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 MANUALSMERCURY1991TRACER BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 148 (WIPER/WASHER SYSTEM - FRONT)TESTINGWIPER MOTOR TEST
1991 Mercury Tracer Base, 4D Sedan, Automatic
Wiper Motor Test
1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Wiper Motor Test
WARNING: This page is about a different car, the 1994 Mercury Tracer and 1994 Ford Escort. However, it is still accessible from the selected car via links, so may be relevant.
- Disengage wiper arm linkage and wiring harness from wiper motor. Connect jumper wires from both terminals for Black wires on wiper motor to ground. Connect fused jumper wires between positive battery terminal and motor terminals for Blue and Blue/White wires. Motor should run at low speed.
- Disconnect fused jumpers. Reconnect them to motor terminals for Blue and Red wires. Motor should run at high speed. Replace motor if operation is not as specified.
RENDER: 1.0x
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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.