Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1624 (WIPER SYSTEM & WASHER SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESWINDSHIELD WIPER SYSTEM MALFUNCTIONCOMPONENT TESTINGWINDSHIELD WIPER MOTOR DYNAMIC TEST
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Windshield Wiper Motor Dynamic Test
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Windshield Wiper Motor Dynamic Test
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the windshield wiper motor.
- Install a 25-amp fused jumper wire between B+ and the control terminal 1. Install a jumper wire between the terminal 5 and ground.
- The wiper motor should be in low speed mode.
- If the wiper motor is not in the low speed mode replace the motor.
- Install a 25-amp fused jumper wire between B+ and the control terminal 4. Install a jumper wire between the terminal 5 and ground.
- The wiper motor should be in the high speed mode.
- If the wiper motor is not in the high speed mode replace the motor.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.