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2002 Pontiac Grand Prix Question: Shaking while idling

 

Question

SarahJane, 3.1L V6, Salem, KY, April 09, 2009, 10:57
 Rookie

I have noticed my car shaking noticeably when I am idling. What could the problem be?

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, April 09, 2009, 11:13
     Master

    It could be a few things, ignition misfire, vacuum leak, bad motor mount etc.
    Have it checked out, especially if there are any warning lights on, you can cause more damage the more it is driven.

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    SarahJane, April 09, 2009, 11:17
     Rookie

    Is there any more signs that I could look for to help pinpoint the problem?

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    Bret Bodas, April 09, 2009, 11:36
     Master

    Perform a visual inspection of the vacuum hoses and intake hoses and pipes, make sure the clamps are all tight. Let the engine idle and listen for hissing noises(vacuum leaks) or a ticking/arcing noise(ignition misfires)
    Do you have any warning lights on?

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    SarahJane, April 09, 2009, 11:42
     Rookie

    The check engine light is on and I am ashamed to say it has been since I bought it.
    And I listened to it and all I hear is what to me sounds like a knocking sound, but I'm no mechanic.

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    Bret Bodas, April 09, 2009, 12:03
     Master

    Well, you're not alone! Have the codes checked, some parts stores will do this for free. Post the codes here and we will provide you the appropriate info.

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