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chattering in duramax motor

Discussion in 'Chevy Trucks' started by ids, Jan 20, 2008.

  1. ids

    ids Junior Member
    Messages: 9

    i have an 05 duramax 3500 without dual wheels. when i accelerate from a dead stop around 1800 rpm i get a chattering from under the hood.nothing when it just idles. when the tubo kicks in the rattling goes away and returns when accelerating past 1800 rpm again. any help appreciated.