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Old 10-26-2018, 07:34 PM   #1
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Join Date: Oct 2012
Location: mountain view arkansas
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headlight trouble on 65 c10

I am almost done with my 65 c10. I was finishing up some stuff today on it. One of the headlights did not work on high beam so I thought I would change it with another headlight I had laying around. I did and then neither headlight would work on low or high. So I put the other one back in with the same result. The ground was a little loose so I changed the plug with a good one and still nothing. I then ran a ground wire from the battery to the headlight and with it just hanging by the harness both came on. I re installed the headlight and nothing but the passenger side works on high only. I have a new under the dash harness,dimmer switch, and headlight switch. Any ideas?
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Old 10-27-2018, 07:13 AM   #2
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Location: Liberty, & Garden City S.C. , U.S.
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Thumbs up Re: headlight trouble on 65 c10

Well you answered your own question. If they both worked with the added ground then it's a ground issue. Take them back out and check the light connector on each light and the tabs of each light. With the light unplugged take a test light and check the connector to see if they have power.
Going by what you said they should but the ground maybe not making good connection.
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