Thread: need to diagnose a problem with my grand prix. need advice.

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  1. #1 need to diagnose a problem with my grand prix. need advice. 
    emmaamelia
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    Question 01-24-2011
    i have a 99 grand prix gt. it has 177000 miles on it. i got it about a year ago and the first time i drove it i noticed that going up hills or even on level roads when i hit the gas lightly the car starts doing a rocking - like motion and on the odometer the needle starts to bob in sync with the rocking. i took it back to the dealership and they "fixed it" but it started happening again a few months back. the odometer is normally at the 2 when it bobs. Anyone know what this could be?
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  2. #2 Re: need to diagnose a problem with my grand prix. need advice. 
    Explicit_Spade
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    Default 01-24-2011
    Odometer is normally at the 2?
    Quote Originally Posted by W-Body Store
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  3. #3 Re: need to diagnose a problem with my grand prix. need advice. 
    BillBoost37
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    Default 01-25-2011
    At first I thought TCC oscilliation.. but the odo thing threw me for a loop too.
    I drink..so consider that when reading my posts.

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  4. #4 Re: need to diagnose a problem with my grand prix. need advice. 
    tayl5645
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    Default 01-25-2011
    My guess is they mean the Tach
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    Custom built Open cone intake, 15% tints all the way around, 7" touchscreen DVD player
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  5. #5 Re: need to diagnose a problem with my grand prix. need advice. 
    BillBoost37
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    Default 01-25-2011
    Quote Originally Posted by tayl5645 View Post
    My guess is they mean the Tach
    Think about where 2 o'clock is on a tach.. that worries me.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  6. #6 Re: need to diagnose a problem with my grand prix. need advice. 
    tayl5645
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    Default 01-25-2011
    Do they mean 2 oclock? Or 2K rpm? So unclear
    2005 GTP Grey

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  7. #7 Re: need to diagnose a problem with my grand prix. need advice. 
    emmaamelia
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    Default 01-25-2011
    its at 2k rpm. 2k or 250k on the tach.
    i wrote the post in a hurry, sorry i wasnt more specific.
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  8. #8 Re: need to diagnose a problem with my grand prix. need advice. 
    Bio248
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    Default 01-25-2011
    sounds like a tcc issue then. very common.
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