Chevy 4x4 problem


Asked by Feb 10, 2015 at 10:02 AM about the 1994 Chevrolet C/K 2500 Silverado Extended Cab SB

Question type: Maintenance & Repair

I have a 94 chevy 4x4 with a manual trans. It will not engage into 4x4 .When you put it in 4x4 the front drive shaft is locked in. So I checked the fuse in the fuse box it was fine.Then I changed the Actuator it did not fix the problem. I then cleaned the conections at the front axle still wont engage.  What else can it be?

2 Answers


If anyone is interested on this truck it turns out there is a switch on the top of the Transfer Case that sends the current from the fuse to the Actuator. There was no mention or diagram of this in the Chilton's book. This cost $17 at AutoZone and fixed the problem. They only had a listing for two switches and where they were located, but not what they did ( The one on the top is for the 4x4 and the one on the tail shaft is for the speed) My transfer case is the New Process 241C. So in the end I spent $89 on an Actuator that wasn't the problem but in the end I got it fixed , so I hope this can help out someone else with this problem.

1 out of 1 people think this is helpful.

Thanks, I'll check that first before replacing actuator.

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