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Thread: 5.3l swap into obs transfer case

  1. #1
    Join Date
    Dec 2014
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    4

    5.3l swap into obs transfer case

    '01 5.3l with tranny and transfercase dropped into a 99 tahoe
    Hvae a painless wiring harness - most of it is installed now
    Have the computer flashed already

    My next question is the new harness hass no connections going to the transfer case. so im assuming that i will be using the original wires from the old harness because the switches for it are in the cab and dont go through the new computer,,, is this correct?

  2. #2
    Join Date
    Dec 2014
    Posts
    4
    my other question is for the fuel pump wire .. i am running the original fuel pump since i read it should do fine with the stock motor. the only thing ineeded to do is change the control wire from the old computer to the new one.. there is a wire provided for it in the new harness i just want to make sure im cutting the right wire.

    on this diagram i thought i was supposed to take off the Drk Grn/Wht wire that says fuel pump but now im 2nd guessing myself ... any help on this

    this wiring diagram is for a 99 tahoe btw
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