Fog lights explode..help - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 02-04-2006
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Fog lights explode..help

Ok, starting to get pissed off.
I have been through 3 fog lights on my driver side in 2 weeks.
the glass bulb has been exploding in the light everytime.
Any idea on what would be causeing that to happen?
The bulbs last about 3-4 days and they are done.
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  #2  
Old 02-04-2006
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moisture getting on them when theyve been on for a while... or somehow to much power is getting to it...
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  #3  
Old 02-04-2006
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My guess is also that it's being over-powered. I'm not an electrical guy, but if it's possible for the fog light relay to fail in such a way that starts passing too much current, that could be the source of your problem.

I'd also check the wire harness terminals at the fog light end of the harness. If you have corrosion present, that could be causing an over-heat condition, which will shorten the life of the bulb.

Are you running the stock wattage bulbs (55 watt)? If the wattage is too high, that will shorten the life as well.

All guesses, but it might be a place to start.
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  #4  
Old 02-04-2006
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ya what kind of bulb are you running?
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Old 02-04-2006
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or you migh be touching the glass on the bulb, or amybe an air leak on your fog lamp
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Old 02-04-2006
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my fog lights use to do that....it was the moisture :(
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  #7  
Old 02-04-2006
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All the bulbs i had were stock.

I do get a lot of moisture in the lenz.

The thing that confuses me is it works for a good 3 days.
Then it will just explode.
That tells me that it cant be getting over powered or it would explode right when i turn them on.
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  #8  
Old 02-04-2006
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I never use my foglights...
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  #9  
Old 02-04-2006
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Quote:
Originally Posted by bigwill41
I never use my foglights...

really?
I cant live without them
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  #10  
Old 02-05-2006
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Are you touching the glass on the bulb with your fingers?
The oil on your skin will get on the bulbs. The bulbs heat up and explode.
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  #11  
Old 02-05-2006
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^^ very true. i just got silverstars for my headlights and one blew up, i think thats the reason.
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  #12  
Old 02-05-2006
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try drilling a hole in the bottom of the fog to let water drain

you can super glue the hole up later if that doesnt help
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Old 02-05-2006
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you got warranty...take that fool back..lol..
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  #14  
Old 02-05-2006
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stop touching the bulb evan and remove that water in there lol...
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Old 02-05-2006
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dont drill a hole, bad idea, i tried that to drain water out of my old ones - HUGE mistake. you think u got problems now, drill a hole in it. maybe cheaper to just buy a new housing for the driverside.
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  #16  
Old 02-05-2006
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It's the moisture. Buy a whole new unit.
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  #17  
Old 02-07-2006
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I do have moisture in there...ill try and drain it.
Now i have glass from 3 bulbs in there as well...lol

Ill try and clear the fog light out and get a new bulb in without touching the glass.
thanks for the ideas.
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  #18  
Old 02-07-2006
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Quote:
Originally Posted by rangererv
I do have moisture in there...ill try and drain it.
Now i have glass from 3 bulbs in there as well...lol

Ill try and clear the fog light out and get a new bulb in without touching the glass.
thanks for the ideas.

remove the light to get the glass out


use a hair dryer or heat get (easy with the heat gun) and dry up the moisture
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  #19  
Old 02-07-2006
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Quote:
Originally Posted by Blhde
remove the light to get the glass out


use a hair dryer or heat get (easy with the heat gun) and dry up the moisture
Ya, im probably going to remove the whole housing and clean them out when i get time
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  #20  
Old 02-07-2006
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A new housing from Ford is like $50 bucks last time my dad took a rock to one.
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  #21  
Old 02-07-2006
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^^ it might be better just to buy a new housing then, instead of buying fog lights at $11 ea.
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  #22  
Old 02-07-2006
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Sabotage
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  #23  
Old 02-07-2006
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This has to be the greatest title I've read in a while. Short, sweet and blunt, lol.
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  #24  
Old 02-07-2006
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Alright, some basic electrical concepts here.

Voltage is fixed at whatever the alternator is producing. In our case, it is 13-14 or so volts. Nothing adds more voltage. The only thing it can do is drop from resistance. This wouldn't cause the bulb to fail, it would just dim.

Current is drawn by the device. A 45 watt lightbulb draws about 3 amps. Nothing else draws current through the bulb. Current can not be pushed through the bulb. It only draws what it needs.

A relay is nothing more than a switch. It is not a current limitting device nor can it force more current through the bulb. It is either 100% on or 100% off.

A FUSE is the only thing within reason that will limit current flow and thats only because it blows when it's limit is reached. A 15 amp fuse will flow anything from .0001 amps through 15 amps unchanged. If you try to flow 16 amps, it will burn up and leave the circuit disconnected.

Your bulb is blowing either from water incursion into the housing or you are touching the glass when installing it.
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  #25  
Old 02-07-2006
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when mine got moisture in them, i filled em w/ isopropyl alcohol and swished it all around...

shook out the alcohol, and let them sit out in the sun and dry.

then, i put em back on, never had another problem...
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