Question about 2003 Chevrolet Silverado 2500HD
Wipers fail to work intermittently. Have replaced pulse board and relay. No change. No wiper/washer function at all and then starts randomly working again with no apparent problem.
On my silverado 2003 the intermittant wiper/washer turned out to be a loose fitting fuse. The fuse is located on the outside face of the dash, you need to open the drivers door to remove the cover to acess the fuses. locate the fuse on the diagram, and wiggle it with your finger while the unit is malfunctioning to see it that is the problem. I bent the fuse blades slightly apart before reinserting the fuse and it hasn't been a problem since
Posted on Jan 29, 2009
I own the same year and model truck, but haven't noticed that issue. I did own an '88 k2500 and had that problem. I know from my job experience that those particular trucks had an issue with the wiper motor ground path being faulty. You could check to make sure that the ground wire in the plug is actually "grounding", or the quick fix at least used to be, run a separate ground wire from the motor assembly to the body. There was also an issue with the control board on the motor, which I gather you've replaced. As I've mentioned I haven't encountered that issue with the later model trucks yet. Aside from the ground issue, it may be a faulty multifunction switch (turn signal lever/ wiper switch/ hazard switch assembly) I hope this helps.
Posted on Nov 13, 2008
Try to any electricl loose contact electricl wiring circutry. tha may be.
Posted on Nov 12, 2008
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Posted on Jan 02, 2017
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