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Old 01-14-2005, 07:59 PM
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Blowing Bulbs

There is probably a real simple reason why I keep blowing bulbs. I've replaced the right rear turn signal/brake bulbe (#2057) 3 times in the last 6 months. The voltage looks OK on the meter, but something must be going on.

Thanks for your advice.

Dave

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Old 01-14-2005, 08:20 PM
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Where are you buying your bulbs?

I bought a bunch of cheapies at a swap meet and the didn't last any time at all.
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Old 01-14-2005, 09:06 PM
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No...these aren't swap meet bulbs. CarQuest and NAPA.

Dave
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Old 01-15-2005, 11:06 AM
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bluesman

what is the car?

It is the amps that is blowing the bulbs, not the volts.

swap the left bulb to the right side (and probably blow it) to prove it is a circuit problem

weird problem....where are the amps coming from
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Old 01-15-2005, 03:36 PM
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You may also be having a vibration problem that is taking out the bulb, maybe check for any thing loose in the mounting or around that section of the rear of the car. Good luck NWSPARKY
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Old 01-15-2005, 04:22 PM
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Is there any signs of water getting to the bulb?
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Old 01-15-2005, 06:28 PM
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Thanks for all the responses, guys.

The vehicle is a 1991 Sonoma V8 conversion. I've had the bed off several times, but when I checked the ground it looked good (someone else told me it might be a bad ground)...I also added another ground wire to that tail light cluster.

No water getting to it. Could be vibration, but it seems to just be the passenger side. I checked the brightness last night and both seem to be about the same as far as I can tell. The signal blinks at the same rate on each side.

When I have everything electrical on (lights, wipers, radiator fan) the voltage drops just below 14 on the gage (I have a 100 amp alternator).

Dave
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Old 01-16-2005, 03:51 AM
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good thought there nwsparky

is it amps or vibration?

add a fuse pigtail, smallest fuse that won't blow (? 1amp), fuse blows=amps, bulb not fuse=vibration,

vibration is more likely, if both bulbs were popping=amps, one bulb/amps, I'm scratchin' my head....
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Old 02-07-2005, 10:59 PM
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Check for any pinched or damaged wires, a cross short will apply extra voltage to the bulb and also burn out the element. An amperage problem would cause problems upstream on the fuse end, as amperage is "load". and intermittent ground usually just causes a blinking or flutttering light. Vibration kills too,
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Old 02-08-2005, 09:50 AM
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Thanks for the tip.

Dave
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Old 02-10-2005, 04:37 PM
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I have a '95 Ford Exploder (I hate the thing) that was blowing headlight bulbs. Turned out to be some sort of module inside the dash and cost me $700.00 to have it fixed. Like I said- I hate that thing.
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