Skip the auto shop - Our mechanics make house calls

Q: My car is difficult to accelerate after running for sometime

asked by on

Am using Mercedes Benz Atego 817. You can ran it for sometimes , let say 20 minutes then you leg will be on the padel fully pressed but it will not accelerate and sometimes the engine will go off and starting it again becomes difficult. When you are able to start it again you can't move it unless you wait for sometime. What could the problem be, because they have made me change the injectors and fuel pump but still the problem persist.

My car has 120 miles.
My car has a manual transmission.

A: I believe there is a fuel filter on your ve...

I believe there is a fuel filter on your vehicle as well. Was that changed too? A new fuel pump cannot perform with a clogged or partially clogged fuel filter. For issues like this, a technician will be able to hook to the vehicle to check for any trouble code that may have popped up or check the data while the engine is actually running and be able to pick up on any discrepancies. To avoid any unnecessary repairs, consider hiring an experienced technician like one from YourMechanic for a personal diagnosis of this acceleration issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: oil pan replacement

You have a two part oil pan and you are looking at the lower pan part. If this is the part that is damaged then you can get it out by disconnecting the motor mounts and lifting the motor to...

Q: Engine light blinking and the oil light come on. Accelerates slow but when you get to about 30 mph it smooth out. Then when you slow down it start shake.

For the cylinder that has excessive oil in it, the oil is either coming in for the piston rings being worn or the valve guide is leaking on the intake valve causing the engine to consume the oil. If the...

Q: Car won't accelerate past 3000rpm

This issue could be caused by a variety of things. I would suggest by checking to be sure that the idle air control module is working properly. Also, check to be sure that the throttle body is delivering...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...