headlight problem
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headlight problem
Im having trouble with the headlights on my 76 Econoline 150 Club Wagon. They will work for a little while and go out at random. I have already switched out the headlight switch but it still does it
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Post Fiend
Joined: Apr 2002
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From: Waterloo, Iowa
Welcome to FTE
Loose, corroded/rusty and/or missing ground cables and connections are the bugaboos as a vehicle ages. Corrosion doesn't have to be visible to cause voltage drop. High resistance causes switches to fail. 40+ year old start and ground cables should be replaced, and headlight ground return path through frame cleaned up. Anything that connects to body or frame as well.
Loose, corroded/rusty and/or missing ground cables and connections are the bugaboos as a vehicle ages. Corrosion doesn't have to be visible to cause voltage drop. High resistance causes switches to fail. 40+ year old start and ground cables should be replaced, and headlight ground return path through frame cleaned up. Anything that connects to body or frame as well.
Laughing Gas
Joined: Feb 2005
Posts: 786
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Exactly. A visual inspection is not enough. You need to take apart every connection, clean it well, coat with dielectric grease, and reassemble.
Get rough with the wires, too. Corrosion can be hiding inside the jacket. Push, pull, shove, twist, and find out what's good and what's not.
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