Headlight issues w/67
Thread Starter
1st Gear
Joined: Jun 2006
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Headlight issues w/67
I have an issue with the headlights on my '67. When I raise and turn on the headlights, none of the beams turn on...but when I press the dimmer switch, all 4 (high and low) beams come on. It's all or nothing. My first suspicion was the dimmer switch, which checked out OK. Any other ideas??
Melting Slicks
Joined: Oct 2004
Posts: 3,345
Likes: 87
From: Northern MN
St. Jude Donor '13-'14-'15-'16-'17
I don't want to be smart here but just how did you check the dimmer switch? If you get power to all four headlights when you switch to high beam then you are getting power to the switch at all times. The only place that you can possibly have a problem other than the switch would be if the low beam wire was broken in the harness and the low beam wire is making contact with the high beam wire in the harness. When you hit the high beams, it in turn makes contact with the low beam wire and all the lights come on. But that means two breaks which is unusual without both sets of lights failing. Other than that I can't see where else the problem could lie.
Melting Slicks
Joined: Oct 2004
Posts: 3,345
Likes: 87
From: Northern MN
St. Jude Donor '13-'14-'15-'16-'17
Originally Posted by stingrayl76
How about 2 burnt out low beams???
Team Owner
Joined: Oct 2000
Posts: 38,897
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From: Washington Michigan
If the dimmer switch is OK, you should see power at the tan wire terminal on it when in low-beam, and power at the light green wire terminal on it when in high-beam. If that's OK, the problem is further forward, either in the outboard multiple connector on the engine compartment side of the fuse block tan wire terminals, or further forward where the forward lamp harness connects to the headlight harness forward of the radiator support.
