brights
Junior User
Joined: Apr 2001
Posts: 71
Likes: 0
brights
hey fordslug i ave actually seen both high beams burned out atthe same time but not very often. you probally have a bad dimmer switch see if you have 12 volts to the head lites. if you do then you have bad bulbs if not ???? dimmer switch ??? hope that helps some.
Elder User
Joined: Nov 1999
Posts: 796
Likes: 3
From: Anderson Northern Ca
brights
Hey Fordslug, I had the same problem on my 72 F 100. I had a dead short in the high beam wire that runs past the battery box.Over the years vibration caused the insulator to wear thru at the battery box, so every time I turned on the high beams they cut out emediatley. I found the problem after much searching and reinsulated the wire then cut a length of plastic line lengthwise and forced it over the wire at the point where it wore thru. That was about 11 years ago and the lights still work fine.Good Luck, hope this helps.
"bowties in the rearview mirror"
"bowties in the rearview mirror"
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Senior User
Joined: Mar 2001
Posts: 118
Likes: 0
brights
bought a used switch for $1.50 at the junk yard. Fixed the problem. Thanks for all the responses
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