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Thread: 4l80E PROBLEMS. CONVERTER, CLUTCHES, LOCKUP? WHO KNOWS WHAT IT IS?

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  1. #1
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Tear it down and check it out. It may be a sticking pressure relief valve hanging open. Take it to a transmission shop and have them diagnose it.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #2
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Tough to tell from that post. Someone here or at a trans shop needs to experience the issue.

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