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….

Can a bad crankshaft sensor cause a check engine light?

Another issue of a potential problem with the crankshaft position sensor is an illuminated Check Engine Light. If the computer detects a problem with the crankshaft position sensor’s signal, it will activate the Check Engine Light to alert the driver of the problem. A Check Engine Light can also be set off by a wide variety of other issues.

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 causes a check engine light to come on?

4. Check Engine Light Comes On. A bad or failing catalytic converter can also cause an illuminated Check Engine Light. The oxygen sensor and air-fuel ratio sensor in modern vehicles monitor the efficiency of the catalytic converter by tracking the gas levels in the exhaust.

What causes a flashing check engine light on a GMC Yukon?

Other Issues: Flashing Check Engine Light- GMC Yukon While a majority of the time, the flashing check engine light is going to be caused by a misfire related to your Yukon’s ignition system or fuel system (as stated above), there are other issues that can cause it.

What causes a GMC Yukon engine to misfire?

Keeping in mind that any engine needs air, fuel, and spark for ignition, your GMC Yukon’s fuel system can often cause the engine to misfire. It can run too lean or rich. Alternatively, there may not be enough fuel for proper combustion, or the fuel isn’t atomizing properly.

What causes a GMC Yukon to run rough?

EGR- The EGR system recycles burnt exhaust gasses back into the combustion chamber. Crank/Cam Sensor- When the cam or crank sensors are not being read by the ECM/PCM, it’s impossible to get the ignition timing right. If you Yukon does start at all, it’ll run rough.

Why does my car lose power going uphill?

Reasons Your Car Loses Power Going Uphill 1) Bad Fuel Filter. You can’t have a good working engine without fresh pure gasoline flowing into it at all times. If you don’t have a good fuel filter to prevent the impurities of the fuel from flowing into the engine, then it could ultimately jeopardize the performance of your engine.

Why does my car run harder at high altitude?

You’re likely also running the air conditioning, which makes the engine work a bit harder. If you’re driving at a very high altitude, there is less air to suck into the engine.

Why does my diesel engine light up at 55 mph?

The Bucking you get is the torque converter Locking & Unlocking at around 55 MPH And The Turbo Boost Press goes High and/or Low so you get Engine lights for High and Low Boost. This could also be a bad turbo or wastegate. Turns out its the Vacuum Relay mounted on the Right Side Valve Cover.

Is there a problem with my GMC guage?

That took care of my security issue I had a few weeks back. This almost sounds like the problem that im having, Did you figure it out?

What to do if your GMC has an electrical problem?

The full rebuild replaces all steppers with new gen motors, lamps, and the troubleshooting fixes bad solder joints, and can fix power supply problems originating in the cluster. Old ones like mine can also benefit from a re-flash with new software which GM provides.

What to do if your engine is running too hot?

The fix: Check the choke plate and make sure it is opening completely. The engine may be running too hot. The fix: Check and repair the cooling system. The fuel pressure regulator may be operating at low pressure. The fix: Check fuel pressure with a fuel pressure gauge.

What causes a Chevy 2500HD to lose power under load?

Probably P0087. Check the fuel hoses at the side of the trans– they can get kinked, weak and collapse. I’ve just experienced a very similar situation with my 2005 2500HD. After driving about 2 hours, over varying terrain, I had to stop at a light (not the first on the trip).

When did GMC Duramax lose power under load?

In 2012 there was a P1093 code and the dealer invoice states “…low rail pressure during enrichment. Command high fuel rail pressure, pressure drops. Follow diagnostic chart, test system pressure, relief valve failed” so they replaced the FPRV.

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 kind of truck is a Silverado Sierra?

Feels as if Truck is Missing while riding down road. My 2001 Silverado 1500 4×4 5.3 has 270xxx miles on it. It has had a Full tune up, new fuel pump, and fuel filter installed within last 5000 miles. While driving home and maintainig a steady speed of 60-65 mph the truck acts like it has a slight miss to it.

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.

Is it safe to drive a GMC Sierra?

The dealer and now GM say that this is a normal function for this vehicle , but now the brake pedal goes to the floor and although they are telling me it is safe to drive I am refusing . This truck sits in my garage . I found over 100 similar complaints on the NHTSA web site , some involving accidents with injuries and deaths .

What causes a car engine to hesitate and hesitate?

Another common cause are dirty fuel injectors. If varnish deposits have built up in the tips of the injectors, they won’t spray as much fuel as they normally do, or will “dribble” fuel instead of spraying a fine mist. This creates a lean fuel mixture and conditions that are ripe for stumble and hesitation (also misfire).

Why does my car hesitate when I open the throttle?

Engine Hesitates, Stumbles, Lacks Normal Power. The computer uses this information to determine how much fuel is needed to maintain the correct air/fuel mixture, and when extra fuel is needed if the throttle suddenly opens wide.

What to do if your car is losing power while driving up hills?

If you start to have acceleration problems as you attempt to drive uphill, do not slam down on the gas pedal to try to get up the hill. You will only put more stress on the engine which won’t do any good if there is an issue somewhere in the engine.

What’s the maximum weight for a GMC trailer?

