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Thread: 4L80e won't move

  1. #11
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Sounds like its out of adjustment. Disconnect the cable and put it in park by hand and see if it locks down into park. If the prawl goes into position and it still turns then the prawl is broken or the hub it locks onto in the transmission is stripped out.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #12
    Join Date
    Jun 2009
    Location
    CA
    Posts
    23
    The pawl goes into position on the outside of the gear and locks it in place so It won't move, but further inside something must be broken because the driveshaft still turns but that gear that the pawl locks into stays still.
    1995 K2500 with '05 6.0L, XR265HR cam, 918 springs, PCM by Nelson Performance.

  3. #13
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    yeah, sounds like it needs to be torn down to see whats messed up in there.

    ATSG book says "no park"

    Detent lever = incomplete travel or misaligned
    Actuator rod = Rabbit ears bent, disconnected or broken
    Dentent spring = mispositioned
    parking prawl = broken
    prawl shaft = broken
    park bracket = bent or broken
    park bracket bolt = loose or broken
    Front internal gear = splines broken
    manual shaft = flats not parallel
    Last edited by RedHeartbeat; 03-13-2010 at 09:39 PM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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