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Re: 1996 jimmy 4.3L 4x4 switching problem not going back to 2wd
I used to have a 96 blazer that did the same thing. Mine was a wire harness issue after getting the trans replaced. Check all fuses and then check if wire harness is ok from the transfer case to the switching module. My truck used to switch to 4 hi and then pop the fuse whenever it got wet. I believe the switching motor is a 25 amp fuse but havent had that truck in 5 years so I may be wrong. look it up in a service manual or in the user manual. Hope that helps. You are going to get dirty trying to find the problem on this.
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