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Unread 08-10-2011, 09:33 AM   #1
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1992 YJ Wrangler 
Join Date: Jul 2011
Location: GRANBURY, Texas
Posts: 16
head lights

my head lights turn on and off sometimes? ive seen it do it on a few.... whats the fix i know yall know! lol

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Unread 08-10-2011, 10:11 AM   #2
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1989 YJ Wrangler 
Join Date: Aug 2010
Location: Durham/East Haven, CT
Posts: 3,727
when i first got my jeep the lights would go out over a bump and then come back on after the next bump. i never intentionally fixed it but it hasnt done that since i took my dash apart to clean up some connections. im guessing it was probably a bad ground
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Unread 08-10-2011, 10:22 AM   #3
92 Green YJ
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1992 YJ Wrangler 
Join Date: Feb 2003
Location: Spring Valley, San Diego, CA, California
Posts: 3,892
When mine did that it turned out to be dust in the headlight switch. I pu,led the witch and took it apart for a good cleaning. Fixed the issue
92 YJ. High Output 4.0L
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Unread 08-10-2011, 12:46 PM   #4
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1996 ZJ 
Join Date: Dec 2010
Location: The Great Big Box, California
Posts: 5,854
Lots of things could be at play here, but first start with your connections on the back of the headlights. Make sure they are clean as a whistle- including the contacts inside of the plug itself. Any sort of corrosion or rust can make a bad connection and give intermittent power.

Also double check the crimped connections on the plug too, if one is frayed then it can cause an intermittent connection. Put some die-electrical grease on the contacts to seal them up from the elements.
I drive a Cherokar.

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Unread 08-10-2011, 03:23 PM   #5
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1995 YJ Wrangler 
Join Date: Jul 2011
Location: San Diego, California
Posts: 160
its most likely a dusty connector of some sort. mine did it to me too and i took the whole dash apart and field day'd it. never had an issue since. probably a good idea to do anyways.
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Unread 08-10-2011, 03:40 PM   #6
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1990 YJ Wrangler 
Join Date: Mar 2010
Location: Amarillo, TX
Posts: 114
Take your bulbs out of every socket. headlights, tailights, blinkers, ect. And apply dialectric grease it will save you . Not only in elecrical problems but your bulbs will last longer.
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Unread 08-10-2011, 07:40 PM   #7
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1993 YJ Wrangler 
Join Date: Aug 2011
Location: boiling springs, pa
Posts: 5
if you wheel your jeep alot, its not a bad idea to go around checking all your grounding wires, and giving them a good crank or two to make sure your not "wiggiling" your wires loose. Also never hurts to clean all your connections on a slow rainy day in the shop. Regular maintinence on the small stupid stuff surprisingly pays off!
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