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).

Are there any problems with the Chevy 4.8L Vortec?

The two engines tend to have similar problems, but the 4.8 Vortec comes in at a higher reliability rating on our scale due to its lack of AFM, which is known to cause problems on just about every engine it touches. 1. Intake Knock Sensor – 4.8L Vortec

What kind of engine does Silverado 4.3 have?

Also having this problem. 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.

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.

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.

Where can I buy a 2003 GMC Sierra 1500?

2003 Sierra 1500 listings within 50 miles of your ZIP code. Get answers to buy with confidence. Save when you purchase multiple reports. Get free quotes from dealers near you. Compare real, custom loan offers from multiple lenders in minutes!

Why is the reverse clutch not working on my 4L60E?

If the pan looks good, and the fluid looks clean, than it’s likely not going to be the low reverse clutch causing the problem. Valve Body Issues- A bad valve body can make the reverse gear not work in the 4L60E. If the valve body ends up warped, or if the gasket fails, it’s entirely possible that the gear won’t engage.

What are the problems with a 2004 Avalanche?

1 Transmission Failure 2004 Avalanche Average Cost to Fix: $2,400 Average Mileage: 94,000 mi 2 Axle Bearing / Differential Failures 2004 Avalanche Average Cost to Fix: $1,800 Average Mileage: 59,000 mi 3 Loud Noise Going Into Gear 2004 Avalanche

Are there transmission problems with my Chevy Avalanche?

Blown transmission at 15,000 miles. Trips to the dealer several times before w/ complaints of slipping transmission and banging into gear. Many other problems as well. Starter doesn’t disengage after ignition. Dealer says GM says I have to live with it.

Why does my Chevy Avalanche have wheel hop?

The computer needs some wheel spin in order to controll the torque. They say because there is no wheel spin, it gives full torque which causes the wheel hop. They said I could a high performance forward sprag gear (called a 29 element sprag gear) in the tranny to be able to handle larger tire & wheel combo.

Is the encoder on my 2002 Avalanche working?

After many encoder modules he found a update on the 2002 and did it to mine. It is a sensor that works with the encoder! Knock on wood it has worked well for several months now!

Why does my Vortec 5300 feel sluggish when I accelerate?

I have noticed that when I accelerate it feels a bit sluggish. 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.

Why is my car so slow to accelerate?

If there is just one tooth on the belt that is worn out, then you may have acceleration problems as you’re driving. If you don’t replace the timing belt when you’re supposed to, you could have entire teeth on the belt break off and go missing, or the timing belt could snap altogether. A snapped timing belt will leave you stranded.

Why is my GMC Sierra SLT so slow?

I own a 2011 GMC Sierra SLT. Oil level is good. This is related to the traction control system in your car. This system monitors the steering stability of the vehicle and engages when loss of traction has been detected. This system counteracts over steering and under steering by reducing power…

What causes a car to have a slow acceleration?

A slow accelerating car is the result of this incorrect data. It may also trigger the Check Engine light. Another cause of poor acceleration is a vacuum leak. To get the underlying cause of the problem resolved, you can request an engine diagnostic for slow acceleration.

Why is my Silverado 1500 chevrole so slow?

When an injector is clogged it can degrade the performance of the vehicle and the car may accelerate slowly or feel that it does not have enough power. Other symptoms include a rough idle, a vehicle that is hard to start and a decrease in fuel efficiency. A defective fuel pump will not supply enough fuel to the injectors.

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 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 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 Silverado not Rev at 4000 rpm?

At 1500 RPM, it puts up 20-21 in-hg of vacuum. At 3000 RPM, it puts up ~18.5 in-hg of vacuum. It will not rev above 4000 rpm sitting in park!! If I apply more throttle, the revs will actually drop to 3800, as if a load were being applied by a dyno, and the engine will start to ping.

When does a Chevy Silverado have no power?

If you put it to the floor, it won’t rev beyond 4000 RPM. At ~2500 RPM with only enough throttle to maintain speed (transmission manually shifted to 3rd gear), it will surge and hunt. In OD at 55 mph (engine speed below 2000), it runs smoothly but has no power to run up hill or into a head wind.

Why does my car jerk at low speeds?

Car jerks when accelerating at low speeds is not something rare. If you have driven a stick shift car before or if your car has a manual transmission, you are sure have experienced the car jerk followed by the engine stalling.

Why does my car hesitate when I step on the accelerator?

Instead of going faster by stepping on the accelerator pedal, the speed will be reduced. The vehicle may even stumble entirely during these seconds. This is what it means when the car engine hesitates. It is usually the result of a problem with the air and fuel mixture within the combustion chamber.

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 is my car losing power at low speeds?

If the pressure is low the fuel injectors will not be able to spray the correct amount of fuel into the combustion chamber and that will result in a loss of power. A faulty fuel pump will not pose problems at low speeds but when you are looking for quick acceleration you might be left wanting.

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).

Why is my Silverado Sierra sluggish to accelerate?