Venture Posted January 22, 2008 Share Posted January 22, 2008 I have 78 280z that i have "up graded" to the crappy plastic lenses with the replaceable bulbs. I put in relays when i did the swap, and had absolutely no problems for a year and a half. Then a few weeks ago my passenger low beam blows. Not a big deal, my lights aren't that bright so I drive it with high beams for a couple of days until my driver side high beam blows. Bummer, so i replace both bulbs. I tested the lights and checked my relays, no problems, but as I'm pulling out of work that night i see two quick flashes and everything goes dark. I switch to highs, and see another flash, and I'm down to one high beam. I checked for frayed wires and bad connections, then replaced bulbs again. had no problems for a month, but tonight lost both low beams while pulling out of work. The only common element as far as i can tell has been the weather. Every time it has happened it has been cold and misting, like just before it starts raining. I'm not great at electrical, but I can usually fumble my way through. Has anyone ever had a problem like this before? What should I check. thanks, Jason Quote Link to comment Share on other sites More sharing options...
zman1988 Posted January 22, 2008 Share Posted January 22, 2008 was there anything wrong with your battery i only ask because my Nissan pickup did the same thing and my battery was being overcharged and was bubbling that means its either the alternator or voltage regulator Quote Link to comment Share on other sites More sharing options...
Venture Posted January 22, 2008 Author Share Posted January 22, 2008 That makes a lot of sense. I'll check that out. Thanks a bunch! I love this site! Quote Link to comment Share on other sites More sharing options...
Guest CDC# C29300 Posted January 22, 2008 Share Posted January 22, 2008 It would be hard to imagine an electrical glitch that blows up head lights and doesn't fry other things in the electrical system. My guess is water is getting to the hot bulbs causing them to crack. Any air inside the sealed beams will burn out the elements in short order. Make sure the bulbs are properly sealed. Try switching back to the stock set up for a while and see if the problem goes away. Quote Link to comment Share on other sites More sharing options...
deja Posted January 22, 2008 Share Posted January 22, 2008 Also make sure you do not touch the glass on the bulbs when you install the. Oil from your fingers will burn and cause the glass to crack and result it what CDC#C29300 said. Quote Link to comment Share on other sites More sharing options...
Venture Posted January 24, 2008 Author Share Posted January 24, 2008 I think the voltage regulator is going, or gone. My amp meter in the car pegs out at anything over 2000 rpm. I know not to touch the bulbs, and there are rubber boots to keep out moisture. I just hope it's something that simple. Quote Link to comment Share on other sites More sharing options...
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