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Discussion Starter #1
Hey guys, one of my driver's side taillight bulb (nearest the backup lamp) keeps on burning out. The bulb originally burned out yesterday, I replaced it today and it burned out about 5 minutes later. I've had the car for awhile now, and it just started doing this.

Thanks in advance
 
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Is the filament in the bulb broken, or is the entire glass coated with a silver layer, which you can't see inside of the bulb?

Stan
 

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Discussion Starter #3
The filament broke on the first one I took out. I haven't replace the one that I put in earlier today because it's raining right now. A fresh bulb shouldn't burn out *that* quick unless there is a problem IMO.
 
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If the filament broke, the usual cause is due to excessive vibration or shock.

If the entire bulb is coated with a shiny silver layer inside, this is usually caused by a voltage spike that is much greater than 13.6V.

I found this info on PIAAs Japan website.

Stan
 

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Discussion Starter #5
Thanks for the reply. I don't think the bulb has been subjected to either. The other taillight bulbs are fine. I don't wanna fry another bulb until I can pinpoint the problem.

Anybody else have ideas?
 
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Please keep in mind, the voltage spike can be caused by the following:

Having your lights on BEFORE you start the car.

I doubt there is a particular brand that will work better than the other.

I would assume there is no water in your tail light lens, so I am stumped.

Stan
 
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