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GMC Truck
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1989
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S15/T15 4WD P/U V6-262 4.3L
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Repair and Diagnosis
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Wiper and Washer Systems
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Testing and Inspection
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Initial Inspection and Diagnostic Overview
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Preliminary Checks
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Without Pulse
Without Pulse
The System Diagnosis procedures are for diagnosis of the system with a test light. If the Universal Wiper System Tester J 25079-B is used, follow the instructions contained in the tool in order to diagnose the system.