Thread: transmission clunk

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  1. #1 transmission clunk 
    GXP Level Member Grimsin's Avatar
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    whenever ever I got from park to drive it clunk or park to reverse clunk or reverse to drive clunk or drive to reverse clunk...lol
    its not a hard clunk its just noticeable and never used to do this, transmission works fine in every other aspect
    im guessing transmission mounts? car has 136 000 kilometres now

    3.8l N/A POWA! :4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
    My Car:http://www.grandprixforums.net/threa...2005-Impala-LS
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  2. #2 Re: transmission clunk 
    Killa Bee Scottydoggs's Avatar
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    lower mounts i bet. pop the hood, then shift it in and out of gear while watching the engine, it should only move maybe 2 inches each way. if more the lowers are bad.

    flipping the dog bones also makes it tighter.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: transmission clunk 
    GXP Level Member Grimsin's Avatar
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    ok im guessing its them then, my cousin rocked the engine back and forth a month ago and said my mounts were toast. but wasnt clunking then. guessing its getting bad
    I flipped the bones years ago... looks like i should go mount shopping.

    3.8l N/A POWA! :4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
    My Car:http://www.grandprixforums.net/threa...2005-Impala-LS
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  4. #4 Re: transmission clunk 
    Killa Bee Scottydoggs's Avatar
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    if they are bad enough the pass side of the engine will shift in the bay. mine made no clunk but boy was the engine sliding back and fourth.

    looked like this when it came out lol


    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  5. #5 Re: transmission clunk 
    GXP Level Member Grimsin's Avatar
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    ya i can gran the UIM and rock the engine back and forth pretty easily.

    3.8l N/A POWA! :4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
    My Car:http://www.grandprixforums.net/threa...2005-Impala-LS
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  6. #6 Re: transmission clunk 
    Killa Bee Scottydoggs's Avatar
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    you got that n/a strut bracket still? maybe its broken?

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  7. #7 Re: transmission clunk 
    GXP Level Member Grimsin's Avatar
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    strut bracket?
    I know somethings but consider myself a newb still lol.

    3.8l N/A POWA! :4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
    My Car:http://www.grandprixforums.net/threa...2005-Impala-LS
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  8. #8 Re: transmission clunk 
    Killa Bee Scottydoggs's Avatar
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    check the pass side dog bone mount to the engine, those n/a brackets snap all the time.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  9. #9 Re: transmission clunk 
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    ok will do.

    3.8l N/A POWA! :4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
    My Car:http://www.grandprixforums.net/threa...2005-Impala-LS
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  10. #10 Re: transmission clunk 
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    not broken both brackets are good

    3.8l N/A POWA! :4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
    My Car:http://www.grandprixforums.net/threa...2005-Impala-LS
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  11. #11 Re: transmission clunk 
    Killa Bee Scottydoggs's Avatar
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    off to buy lower mounts then.

    should you come across a l67 coil bracket, buy it and put it in your car. they never break.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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