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  1. #1
    Jr. Apprentice
    Join Date
    Jan 2010
    Bountiful, Utah

    Default 4X4 issues after engine/trans rebuild

    I had to pull and rebuild my engine and trans a bit ago, and ever since it was all put back together I have had this issue. I am assuming we missed a connection somewhere, just hoping somone can point me in the direction.

    It is a 96 Tahoe

    When I activate my push button 4x4, I hear the T-case engage, but the light on the dash blinks non-stop and I get nothing from the front wheels. If I am correct the front axle has a solenoid that is air powered to lock it in, is this my issue?
    96 Tahoe
    Flat tops
    LT4 cam
    2200 Stall
    Built trans
    3" exhuast
    Hypertech programmer
    255/70/17 BFG mud terrains

    And after all that it is still SLOW!!!!

  2. #2


    Yes, there is a CAD (Center Axle Disconnect) on the front differential. I wouldn't call it air powered, but I don't know if '96 still used the old thermoelectric style CAD or if they had started using the newer all electric CAD (my '98 uses the latter). Checking to make sure the CAD is plugged in and working sounds like a good place to start.
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

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