Question about 1993 Subaru Impreza

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Interior light I replaced the bulb and it worked for a few days and then burnt out again. I'm guessing the power wire is grounding itself somewhere. Any common places the wire for the overhead light would wear through and ground itself?

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  • rickadee500 Jan 15, 2009

    Ok sorry it took me so long to actually try something but here's where I'm at now. I took the old bulb out and it was actually white on the inside. Put new bulb in and made sure it was clean and that the contacts didn't have any corrosion on them (they didn't to begin with) and nothing. No flicker, no light, not a darn thing.

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The light bulb is the load in the circuit. if the 12v. side of the circuit was shorted to ground. it would blow the fuse. the ground side of the circuit is supposed to touch ground. so the only way for a bulb have an early failure is at the bulb its self. some bulbs get so hot during operation that the oils from your skin transferred during installation will actually damage the bulb. another cause of over heating can be, loose or corroded pins in the bulb socket. this adds extra resistance to the circuit, which means more heat. i suggest when you replace the bulb the next time use a paper towel to handle the bulb with. ensuring no oil from your skin will come in contact with the bulb.

Posted on Dec 15, 2008

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