using a digital Volt/Ohm meter, measure the voltage from pin A13 to gnd with the ignition in run. The meter should read battery voltage. If the readings are less than battery voltage, or zero, repair the pink/white wire from the ignition switch.

What is the scan code on a GMC Sierra?

Usually it is accompanied by a check engine light and scan code of P0446 or P0449, but not always. Most of the large national parts store chains can scan the computer for free. If this was bad, it may be under the factory or emissions warranty coverage.

Why does my GMC Silverado have no crank?

This is a fix for a known electrical issue with the 2003-2007 C/K series GM Trucks where a bad ground causes multiple issues. Such as no start, no crank, intermittent no gauges, and sometimes the theft light would stay on, and the parking lights would stay on.

What kind of fuel economy does a GMC Sierra 1500 have?

Among all the other V-8’s out there I researched, the 5.8 had the best fuel economy. And with GM’s 5yr/100,000 standard powertrain warranty, that measure of commitment was certainly more piece of mind for ownership. Sits high with the 17″ tires and road visibility real good.

What kind of transmission does a Silverado 1500 have?

When diagnosing a shudder vibration condition on some 2016-2018 Silverado, Sierra; 2016-2020 Tahoe, Suburban, Yukon; 2019-2020 Silverado 1500 and Sierra 1500 models equipped with 5.3L V8 engine (RPO L82, L83, L84) and 6L80 6-speed transmission (RPO MYC), it’s critical to determine the source of the vibration in order to make the proper repairs.

Why does my Chevy truck backfire when I hit the gas?

Its sputtering, backfiring, misfiring, in the low RPM band (below 2k) hit the gas and it upshifts and clears up. I also noticed its idleing rough. So, leaky-cracked manifold?

What kind of warranty does a 1998 GMC Sierra 1500 have?

Additionally, find 1998 GMC Sierra 1500 warranty and reliability information, such as limits on bumper-to-bumper coverage and major components. The monthly payment is based on the price of this vehicle assuming it is financed. If you choose to lease, you can also use the payment calculator to determine your lease terms.

What causes a Silverado Sierra to hesitate when accelerating?

As of today it starts fine and idle’s fine but when accelerating you can get up to speed by slightly pushing the pedal,but if you try to give it some gas anything above slightly pressing the pedal it hesitates and backfire once you push it to that point then it hesitates at any speed when trying to give it gas Just guessing here. 1. Spark Plugs?

What’s the fuel pressure on a Silverado Sierra?

Thinking it maybe clogged cat or cats, but I checked my fuel pressure today and with key on and engine off it read 50 Psi, then running it drops down to about 47psi,hopefully it’s not the pump or bad check valve on the pump,hopefully clogged filter being that I replaced the pump and filter about a month ago, running out of ideas

Why is my GMC Valev stalling at low rpm?

I had the IAC out and cleaned the valve and the port. the valev is not siezed and at idle there is no changes unless the ac pump cycles but is otherwise smooth and even. PCV seems to be fine with good vacuum at the valve and free motion of the valve.

Why does my bike start when I turn it off?

Unscrew the ignition module from the bracket and wiggle the wires when the bike is on. If you duplicate the issue, that’s it. That could also be why it starts sometimes and not others. Bc you’re turning the key on and off and it’s “hitting” right or wrong.

Why does my Dodge Ram stop at a stop sign?

This causes the power steering and everything to stop. When at a stop sign it can be started safely from park or neutral but when moving it has to be put in neutral to re start because the brake system does not work good either. It has happened at stop sign and stop light as well as driving down the road at 55 mph.

Can a car shut down with low power?

Vehicle shut down with low power at 50 mph with all lights working. Computer has car shut down and can not start. Driving at the speed of 55 mph on two lane road coming down a mountain and kia Optima sx 2. 0l turbo started losing power then at 45 engine shut down. Coasted to shoulder of the road and will not start.

What happens if your car engine stops while driving?

An engine that stops all of a sudden will cause you to lose control of your vehicle to some degree, especially if you’re driving fast. You also won’t hear it running anymore. This can happen with old and new cars as well. There are all sorts of reasons as to why a car engine would stop suddenly while you’re driving.

What to do when your lawn mower stops running?

Check for fuel as much as you can without the vacum of the motor and the fuel line disconnected. Fuel did come out of the carb when the fuel line was disconnected. I would have thought by putting some gas directly into the carb and trying to start would have let me know if I had a fuel problem.

Why does my Jeep engine suddenly stop running?

If your fuel lines are ran in a position that could get a heat source try insulating the line and see if this dosnt stop the issue. I bought it with the conversion on the fuel lines, just a educated guess I have had the situation on another jeep I had . Good luck 4 people found this helpful.

What to do if your Toro zero turn stops?

With the engine “not” running and the key switch on, pull your PTO switch and listen for a click. BKBrown, you were correct, but unfortunately it was a lot worse than the connection. The wiring & connection got snagged into the clutch/pulley!!!!

What did I do when I decided to stop running?

That day was so full of inspiring, emotional energy that I decided I wouldn’t stop running. I ran some 10Ks. A few 5Ks. I did an obstacle race.

Why did I stop running in the morning?

Every morning, I looked forward to taking my coffee out to my miniature deck filled with Target plastic furniture. As this became my routine, I noticed someone else’s: a young woman who used the endorphins from running to jump-start her day instead of getting energy from caffeine in a cup.

Why was quitting running the best thing for my health?

The very thought of him being held back by something potentially life-threatening would get me through long runs and unforgiving hills. If all he wanted was to walk without his stitches pulling at his stomach, surely I could make it through an elective run on a Sunday afternoon.

How often should I run after taking a break?

How to: At first, stick with short, easy runs, and take walk breaks. Start with three to four short runs per week so that you’re running every other day. Try five to 10 minutes of running at a time, or alternate between running and walking.

What causes spark to go out of ignition coil?

Problems associated with meeting these requirements can be as simple as a corroded wire or weak battery. More complicated issues may also contribute to spark loss, but basic conditions are still the general means for good function of any ignition system.

Why does my GM pickup engine not start?

How To Test The Fuel Pump On GM TBI Fuel Systems (for throttle body fuel injection fuel system equipped vehicles). A failure in one of the Passlock system’s components will cause the engine to start and then stall after a few seconds. This is due to the fact that the PCM, in your GM pickup or SUV, has disabled the fuel injectors.

What kind of problems does a 1993 Jimmy have?

I have a 1993 Jimmy. It has been having starting issues. We have heard everything from the fuel injectors needs to be cleaned to replacing the water pump. We have replaced the computer twice, the second time the garage replaced it free. But now it does not start but turns over.

How to troubleshoot a GM 4.3L no start?

Check that the 8 cylinders are getting spark with a spark tester. The distributor cap is good. The ignition coil is good. The ignition control module is good. The crankshaft position sensor is good. The distributor cap could be bad. The ignition coil to distributor cap high tension wire could be bad. The ignition coil could be bad.

What causes a GM pickup truck to stall?

A failure in one of the Passlock system’s components will cause the engine to start and then stall after a few seconds. This is due to the fact that the PCM, in your GM pickup or SUV, has disabled the fuel injectors.

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