Chevy Truck Losing Power When Accelerating [Solved]

Chevy Truck Losing Power When Accelerating [Solved]


April 12, 2022

The engine must react appropriately to the gas pedal input whether you’re accelerating or attempting to pass. Although Chevrolet vehicles are powerful machines, they are not indestructible.

A loss of power is one of the most prevalent problems, that’s why you may wonder about; Chevy truck losing power when accelerating.

Let’s look at the most prevalent causes, symptoms, and treatments for this problem. We’ll start with the most minor issues before progressing to more serious failures.

Acceleration In Vehicles

Chevy acceleration

Power surges are often caused by a variety of factors, and many of the problems that lead to power surges can be addressed. To correctly identify power issues, and why a Chevy truck loses power when accelerating, we must first grasp 

The Fundamentals Of Acceleration

  • The throttle pedal regulates how much air enters the engine by being connected to the intake manifold.
  • A mixture of petrol and air is the most powerful blast. It’s sparked at just the right moment by a spark to produce the most devastating explosion. Pistons in diesel engines work together, with some being driven down to turn the crankshaft and others going up to compress the fuel-air mixture.
  • The amount of air supplied to the engine is inversely proportional to how hard you push on the throttle. The air-to-fuel ratio remains constant throughout the ignition, but it spins the crankshaft more times per minute and generates greater revolutions.
  • The engine’s primary function is to move the car ahead and, as a result, to raise its speed. For the execution of this operation, all of the components must be present. This will make detecting the problem more difficult; however, if you look for symptoms, most sources should be eliminated if your chevy truck losing power when accelerating.

Dirt & Dust In The Fuel And Air Filter

Chevy Truck Losing Power When Accelerating [Solved]

We’ve gone through why a chevy truck loses power when accelerating and how the engine obtains its power from the air and fuel mixture. Both air and petrol are filtered in different ways before they reach the engine block.

Dust, sand, and other faults that may influence starting quality are gathered by natural or synthetic fiber filters. Over time, the particles build-up to the point that air circulation is hampered.

When you push down on the accelerator, fuel will be overly rich in the air-fuel mixture, resulting in increased emissions.

The fuel filter, which resembles a tiny, cylindrical air filter and is housed in a transparent or metal casing, is another example. Because they’re see-through, transparent variants are especially handy since you can observe the condition of the filter at any time.

That’s also a reason why my chevy truck losing power when accelerating. Both filters are quite easy to replace and accessible.

Exhaust Clogged

Chevy Truck Losing Power When Accelerating [Solved]
  • Mice, bugs, and rats are attracted to rusted or abandoned cars that have remained in the open for months or even years. Because your attention will be focused entirely on the engine, detecting a clogged exhaust pipe is quite difficult. Because this is such an uncommon problem, I recommend taking out the exhaust manifold from the engine and seeing whether power returns.
  • This is a problem because ever-tightening emission standards are forcing firms to come up with new ways to cut automobile manufacturing. The exhaust system is the most important aspect of reducing fuel usage since optimizing efficiency can only go so far.
  • Diesel particulate filters (DPF) are much more difficult to clog, owing to their higher running temperatures and reduced complexity. To reduce emissions as much as possible, diesel engines require several systems, including DOC (diesel oxidation catalyst), SCR (selective catalyst reduction), and DPF (diesel particulate filter).
  • The ideal answer is to avoid difficulties, yet if still your chevy truck losing power when accelerating, there are things you may do without going to the garage. City and business driving create a build-up of particles in the system, which causes failure. The hotter a vehicle’s exhaust system gets as a result of faster engine operation, the more particles it eliminates with heat.
  • Reduce the gear and keep the engine running at 3,000 rpm for 10-20 minutes when there’s a long stretch of flat road or highway. If the issue is new, I advise consulting with a mechanic since forcing a lot of exhaust gases through a clogged system is not suggested. However, if the problem has suddenly arisen, heat treatment is both safe and necessary over disassembly and cleaning.

Fuel Tank Is Clogged

An unclean fuel tank on an older Chevy vehicle may be the source of the problem, the chevy truck losing power when accelerating.

A lot of different quality fuels go through the tank over time, and when combined with its natural propensity to corrode, the fuel delivery system will not be able to keep up with engine demands. Instead of taking your car to a mechanic, invest in a boroscope camera.

It will cost you less to take the vehicle to a repair shop, and you’ll save money in the long run by checking the gas tank yourself.

The Engine’s Fuel Pump Is Failing

Chevy Truck Losing Power When Accelerating [Solved]

The petrol pump, often known as a gasoline pump, is in charge of delivering gasoline to the engine at the proper pressure. It will eventually wear down due to the fact that it must operate constantly in order to provide fuel to the engine.

The causes of this might be anything from mechanical issues to fuel supply disruptions. The symptoms include gasoline tank noise, uneven acceleration, power outages, idling, surges in power, and other manifestations related to faulty fuel delivery.

This may also be a reason for your Chevy truck losing power when accelerating.

If your fuel pump must be changed, get it done by a professional. Even if you have prior expertise working with or around a large amount of highly combustible liquid, working with or around a large quantity of highly flammable liquid is not worth the risk.

Ignition Coils & Spark Plugs

Ignition coils and spark plugs can both go bad, causing a lack of power, rough running, misfiring, and higher gasoline usage. With the aid of only one tool—a spark plug key—you’ll be able to replace them in just a few minutes.

Remove the spark plugs and replace them. At this time, you may also change out the ignition coils if necessary. Do not over-tighten the new spark plugs; take your time to get a good level of tension.

Disconnect the truck from its battery, remove the coil on plug (COP), and replace the spark plugs.  

Mechanical Issues

Any remaining difficulties are critical, and they will require the assistance of a professional to repair. Diesel turbochargers may clog, reducing their efficiency or even shutting down completely.

The turbo may be cleaned to some extent by RPMs; however, it will most likely have to be disassembled.

A GRI or exhaust gas recirculation valve may cause engine failure, one of the ways to reduce pollutants. It’s possible to try replacing it yourself, but it’s best left up to the experts. The most severe scenario is a fuel injector failure.

They’re one of the most expensive elements in today’s engines, so don’t self-diagnose injector issues. In fact, you should go as far as requesting a second opinion to see if anything else is at play such as your chevy truck losing power when accelerating.


We hope you will be able to find the cause of your Chevy truck’s power outage and get it up and running! We’ve put together a list of our most popular articles if you want to learn more about car care and maintenance!


Jeffrey Bryce is an experienced motorcycle rider with years of experience caring for motorcycles. His natural fondness for motorcycles have made him come up with, which is dedicated to answering and teaching you how to care for your bike with the care it requires. LetsGoForARide is the one of his important lifework in reaching out to communities of motorcycle enthusiasts on how to take care of their bike and choosing the correct spare part.