98 push button 4wd

Discussion in 'Transfer Cases' started by 98joe, Dec 20, 2016.

  1. 98joe

    98joe Newbie

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    20161204_094216.jpg Hello I need your guys help I am new here. But love my 98 Chevys I'm on my third one.. the one I currently have is a 98 GMC Sierra extended cab four wheel drive K 1500 with push button 4 wheel drive. It's done this three times over the last week it will put itself into 4hi while driving down the road at 50 miles an hour (or any speed) i will hear a clunk and look over and the four high light will be lit up. Press the 2hi button goes back to 2wd for aday or so till it does it again Do you think it could be the selector switch or somthing else? Thank you
     
    Last edited: Dec 20, 2016
  2. 98joe

    98joe Newbie

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  3. 98joe

    98joe Newbie

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    I picked up a 4 wheel drive selector button at the junkyard have got a 130 miles on it seems to be okay so far my fingers are crossed
     
  4. 98joe

    98joe Newbie

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    Okay so I replace the push button switch and the transfer case control module the truck goes 100 miles or so before I'll do it again I noticed however when it puts itself in the 4 wheel drive the 4 high light comes on in the for low light will blink is this some type of code or somthing? any help would be appreciated!!!
     
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    DieselDetroit I'm Awesome

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  6. 98joe

    98joe Newbie

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