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Old 12-11-2008, 09:18 AM   #12
MT-2500
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Re: 98 Jimmy stuck in 4WD - Can't go to 2HI

Checko for codes and post back codes.

In 4WH and 4WL the front axel should have vacuum and be be engauged.

If transfer case is shifting to 2W there is a vacuum switch on the transfer case that should shut off vacuum to front axel and the transfer case computer will turn off all electrical circuits for 4W.
In 2W the 2W button should light up and stay on.
Does yours do that?
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