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Thread: Gm trans issue.

  1. #1
    Join Date
    Dec 2017
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    wandin nth vic
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    Gm trans issue.

    Hi all. 2004 td6 with the troublesome Gm trans. Serviced approx 20k ago with nothing to report . Not too long after i started getting what i would call the torque converter locking and unlocking when any sort of load was sensed .altho at times would hold top gear at low rpm beautifully. Asked the tranny boys about oil used and the issue and response was "yeah they all seem to do that " Should have seen that coming . Anyway over the last week or so i have had a noise from the trans that i can only describe as a dud bearing on a viscous fan . When engine is warm on takeoff i get this almighty howl consistent with engine revs and if i stay at pace it will fade out and slow down and dissappear (just like a fan would ) but i found if the noise is present i can select neutral and hold revs and noise is gone . Drop into drive and its back . Havent been to trans shop yet but i can guess what they will say . Sorry about the long bow.Any ideas ?

  2. #2
    Join Date
    May 2006
    Location
    Ulverstone,TAS
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    1,475
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    I'd say at a rough guess, its on the way out.

    Rebuild is the only solution.

    Others will say who is good trans people in Melbourne, but I know that Rhys @ Col Voss Auto Trans P/L (info@colvoss.com.au or 0299074486) in Sydney is excellent regarding the GM box.( I had mine done by him a few years ago now).

    Hope you got some $$$$ saved up for it.

    disco gazza

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