2001 Mercedes Benz 320e no acceleration when pressing the g

Tiny
BMACCH
  • MEMBER
  • 2001 MERCEDES BENZ 320E
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 51,000 MILES
When I press the gas pedal down hard to pass a car the card will accellerate very slowly after pressing down the gas pedal. When I turn off the engine snd restart the engine the problem stops.
Do you
have the same problem?
Yes
No
Saturday, March 28th, 2009 AT 12:17 PM

3 Replies

Tiny
GFIMOTORCARS
  • EXPERT
There are a few things to consider. First a failed throttle position sensor. When these fail you will loose throttle response. Often times you will experience disproportionate acceleration according to pedal position, also the sensors at times will flaten out causing dead spots in the throttle pedal. Also a worn diaphragm in the fuel pressure regulator may cause a problem similar to this. Also, depending on the quality of gas you use this may also be a plugged fuel filter. Cheap gas does not react well with MB parts. Tell me, do you have any warning lights on in the dash. Is there any bucking or jerking that is associated with the problem? How is your fuel mileage? Lower than normal?
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Saturday, March 28th, 2009 AT 5:18 PM
Tiny
BMACCH
  • MEMBER
No warning lights come on in the dash. Also there no bucking or jerking. The fule mileage seems normal. The problem will only happen if the gas pedal is depressed fast and hard, then there is almost no gas pedal response, turning off the engine
and restarting corrects the problem.
If I drive normal the problem will not occur.
Thank You
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Sunday, March 29th, 2009 AT 9:06 PM
Tiny
GFIMOTORCARS
  • EXPERT
This definately sounds like a failed throttle position sensor or throttle actuator. More than likely the beginning of the end of this sensor or acutuator. I would definately recommend considering these as a very possible cause for this. Often times this will not throw a warning light either but replacement of these over time is fairly common for conditions such as yours.
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Monday, March 30th, 2009 AT 10:29 PM

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