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Old 08-15-2011, 08:52 PM   #1
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Headlight Mystery!!!

Ok so one of my headlights blew and I decided to order 2 new ones and put them in and after about an hour of crusing around they shut off for a few sec then come back on, shut off for a few sec come back on and repeat it until I stop for about 5 min then they stay on for about 20-25 min then start the cycle over. This looks funny when im doing 65-70 down the interstate and my YJ is 'flashing" everyone but most of all I can see when it does this haha. I have taken the connectors off and cleaned them but to no avail have I succeeded. So I ask for your assistance in this matter, PLEASE!!!

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Old 08-15-2011, 08:58 PM   #2
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It's BOTH lights? They go on & off together?

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Old 08-15-2011, 09:06 PM   #3
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The headlights have a 25 amp circuit breaker in circuit as well as a 30 amp fuse. Sounds like for some reason these lamps are drawing too much current and you're tripping the breaker. Make sure these lamps are the right wattage.
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Old 08-16-2011, 05:57 PM   #4
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Yeah both of them are doing it but if it was throwing a fuse/relay why would it stop after about 15 min and start again 15-20 min later.
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Old 08-16-2011, 06:13 PM   #5
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Does it ever do it when hitting bumps, or when the Jeep is jolted? You might turn them on right after you start the vehicle cold. then if they start doing it after the engine bay is hot after driving....you might have a heat related issue....just a thought.
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Old 08-16-2011, 06:14 PM   #6
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The switches on yj have a issue of doing that when the contacts in the switch get dirty and or loose tension between them.
If you like to work on even the smallest part like I do or am cheap like i am then you can pull the switch apart and clean it up add a little tension to the springs and make the switch better then it ever was .
Or you can buy a new replacement one.
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Old 08-22-2011, 10:24 AM   #7
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My YJ started doing the same thing this morning. It is only the headlights not the running lights and they "flash" even if I stop. Tried messing with connectors under dash and hood but didn't make a difference either way.
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Old 08-22-2011, 12:46 PM   #8
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Quote:
Originally Posted by wkg2009 View Post
Yeah both of them are doing it but if it was throwing a fuse/relay why would it stop after about 15 min and start again 15-20 min later.
because the breaker trips when it gets hot and then resets when it cools back down....either a bad breaker or drawing to many amps from the new lights....
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Old 08-22-2011, 02:45 PM   #9
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Try replacing the breaker I've seen them get old and weak and trip when you put new lights in.
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Old 08-22-2011, 02:58 PM   #10
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yea id go with the switch also check the conector at back of head lampswitch for melting getting too hot,due to bad conection.

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