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 ?
Keywords:impala
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 ?
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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