4x4 problem

Discussion in 'GM Powertrain' started by jailbird441999, Apr 9, 2009.

  1. jailbird441999

    jailbird441999 New Member

    ok well this problem puzzles me. I have a 94 chevy 2500 5.7 aka 350 5 speed. So the girlfriend and I were driving down the free way going 65 or 70 and i hear this humming noise in the front end. First thought check gages they all seemed fine. I look down and my 4x4 light is on but the shifter is in 2 wd i pull off to the side of the road and i hear a bang noise and the humming goes away. From what i could tell my hubs locked in. what puzzles me is why or how they could have if my truck is in 2wd. so i turn off the truck to reset the computer and the light will not go off tried it like 5 times. So i pulled the fuse out light goes off and hubs unlock drives like normal again. My first thought is the hubs but they lock and unlocked so they are working. check my shifter and everything seems to be in the spot it should be. and the shifter is nice and firm no play. So on this model does it have a senser on the shifter or something. I'm stuck please help
  2. azdrtdog

    azdrtdog Epic Member 5+ Years 100 Posts

    Yes sir u have plugs on that t. case some where put the fuse back in and unplug them one at a time till u hear the front end unlock then replace that switch
  3. jailbird441999

    jailbird441999 New Member

    thanks man you know i would have never thought of a idea like that to solve my problem. so this weekend i will be hunting for a switch lol i will post outcome.
  4. jailbird441999

    jailbird441999 New Member

    so pluged the fuse back in and 4x4 will not engage. some have said stringer in the t case other said a senser any ideas?

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