91 F150 headlight problems
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From: New Lexington, Ohio
91 F150 headlight problems
I'm working on a buddy's 91 F150 and when you pull the switch on, the park lights/marker lights come on, but the headlights don't. The bulbs look ok, as do the wires. I haven't looked at the dimmer switch yet, but aside from that what could my problem be? Thanks for any help guys
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From: Virginia
The dimmer switch is where you want to look. It's problematic as it's in the dirty floor, and also it's an easy place to put a testlight or voltmeter.
It will have 3 wires. One hot wire coming from the headlight switch, and a low beam wire going out and a high beam wire going out. Pull the headlight switch, and the hot wire from the switch should have power. If it doesn't, you know the problem is up at the headlight switch most likely.
It will have 3 wires. One hot wire coming from the headlight switch, and a low beam wire going out and a high beam wire going out. Pull the headlight switch, and the hot wire from the switch should have power. If it doesn't, you know the problem is up at the headlight switch most likely.
Elder User
Joined: Feb 2002
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From: Rochester
1986 Ford Bronco
Hate to revive thsi thread, but this just happend to me on Thursday. I have a 1986 Bronco (fullsize) and I have the same issue (no headlights but have everything else). The only thing different is that the dimmer switch is no longer in the pathway...I took it out during my restoration and still have not put it back in. So do you think most likley mine is the headlight switch?
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Joined: Feb 2002
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From: Rochester
Dang...its bean too long since I've looked down there. I'll check tomorrow what to see what my wiring looks like and run some tests to see what's up. Thanks franklin
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Elder User
Joined: Feb 2002
Posts: 703
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From: Rochester
Franklin...def on the dimmer switch...I had forgotten I stuffed it in the side panel and must be corroded. Time to get a new one. And screw that baby down. Thanks bud...easy fix!
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