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Thread: silverado thump

  1. #1

    Default silverado thump

    Hello everyone. Glad I could find a place just for chevy and gm trucks. I have a 2008 silverado 1500 ltz 2wd. I am haveing a problem with a mysterious thump. It happens when I come to a complete stop then let off the brakes. Sounds like something is binding then letting go. Any ideas? Dealer can't seem to figure it out.

  2. #2

    Default

    sounds like the torque converterlocking and un locking. could be u joints are going bad. grab the drive shaft and shake it hard, see if it moves, if its solid, my guess its just the torque converter. check all brackets and connections under neath and see if anything is loose.

    Alex


    2011 GMC Sierra SLE 5.3 Z71 4X4 Stealth Gray Metallic / 2004 Chevy Impala LS 3.8 Cappuccino

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  3. #3

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    Welcome to the G M T C ! On my '96 Silverado, there was a "thump" that was diagnosed as the drive shaft "splines" binding up in the "tailshaft" of the tranny. You might get more info' in one of the "Tech'" forums. Lots of good folks willing to help out!


    2010 Z/71 Colorado C/C
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  4. #4
    Legend
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    Welcome aboard and good luck getting to the bottom of the thump.
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  5. #5
    Legend

    Red Z71 Max's Avatar
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    Welcome to the Club!!!

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  6. #6

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    Thank you everyone. Glad to be apart of the club.

  7. #7

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    My truck 2012 2500 Silverado 4x4 HD Duramax /Allison has been doing this at Random since I bought it. Anyone have any new news on this? I have about 8k on it now and it is still random...
    Buy Made in USA, The job you save just might be your own.

  8. #8
    Sr. Engineer Dana W's Avatar
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    Default

    Tighten up the spare tire, or maybe if you had drum brakes, and humid weather, it'd just be the shoes releasing off the drums.

  9. #9

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    Welcome to the Club! And X2 what Retired 2001 stated.
    Last edited by Goldie; 08-19-2013 at 03:25 PM. Reason: misspelling

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