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1988 - 1998 (GMT400) Section for all discussion related to the 1987-1998 Chevrolet and GMC trucks.

94 Z71 4wd actuator blows fuse

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Old February 13th, 2019, 6:07 PM
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Default 94 Z71 4wd actuator blows fuse

My 94 Z71 keeps blowing actuator fuse when shifting to 4wd. I replaced the actuator. It works properly when out of vehicle, but when I screw it back in, the fuse blows when activated. Any help out there?
Old February 15th, 2019, 4:15 PM
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Could be a short in wiring or plugs. A faulty actuator out of the box wouldn't suprise me either. A internal short would ground out when you screw it in.

I've done away with the actuators in all my trucks and put in posi - lock cables. Much more reliable.
Old February 15th, 2019, 9:51 PM
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Originally Posted by burnhedge
Could be a short in wiring or plugs. A faulty actuator out of the box wouldn't suprise me either. A internal short would ground out when you screw it in.

I've done away with the actuators in all my trucks and put in posi - lock cables. Much more reliable.
When I had the actuator out, I clipped a wire to it and grounded it to the truck. No blown fuse

Last edited by Brian Jossart; February 15th, 2019 at 9:52 PM. Reason: Spelling




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