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need a little help

This is a discussion on need a little help within the General Help forums, part of the LSx Technical Help Section category; i have a 99 trans am that has a rattle, squeak, knock maybe that only does it when i take ...

  1. #1
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    pewter
    99 trans am ws6

    need a little help

    i have a 99 trans am that has a rattle, squeak, knock maybe that only does it when i take off in first gear. after that the car is fine.

    dont know what it is and its driving me nuts. any suggestions

    car has 140k miles

    it sounds like a bad bushing but when only does it when i take off. i tried replicating the noise by bouncing the the car and nothing

  2. #2
    Super Moderator
    pajeff02's Avatar
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    Black & Blue
    '02 WS.6 / '07 Suburban

    First two things I would look at are the exhaust where it goes over the rear axle and the undercar heat shields.

  3. #3
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    pewter
    99 trans am ws6

    ill check it out but the noise seems to be coming from towards the engine, transmission area

  4. #4
    None Shall Pass Knight's Avatar
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    Black
    99 WS.6 - Modified

    Might want to check the motor and tranny mounts, followed by the torque arm.

  5. #5
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    If you can pinpoint it to LF or RF, it could be a shock or sway link problem. But those aren't super common. If its from under the shifter area, check the trans mount and torque arm mount at the trans. If its under your feet or seat, check the exhaust hitting the floor. Stock exhaust usually doesn't do that but aftermarket exhaust is well known to hit the floor.
    Also, list all your mods to the car.

  6. #6
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    pewter
    99 trans am ws6

    thanks for the suggestions.

    mods are

    koni adj shocks
    eibach springs
    umi adj rear lower control arms
    umi adj panhard bar.

    all these were done about a year ago.

    this noise comes from shifter, behind the radio area

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