Mechanics

CHEVY 4WD FUSE KEEPS BLOWING

1994 Chevrolet Silverado

1994 Chevy Silverado V8 Four Wheel Drive Automatic 156000 miles

When I attempt to engage 4x4 the fuse blows and wont allow it to lock it. What would cause that and how can I fix it?
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1994chevy
February 20, 2008.



The front differential actuator shorts out on these trucks. Try unplugging the 2 wire plug that goes to the front diff actuator and see if the fuse still blows, if it does not then you know the actuator is no good.

Tiny
Mastertechtim
Feb 20, 2008.
The actuator is located on the front axle right?

Tiny
1994chevy
Feb 20, 2008.
Yes its located on the front axle. It has 2 wires coming out of it. The actuator screws into the front diff, it has a huge 1 1/16 spot for a wrench or you can unscrew it with a big pair of channel locks.

Tiny
Mastertechtim
Feb 20, 2008.
OK I know what you are talking about. Thanks alot for the help, I will give it a shot. By any chance would you know what a new one would cost if I had to replace it?

Tiny
1994chevy
Feb 20, 2008.
They have since updated the part because of so many problems. The new kit comes with a wiring harness that has to be installed and I think it cost about $150-175 for parts. If you look around you might be able to find the exact one you have that will unscrew and plug right in for about $100

Tiny
Mastertechtim
Feb 20, 2008.
I unplugged the actuator and it still blows fuses on my 1994 chevy silverdo

Tiny
Srg200159
Oct 30, 2012.