Don't forget to look for the headlight relay.
I had the same problem 1998 ford ranger. left headlight very dim. right head light worked normal. pull back for high beam flash left dim headlight would go out. put on high beems left light got even more dim. trouble shot wires and replaced blinker/high low beam/whiper unit didn't fix. replaced headlight didn't fix. looked at wireing harnes connecter that conects to headlight bulb and center (black Wire) female contacts was open more than the others. (was making weak contact (ground)
FIX:::: SLIGHTLY BENT BLADE ON HEADLIGHT TO MAKE BETTER CONTACT WITH WIRE CONECTION WITH WIDER FEMALE CONTACT RECPTICAL. HEADLIGHTS BRIGHT AS EVER AGAIN. PS ALSO PUT DIELECTRIC GREASE IN CONTACTOR.
HOPE THIS HELPS
The only thing that all of your problems have in common is the light switch and the dash wiring harness. The stereo is linked to the light switch because of it's illumination feature' You need to test the light switch with a test light by probing the wires at it's plug.
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1991 Ranger 2.9L
Headlights, taillights and parking lights stopped working. Radio stopped at the same time just static now. Checked the fuses under dash and under hood all are ok. Headlight switch is also fine.
Directional signals, stop lights, high beams (steering wheel stalk) and four way flashers all work.
1998 Ford Ranger. My headlights don't come on. The other lights are working and I did check fuses in enjin compartment and under dash and they are all ok. I check the globes and connection are fine. I am a woman and need advice in plain english. Please help!
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