Question about 1998 GMC Jimmy

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1998 jimmy 4 wheel drive problem

How do i replace the module under the kick plate for the 4wd. I tried a new dash switch but didn't help and I am stuck in 4 lo. it won't let me out of it. I hear the noise under the kick plate and it is a clicking noise but doesn't shift to 4 hi or 2 hi. I have to put it in neutral just to get it to make the noise.

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  • bobcat1983 Nov 25, 2008

    i bet your right! Before i got it stuck in 4 lo I did hear a strange noise coming from the right front tire area like a loud hum. I stopped the car and turned it off then the noise stopped. That happened when I was driving in 2 hi on the expressway. It happened a couple of times. Probably the transfer case motor?

    Maybe I should just replace the motor.

  • bobcat1983 Nov 25, 2008

    IT WAS SO simple! The ATC fuse needed replacing! Go figure!

  • fsaxer Dec 10, 2008

    2005 2500hd won't shift in 4 x 4 when moving just grinds

  • Anonymous Mar 19, 2014

    has 1 switch on dash for hi & lo 4wd


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Are any of the lites on the switch flashing? you may have a sticking 4x4 shift motor on the transfer case. with a helper, key on someone under vehicle at shift motor, one operating the 2wd button, give shift motor a rap with small hammer on metal portion of shift motor to see if you hear it trying to work. to access control module, remove plastic right kick panel and its right there. remove connector and inspect for corrosion or bad connection. also try park and neutral, may even have to be rolling a bit to disengage. let me know how you make out and will help further if i can. do you know what transfer case system you have? np1 or np4?

Posted on Nov 23, 2008

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SOURCE: my jimmy's 4wd acctuator seems

two common things with the push button 4x4 the button panel itself or the encoder motor loose its marks usually the buttons will all flash if the panels bad and it wont go into four wheel high if the encoder motor goes bad but if these dont sound like your symptoms you might have a bad transfer case module hope this helps good luck

Posted on Aug 22, 2010

  • 67 Answers

SOURCE: 2000 jimmy 4wd Hi, auto 4wd and 4wd Lo indicator

mine has done that since i bought it. i was told by 3 top rated techs this was a normal process when it was shifting from one to the other.

Posted on Oct 13, 2009

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Posted on Jan 02, 2017

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