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Thread: '05 GTO thumping sound when starting off

  1. #1
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    '05 GTO thumping sound when starting off

    My GTO has the auto box in it and is making a rapid thumping sound on pulling away from stop. Seems to feel it less with traction control off. I changed out the LSD fluid and additive. Trans fluid looks and smells OK. Can't really tell what part of the drivetrain it's coming from. Any ideas???
    TIA!
    Phil

  2. #2
    Suffering ends when craving ends... Hyperion's Avatar

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    Drive shaft. Check and make sure the "bearing" in the middle of the two piece drive shaft hasn't come apart and vibrating until it gets moving fast enough to balance out.

    Sent from my SM-G955U using Tapatalk
    Last edited by Hyperion; 08-19-2019 at 03:44 AM.

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