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 MANUALSCHEVROLET1990LUMINA APV V6-191 3.1LREPAIR AND DIAGNOSISWIPER AND WASHER SYSTEMSWINDSHIELD WASHER SWITCHTESTING AND INSPECTIONFRONTINITIAL INSPECTION
1990 Chevrolet Lumina APV V6-191 3.1L
Initial Inspection
1990 Chevrolet Lumina APV V6-191 3.1LSECTION Initial Inspection
PROCEDURES
The following procedures assume that the service technician has checked:
^ The continuity of circuit harness wiring.
^ That the wiper motor-to-frame bracket mounting screws are tight.
^ Circuit fuses.
^ That the washer hoses are clear, not kinked, disconnected or broken.
^ That the washer reservoir is full.
NOTES:
If the windshield is not clear after using the washer, or if the wiper blades chatter when running, wax or other material may be on the blades or windshield.
^ Clean the outside of the windshield with Bon Ami, a non-abrasive cleaner. The windshield is clean if beads do not form when rinsing with water.
^ On a clean windshield, water will flow off in sheets and will not bead. Multiple cleanings may be required to remove a buildup of wax or other foreign material.
^ Clean the blades by wiping with a cloth soaked in a winter concentration of washer solution. Do N0T attempt to clean blades with any petroleum base cleaner or solvent. This may cause permanent damage to the rubber element of the blade. Rinse the blades with water.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.