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electronic 4wd on 93 blazer doesn"t work properly


JERKY420
02-17-2004, 07:30 AM
I have been working on a 93 blazer 4wd system and it goes into 4high but jumps out into nuetral in the t-case but 4low works fine. It has a pushbutton 4wd and all the lights work and you can hear the motor engage and all sounds fine. Any help would be appreciated.
rlith
02-17-2004, 08:22 AM
1 of 4 things... Encoder motor is bad...(too weak to fully engage), Vaccum switch on side of transfer case. You're low on the transfer case fluid.... Or a worn out transfer case...

Start in that order...

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