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Thread: 4x4 low. tranny wont shift

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  1. #1
    Join Date
    Jul 2010
    Location
    Douglasville Ga
    Posts
    224
    Tanz, sorry man, but there has never been and never will be a factory auto trans, 4lo equipped vehicle that doesn't shift thru all forward gears while in 4lo.

    Sounds like a calibration issue to me as well.

  2. #2
    Join Date
    Jul 2008
    Location
    Racoon Twp., PA
    Posts
    1,572
    Meh, wrong if I'm wrong. I will still sleep tonight.

    Maybe i too had a bad ground from on the position switch.
    2013 CC 5.3
    81 C10 LS1 project

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