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    headlights shut off

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    tyler.henehan
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    Posts : 1
    Join date : 2015-11-03
    Age : 21
    Location : Victor, NY

    headlights shut off

    Post  tyler.henehan on Tue Nov 03, 2015 10:19 pm

    Hey guys, ive been having some issues lately with my headlights. Driving around with just low-beams on everything is fine, but if I use my high-beams, after a while they will just cut out completely. when it does this I lose my high-beams, low-beams, and my radio turns off. the issue will go away if I hit the switch and go back to low-beams and everything will come back on. Its just kinda sketchy going down a dark back road and losing all my lights. Ive tried to diagnose it but its hard with it being such an intermittent issue. all grounds seem to be good and I don't see any loose connections or broken wires. just trying to see if anyone has any ideas. Thanks


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    78i6belair
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    Posts : 41
    Join date : 2014-11-03
    Age : 30

    Re: headlights shut off

    Post  78i6belair on Sun Nov 08, 2015 9:47 am

    Hi there. Have you tried measuring the alternator charge output at the battery when the electrical system is loaded up, ie headlights on, blower motor on high, wipers on, rear defrost on or blower motor? Should be above 13.5v or greater.

    I run a 12SI 80amp GM alternator out of a 1984 chevrolet Camaro and increased my alternator charge lead from 14 gauge wire to 10 gauge wire and my charging system rocks!

    I do believe their is a built in circut braker in the O.E headlight switch and this might be getting tripped due to a short to power and or ground.

      Current date/time is Thu Apr 27, 2017 4:33 pm