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94 GMC Jimmy 4x4 4LO works but not 4HI...


Slayde11
02-15-2007, 12:39 PM
I need help. I dont know what else to do. I have replaced the module, the switch, the vacume switch, and the encoder motor. 4LO will engage but not 4HI I dont have a clue how to fix it now that I have done all of that. Please help.:banghead:

Slayde11
02-19-2007, 10:56 AM
Well I am a complete dumbass..... I didnt reset the computer after installing the new encoder motor.... to reset the computer you must disconnect the battery for 10 min reconnect it then cycle the key on and off 5 times..... simple now my 4x4 works in HI and LO and my shift on the fly capability is restored =)..... buuut I am still a complete dumbass I hope this helps somone and makes me feel better...

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