Thread: Car lurching, tech said maybe throttle switch, does this make sense?

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  1. #1 Re: Car lurching, tech said maybe throttle switch, does this make sense? 
    Turbo is the way to go. BillBoost37's Avatar
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    If it were surging, as in you have to hold it back with brakes and it's trying to get away from you at lights etc. That's common of a TPS. Lurching though sounds like you are driving and all of a sudded it jumps.
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  2. #2 Re: Car lurching, tech said maybe throttle switch, does this make sense? 
    GT Level Member tcman49's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    If it were surging, as in you have to hold it back with brakes and it's trying to get away from you at lights etc. That's common of a TPS. Lurching though sounds like you are driving and all of a sudded it jumps.
    When I accelerate the car is fine initially and then its like the engine almost dies and then it picks back up, once up to like 40 or 50mph, the car is fine.

    This only happens after a long high speed expressway drive, its like something is getting hot and some sensor is retarding acceleration to protect the engine or something.
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  3. #3 Re: Car lurching, tech said maybe throttle switch, does this make sense? 
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    Get the engine code checked. My parents buick regal had a similar problem and it was the mass air sensor needed cleaning.
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  4. #4 Re: Car lurching, tech said maybe throttle switch, does this make sense? 
    Turbo is the way to go. BillBoost37's Avatar
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    Oh...yeah, that is likely the knock sensor. Odd how it does that huh?
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