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Home >> GMC Truck >> 1991 >> G 3500 1 Ton Van V8-454 7.4L >> Repair and Diagnosis >> Wiper and Washer Systems >> Testing and Inspection >> Front Wiper >> Without Pulse >> Wipers Will Not Shut Off

Wipers Will Not Shut Off

1. Defective motor park switch.
2. Defective wiper switch.
3. Grounded wire between motor and wiper switch.

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