I've got a 1988 S-10 pickup. Some time ago the windhield washer motor quit working. I verified that the washer motor was good by hot wiring it directly to the battery, so I changed out the windshield washer switch in the turn signal stalk. The washer worked for a few days then quit. I then swapped out the control PC board on the wiper motor, again it worked for a few days then quit. I'm frustrated. The wiper motor works fine. Does anyone have any suggestions about where the problem may be.
Your input would be greatly appreciated.
Thanks.
Andy