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 MANUALSFORD1985ECONOLINE E250, VAN WINDOW EXTENDED, 4.9 Y, C6REPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTMIRRORS - POWERTESTINGONE MIRROR DOES NOT FUNCTION
1985 Ford Econoline E250, Van Window Extended, 4.9 Y, C6
One Mirror Does Not Function
1985 Ford Econoline E250, Van Window Extended, 4.9 Y, C6SECTION One Mirror Does Not Function
- Working underneath mirror, remove head of plastic rivet, using a 1/4" (6 mm) drill. Remove rivet stem remnants. Remove screw from cover, remove cover, and disconnect plug. Check function of mirror by connecting 12 volts to terminals of wire plug.
- Yellow and Green wires provide up-down movement; Blue and White wires, right-left movement. If mirror does not function, replace motor drive. See MIRROR GLASS & MOTOR DRIVE under REMOVAL & INSTALLATION.
- If mirror functions when tested, but does not operate when connected to feed wire, remove left door panel. Test feed wire for continuity between switch plug and mirror plug. Repair or replace wiring, if necessary. If mirror functions through feed wire, but fails to respond to switch operation, replace switch.
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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.