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1999 Chevrolet Express - Page 5 Questions & Answers
Wipers only work on high speed. washer pump work
Hello, this is a very common problem for Chevrolet. Your wiper motor control module is bad. It's mounted directly onto the wiper motor. On some models you can replace the "pulse board" inside the control module. If not you need to replace the entire wiper motor control module. It depends on your level of skill and parts availability.
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