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  1. #1

    Default clunk when i accelerate

    09 silverado ltz 1800 miles. makes a clunking sound when i start from dead stop. Almost feels like a broken motor mount only its in the rear. like something is lifting up. weird.

  2. #2

    Default

    shouldnt be at this mileage but check ujoints, or since it is under warranty have them look at it.
    David
    2004 Silverado 2500 Crew Cab 4x4, AMSOIL EA air filter, Granatelli MAF sensor, Throttle body spacer, Magnaflow exhaust (true dual to 2 in 1 out muffler), 6" ProComp lift (add a leaf and 5" superlift rear block), Bilstein shocks, 35's (Cooper Disoverer ST) and 4.10 gears, Rhino Liner, EGRUSA fender Flares and widow visors, extended stainless steel brake lines, firestone airbags w/onboard air compressor, Pioneer Avic X940BT navigation, Accel backup camera.
    http://www.gmtruckclub.com/forum/sho...Silverado-2500
    1960 Land Rover Series II 88
    2001 Pontiac Sunfire
    2013 Toyota Avalon Limited (Wife's Car)
    NRA Life Member

  3. #3
    Sr. Apprentice lube70's Avatar
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    Jan 2009
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    Northern NJ
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    48

    Default common

    The slip yoke on the driveshaft is what is making the noise...nothing wrong...You wan eliminate it by bringing it to chevy and telling them to do the TSB on the driveshaft noise.

    Then no more noise!!!

    Don
    2006 Chevy Silverado crew cab 1500

  4. #4

    Default

    they had to loosen and retorque all leaf spring mounting bolts. noise all gone . tried slip yoke didnt work

  5. #5

    Default

    do you know what the bolts on the leaf springs are supposed to be torqued to?
    Jaridd - Texas

    01 Chevy Silverado z71

  6. #6

    Default

    look closely at your leaf spring pack, they can crack and cause clunking, but when sitting in the driveway crack can be hard to see. Seems unlikely on such a new truck, but along with other good suggestions thought it'd be worth looking.

  7. #7

    Default

    ya i have a 97 z71 4x4 and i have all kinds of clunking noises lol. i really wish it was warm enough and more light in the day to check everything out...
    1997 K1500 Silverado 4X4. Black Exterior, grey/black interior. 35X12.50X15 wheels and rubber, ProComp 6inch lift 6 shocks in the front 2 in the rear, 3 inch body lift, a few cosmetic mods. Nothing major. Custom leather interior, and stereo upgrade is the future mods.


  8. #8

    Default

    mine did this too..........they had to replace the output shaft.

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