Question about 1999 Chevrolet Silverado 1500
You need to look for a broken ground wire to the left side of the truck,front or back.One of these is broken or corrode enough that the circuit is grounding through the headlight filament and it will get worse when the lights are on because they will be using up the ground to keep themselves on.If need be you may have to run your own new grounds to either the front or the rear,which ever has the bad ground condition.
Posted on Oct 06, 2010
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Posted on Jan 02, 2017
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