2002 GMC Envoy Q&A
2002 GMC Envoy Question: windshield wiper problem
might need a wiper motor or could have loose bolts or somthing with the wiper arms broken by motor - Visitor
I had the same problem except that the intermittent would work properly occasionally. I disconnected the motor connector plug and inspected the motor pins. A corrosion had built up (a chalky appearance) on the pins. I cleaned the pins using a burnishing card and the wiper intermittent is now working properly. - Visitor
On vehicles with intermittent windshield wipers, the wiper motor circuit board may fail and cause the wipers to stop working at times. Replacing the circuit board should resolve the issue. So...
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