Thread: TC slipping during lockup

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  1. #1 TC slipping during lockup 
    GT Level Member Merlin's Avatar
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    I have had this persistent issue with my transmission that has been driving me crazy and I finally pinned down the symptoms...

    My transmission is newly built, but I have had an issue with it overheating on long trips. I have an issue with the trans will shudder sometimes. I scanned the car today with HPT and noticed a few things. During lockup the TC slip rpm will fluxuate from 70rpm to 0 and back. I also noticed that on the highway during acceleration with lockup, the car will shudder as the TC slip RPM climbs up towards 700RPM.

    I tried adjusting the duty cycle and I had no change. I suspect that my TC is fried and I need someone elses opinion before I put the cash forth to swap it out.
    Engineering the impossible.
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  2. #2 Re: TC slipping during lockup 
    GT Level Member Merlin's Avatar
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    Three days and no one has a clue or opinion on if I should change it or try something new?
    Has anyone experienced this before?
    Engineering the impossible.
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  3. #3 Re: TC slipping during lockup 
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    I'll bump you but I got nothing.
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  4. #4 Re: TC slipping during lockup 
    GTP Level Member Scimmia's Avatar
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    Does this sound like what's happening?

    TCC rpm oscillation
    2001 Buick Regal LS - Almost Stock
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  5. #5 Re: TC slipping during lockup 
    DUI BABY Bio248's Avatar
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    my car did that for quite a while before it took a dump.
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