How to Diagnose 1988 Jeep Cherokee Wiper Malfunction
Diagnosing a Jeep Cherokee's wiper problems are no different than most other vehicles equipped with the element shedding devices. The Cherokee has two windshield wipers, carefully calibrated to wipe in unison that are powered by a small motor. When troubleshooting a malfunctioning set of windshield wipers focus on three basic areas: look at the windshield wipers themselves, the wipers attachment arms, and the motor that powers the wipers.
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Instructions
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Turn the Cherokee off and go to the windshield wipers. Pull the arms up so the wipers stick out at a near perpendicular angle to the windshield. Wipe off the surface of the windshield and wipe away any grime, ice or grit from the rubber on the wiper blades. Turn the ignition key to neutral and turn on the wipers.
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Turn the ignition back to the off position and return to the wipers. Tighten the attachment screw at the arm. This is typically a large brass or gold colored screw housed inside the wiper attachment arm coming out form the hood. The wipers will not move if the screws are loose or have fallen out. Tighten then turn the ignition to neutral and turn the wipers on.
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Turn the wipers on and go open the hood. If the wipers are not moving listen for the sound of the electric motor that powers the wipers. If the motor is not working, look to see if the connecting wires have fallen out. Unscrew the set screws and rethread the wires. Try the wipers.
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Turn the lights or radio on in the Cherokee to verify the battery is powered and working. If yes, the wiper engine is blown and needs to be replaced.
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References
- Photo Credit man working on car image by palms from Fotolia.com
