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4wd not engaging

Discussion in 'General Chevy & GM Tech Questions' started by split2303, Feb 27, 2010.

  1. split2303

    split2303 New Member

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    I have a 1995 gmc sierra and the 4wd is not working. I changed the front diff actuator but it did not solve the problem. The actuator is good (tried it in a buddy's truck) the front drive shaft does spin when the transfer case is engaged (I can also hear the tranfercase gear down). I did get the tranmission rebuilt a couple of months ago and after this is when I noticed it was not working. 4x4 lights do not illuminate when I engage into 4hi or low (I have a floor shifter). I tested the wire that connects to the actuator with a voltmeter and it showed no charge. I then traced the wire to the top of the transfercase and tested both the end of the wire and also where it plugs into the transfer case...no charge shown.
    #1
  2. cesolo

    cesolo New Member

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    I'm experiencing the same problem and I have detected that the 4WD fuse in the fuse panel is blown and a new fuse blows every time I try to engage the 4WD. I don't know where to go from there.
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