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. Some vehicles were recalled for this problem and some were not. You will need to check with your local dealer to find out if a specific vehicle was included.
Windshield Wipers May Fail Due to Faulty Wiper Motor Control Board on Chevrolet S10 Blazer
Average mileage: 50,000 (50,000–50,000)
1 model year affected: 1994
2 people reported this problem
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GM had a recall on this problem. They replace wiper motor...problem is bad solder joint on motor circuit board at wiring plug connector. Five minute fix.