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2008 Impala Chev.

Once in a while when I go to accelarate the car seems to hesitate a little, also the gas pedal seems to vibrate or shake a little, then it’s alright. It’s like something is slipping ?

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1 thought on “2008 Impala Chev.”

  1. Your vehicle is equipped with an Electronic Throttle Body.
    This commonly referred to as “Throttle By Wire”. This means the gas pedal does not attach to the engine with a cable like the older cars.

    That being said, there are two different TPS sensors and a motor inside the throttle body that are not serviceable. The symptoms you are describing are that of a failing Throttle by wire assembly. The fix is to replace the throttle assembly. They tend to be on the expensive side, so be prepared when pricing.

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