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No Headlights


This is a discussion on No Headlights within the Tech Info forums, part of the 1st Gen : 1981 - 1993 category!
So I've been searching around for a while and had found a couple similar situations others have had but their ...


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Old 10-01-2015, 06:14 PM   #1 (permalink)
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Default No Headlights
So I've been searching around for a while and had found a couple similar situations others have had but their solution has not solved mine yet.

My headlights had been intermittent for a bit where they would work for a while, then they wouldnt work for a while to the point where they would flicker and then stay out.

my running lights would still work, my high beams when held, would stay on, but my low beam headlights would not come on still.

I replaced the headlamp switch as it seems to be a common failure but i am still having the same issue.

I have the entire dash apart and have found that it seems there is a loose wire possibly because when i have my headlamp switch turned on, the running lights are on, but the buzzer does not stay on constantly (engine off) like it usually does to remind you to turn your lights off. sometimes when i move the harness it goes on and off.

in short, my headlights wont stay on.

I have been unwrapping all the factory harness's in the dash and have yet to find a bad wire/loose wire.

any other ideas what i could be looking for??

im lost even with the factory wiring manual.





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Old 10-01-2015, 07:42 PM   #2 (permalink)
 
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well since your high beams work your issue is in the wiring between the dimmer switch and headlights themselves. should be fairly easy to narrow down. i would possibly be looking at ground wires under the hood. you could try doing a resistance test between the headlight connector and the dimmer switch connector.


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Old 10-01-2015, 09:23 PM   #3 (permalink)
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Found my issue.




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Old 10-01-2015, 09:34 PM   #4 (permalink)
 
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that would do it. that is one of the reasons i recommend installing a relay harness on any old truck especially if you are daily driving them. the weak spots in the electrical sometimes show up like that.


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Old 10-02-2015, 12:21 AM   #5 (permalink)
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Originally Posted by crazzywolfie View Post
that would do it. that is one of the reasons i recommend installing a relay harness on any old truck especially if you are daily driving them. the weak spots in the electrical sometimes show up like that.

Already ahead on that one. Made this harness and installed it.




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Old 10-02-2015, 04:45 PM   #6 (permalink)
 
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looks good but seems like you are a bit late tho lol. at least you shouldn't have any future issues with the lights and they should be noticeably brighter.


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Old 10-19-2015, 02:03 AM   #7 (permalink)
 
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The original issue that caused that is a bad ground


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Old 10-19-2015, 09:17 AM   #8 (permalink)
 
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