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I have a 93 gmc 4x4 it keeps blowing the fuse for the 4 wheel drive when i put power to it

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george parkes

  • 980 Answers

SOURCE: my 4x4 fuse keeps blowing.

Try this,on the front axle there is an actuator for the 4x4,unplug it and try to engage 4x4 with it unplugged,if the fuse doesn't blow,actuator is bad.
Also look at the wires going to the actuator they get damaged from brush and things.

Posted on Feb 09, 2011

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johnjohn2

Johnny Brown

  • 5763 Answers

SOURCE: Blowing 4x4 Fuse, when put into 4 wheel drive

you may have a bad frt diff seliniod, try unpluging seleniod and putting into 4wd, if fuse doesnt blow then you know its the seleniod.also take a look at the wiring at the transfer case for any chafed wires,some of these trucks use vaccum also to operate 4wd check the vacuum switches for shorts,ive enclosed a wiring diagram to help you ,hope this helps ,good luck.04178a0.gif

Posted on May 30, 2010

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Also look at the wires going to the actuator they get damaged from brush and things.

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