MAXIMUM TRAILER WEIGHT RATINGS (LBS.) with different GMC model lines when your vehicle is properly equipped. When determining the total weight of trailer and cargo, include the weight of any additional passengers and optional equipment (driver weight and base equipment are already included). 3,500 LBS. 7,000 LBS. 7,700 LBS.† 6,900 LBS.†

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 kind of tow rating does GMC Sierra have?

Sierra’s 12,500-lb rating requires Sierra Double Cab or Crew Cab Short box 2wd with 6.2L EcoTec3 V8 engine and NHT Max Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

Can a GMC Duramax run with no trailer?

Dropped the boat, let it sit a while then it ran great with no trailer. Took it back and they replaced “some fittings”. So 2 months later, I don’t fish near enough, I drove it 8 hrs to the coast and hooked up to a boat. It ran about 5 miles. Same thing , light comes on loss of power but can feather it up to 40-50 but cant push it.

Why does my car struggle to go up hills?

Once you start experiencing low cylinder compression, your vehicle will always be struggling on an incline because the engine power won’t be strong enough to push it up there. If you start to have acceleration problems as you attempt to drive uphill, do not slam down on the gas pedal to try to get up the hill.

Is it dangerous to drive a car uphill?

You may be able to drive slow on flat roads but once you get to an uphill road, you likely won’t be going anywhere fast. A clogged exhaust can be dangerous, as it is a fire hazard in extreme cases. If you think your exhaust may be clogged, the issue should be addressed as soon as possible.

Can a 1997 Dodge Ram 1500 drive up a hill?

My truck is bogging down and has loss of power. I can not drive up a slight hill – 1997 Dodge Ram 1500 My truck is bogging down… My truck is bogging down and has loss of power. I can not drive up a slight hill Truck has no power and bogges down down when given throttle.

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.

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 are the fuses on a GMC Sierra?

RH Turn and Stop Lamp) ECM 1 Fuse #15 10A Vehicle Control Module (VCM)/Powertrain Control Module (PCM) from IGN I Relay) INJA Fuse @20 15A Fuel injectors 1. 3, 5, and 7. Ignition Coils. Glow Pug Module, Fuel Heat. Water in Fuel (WIF) Sensor, Wastegate Solenoid IGN E Fuse #25 10A NC Compressor Clutch Relay.

What’s the price of a GMC Sierra 1500?

GMC Sierra 1500 HD Engine hesitates during acceleration Inspection costs $89 on average. It can be frustrating for any driver to expect certain acceleration from their vehicle only to find that the vehicle seems to be hesitant while speeding up.

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 is my Silverado Sierra sluggish to accelerate?

Have a KN intake system on it and keep it clean so I dont think that is it but I havent really done anything else as far as modifications. After accelerating it feels like it starts to let loose and eventually seems to get up to speed. Any ideas of what I can do? Get a custom tune. I would get an exhaust of some sort to help with the tune.

What’s the problem with my Silverado 4.3 V6?

2007 Silverado 4.3 V6 -39,000 miles…no engine or tranny mods. No exhaust. I do have a K&N air filter that I just cleaned. I don’t think I have that MAF sensor on my intake like the more expensive trucks do. My problem seems to be a lack of power, like it just doesn’t want to go (V6 jokes aside).

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.

How much does a GMC Sierra 2500HD cost?

Includes $450 in cash and discounts. Includes $450 in cash and discounts. Includes $950 in cash and discounts. Includes $950 in cash and discounts. Includes $950 in cash and discounts. Includes $1,450 in cash and discounts.

How can I find a GMC Sierra near me?

No exact matches found For better results, try removing filters, or using the sorting menu. Includes $450 in cash and discounts. Includes $450 in cash and discounts.

Is there a no start on a 6.5L PMD?

Those who are technically oriented and equipped with the proper tools, or who have a hard to solve no-start issue, can follow our in-depth 6.5L No-Start Diagnostic Guide

Why does my Chevy Tahoe shut down when backing out of a stall?

I have a 2003 tahoe over 120,00 miles. Its been shutting down on us when making a uturn or turning into or backing out of a parking stall. We thought it had something to do with the plugs because the idle was off, but plugs have been changed and idle is good again.

Why does my Chevy Silverado not go over 25 miles an hour?

If so then remove the 2 closest to the engine, they are almost touching the manifold. If that helps then there is a blockage in the exhaust. Most likely a bad catalytic converter or a bent pipe. If the converter is bad make sure its replaced with a proper OBD 2 cat, otherwise you will be going through this in 6-18 months from now.

Where was the 2003 GMC Yukon last serviced?

No accident or damage reported to CARFAX. Purchased on 10/31/03 and owned in PA until 04/08/21. Driven an estimated 7,736 miles/year. Last serviced at 123,778 miles in Philadelphia, PA on 09/12/16 • Vehicle serviced. No accident or damage reported to CARFAX.

When did GMC Yukon come on the market?

1st owner purchased on 07/15/03 and owned in VA until 07/03/18 • 2nd owner purchased on 07/03/18 and owned in VA until 06/06/21. 1st owner drove an estimated 9,225 miles/year • 2nd owner drove an estimated 10,508 miles/year.

How many miles does a GMC Yukon drive?

1st owner purchased on 05/09/03 and owned in CA until 03/03/14 • 2nd owner purchased on 03/03/14 and owned in CA until 06/06/21. 1st owner drove an estimated 7,196 miles/year • 2nd owner drove an estimated 5,711 miles/year.

Navigation