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1978 F150 Headlights

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Old 01-22-2017, 08:13 AM
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fishbeard
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1978 F150 Headlights

Both headlights went out as I pulled the **** turning them on. All other lights work fine, just no headlights high or low.

Trying to locate fuze / relay
Any Ideas?
 
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Old 01-22-2017, 06:14 PM
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Trace wiring back from headlights, find common point where they meet up and look for a broken wire from there.
 
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Old 01-22-2017, 06:24 PM
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Originally Posted by fishbeard
Both headlights went out as I pulled the **** turning them on. All other lights work fine, just no headlights high or low.

Pull the headlamp switch **** all the way out, step on the floor mounted dimmer switch, then see what happens.

The switch corrodes, so if the low beams are on and you step on the switch, the headlights will go out...and vice versa.
 
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Old 01-30-2017, 07:40 PM
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yes its either the dimmer switch or the headlight switch. very common place for headlight problems.
 
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