What kind of acceleration does a GMC Sierra have?

Alright I’m going to do the best I can to try and describe what is going on. I have a 2005 GMC Sierra with the 5.3L H.O. 139K. The truck starts and idles without an issue. Durring light acceleration and at low speeds (city driving 35 mph or so) the truck seeems to run fine.

Why does my Silverado Sierra jerk at high speeds?

If you hammer it down, the truck smooths out. It appears to only happen durring light acceleration and at higher speeds. The best I can do to explain the jerking is that it feels as if is missing or being starved for fuel and about to run out. There are no check engine lights on in the truck.

Why does my Silverado make durring light acceleration?

In addition when crusing at highway speeds it runs fine, but anytime you have to lightly accelerate up a hill or something it starts again. If you hammer it down, the truck smooths out. It appears to only happen durring light acceleration and at higher speeds.

What causes a GMC Sierra to lose its Stabilitrak system?

There are many things that can cause the StabiliTrak system to lose its ability to function. It is a complex system. Wheel Speed Sensor – If one of the wheel speed sensors is out, your Sierra will no longer be able to tell if all of the wheels are turning at the same speed.

Why is traction control not working on my GMC Sierra?

Traction Control Not Working – Your Sierra’s traction control system mostly uses the same sensors to determine if a wheel has broken traction. Unlike StabiliTrak, which controls lateral issues (sliding), traction control keeps the wheels from unnecessary spinning.

Is the GMC Terrain all wheel drive inoperative?

On some 2008-2010 Enclave; 2007-2010 Equinox, Acadia; 2007-2009 Torrent, OUTLOOK; 2008-2009 VUE; 2010 Terrain; and 2009-2010 Traverse models equipped with All-Wheel Drive, the All-Wheel Drive System may become inoperative with a Service All-Wheel Drive (Service AWD) light On.

Why do I lose power on hills GMC Sierra 1500?

2000 gmc sierra 4.3 shows lean feul but can not find how or where to look 4 people found this helpful. my 2000 sierra starts good and ideals good the only thing that shows up on the scanner is the fuel is lean everything else shows good pls help 3 people found this helpful. Bad spark control module people…….that’s the problem….

What causes a GMC Sierra 1500 to have a lean idle?

Vacuum leaks can cause a lean condition and/or possibly a high idle. Check for cracked hoses a bad gasket or a faulty EGR or PCV Valve. 70 people found this helpful. 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.

Are there transmission problems with a 2003 GMC Sierra?

After five years, most of the issues with these trucks had been worked out. Now, these trucks are getting older, and it’s very likely that your 2003 Sierra may be having transmission problems. Below, you’ll find a ton of troubleshooting your transmission problems.

What to do if your GMC Sierra has no overdrive?

AutoZone, or any other parts store will be able to help you with this for free. It really is worth noting that there doesn’t need to be a trouble code thrown for there to be a code in the computer. No 1st and No Overdrive – When the truck has no overdrive and no first gear it’s almost certainly in limp mode.

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.

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 makes a GM 454 backfires a carb?

If a 4 barrel it might be the accelerator pump. I’mpretty sure Tim’s is a throttle body injection like mine. These look like a carb but are far from it. For that period it was GM’s answer to a carb and I think they worked better than a carb, but they came with their own problems.

Where is the advance spring on a GM 454?

There is a mechanical advance spring set up under the distributor cap. Also, unless the engine system has been updated; there is a vacuum advance unit attached to the metal base under the cap. The top item is to replace ALL the vacuum lines.

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.

What causes a GMC Sierra 1500 to stall?

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. 308 people found this helpful. Bad hesitation off of the start, pumping the gas pedal helps to get her going. Pushing the pedal hard well bog it out and almost stall. 290 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.

Why does my car stall at highway speeds?

The engine may start and idle fine, but run out of power or even stall at highway speeds. If the engine starts right back up after stalling, the likely cause is low fuel volume delivery because of a weak pump. If the engine is running normally one minute, but suddenly quits, loss of ignition may be the problem.

Can a stalling engine be intermittent driveability?

Intermittent driveability problems of any kind are always a challenge to diagnose. When a customer brings you a vehicle and complains of a stalling problem, you may not have much to go on other than their description of what’s happening and when it happens.

Why does my Chevy truck stumble when idle?

Very shocking because it’s never done that. A few days later it began to stumble and hesitate upon acceleration. During idle it would sound as if it were about to shut off but it wouldn’t. Rough idle and hesitation sounded like a vacuum problem, so I checked the TBI.

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.

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 does my Silverado 4L60E have lame shifts?

Apparently on the newer trucks the engineers re-designed (un-desinged?) the 4L60E so that it has incredibly lame shifts. The converter never really locks up like you would think. There’s something called Pulse Wave Modulation (PWM) used to make the converter lock-up almost undetectable.

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?

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.

How did my Silverado Z71 lose all power?

Truck lost all power… Just drove my 2014 silverado z71 to a friends house where I turned the truck off cranked no problem with remote start as normal. My friend needed me to move my truck forward a bit so I used remote start again, but this time the truck only half started and then shut off.

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.

What was the problem with my Silverado truck?

Some 2014’s had an issue with Ground G203 behind the driver A pillar at the dash. Pain to get at with bigger hands, but some trucks had a piece of insulation that was installed incorrectly and inadvertently got squished down between the ground and the truck chassis causing all kinds of problems.

What should I do if my truck lost all power?

Now there is no power to unlock the truck no radio power on no power what so ever. We tried jumping the truck off and the starter just clicks, but power does turn on. What could it be? Re: Truck lost all power…

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