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  1. #1
    Member 99transamC/FIA's Avatar
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    99 TRANS AM

    Exclamation 1998 ls1, converter won't stay in lockup

    have vigilanty 3,200 stall converter won't stay in lockup. Any ideas?

  2. #2
    Senior Member
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    I've had a used Vig 3200 (out of my brother's car) for years in mine and never had a problem with it. Is it newly installed? If it's randomly unlocking at steady throttle I'd look for a misfire - any codes?

  3. #3
    Retired NOT tired SteveC's Avatar
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    SOM
    2001 Z28 (Sara)

    I have a Y3000 coupled to 3.73 rearend gears, and after the install, I had lock and unlock problems until a dyno tune addressed these issues.

    SteveC

  4. #4
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    misfire codes more than likely if it's locking and unlocking randomly. You can get it tuned out or go get a crank relearn done.

  5. #5
    Senior Member bills98ta's Avatar
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    1998 Trans Am

    One more thing to check, the brake light switch... Ever notice while driving, if you tap the brakes, it unlocks the converter...
    Just another thought, Good Luck !!!

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