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Thread: 4L80E shifting problems

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  1. 10-13-2008 03:47 PM #1
    GasGuzzler's Avatar
    GasGuzzler
    GasGuzzler is offline Pants on the ground
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    It's got to have something to do with the tune compared to switching from 2WD to 4WD I'd bet.
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  2. 10-13-2008 11:27 PM #2
    Podunk's Avatar
    Podunk
    Podunk is offline Member
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    So do you think the guy I originally sent my PCM to did something wrong?
    A drunk mans words are a sober mans thoughts

    1984 GMC Sierra Classic 3/4 ton 4x4
    Dropped in 6.0L LQ4 and 4L80E transmission out of a 2000 Chevy Silverado 2500 HD
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