Question about 1990 GMC C1500

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4x4 doesn't go on

I have a problem whith my truck

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  • suechurcott Oct 22, 2008

    the 4x4 seems to go on and off on my 1997 f-150, it makes a clicking sound at the switch on the dash, the 4x4 indicator light comes on and then won't go off until you turn the truck off, please help!

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I had the same problem on a 90 gmc 4x4.  I found that the wires for the auto locking hubs run close enough to the exhaust on the passenger side that they melted and shorted out the 4wd fuse ( yes there is a fuse marked 4wd in the fuse box.)  If this fuse is blown and when you replase it blows again this could be the problem. Good luck

Posted on Dec 13, 2008

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What is the problem with your truck?

Posted on Oct 06, 2008

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