I have a headlight in my econoline that continually burns out, the same one every time. When I put a new bulb in it will last about a day or so. Voltage at the socket is 12.3 on low beam side. All the wiring looks good and the other bulb is fine. I'm stumped, considering that both bulbs are feed from a common hot wire, I don't see how only one is going bad. Anyone run across this before?
Do the replacement bulbs say "made in China"? Is the housing loose at the alignment spring or aiming bolts letting it vibrate? move the lamp that doesn't burn out to that side and see if it burns out. May be just a series of "made in China" or might as well be, lousy bulbs
China Bulbs . Watch there 1157 bulbs too. they didn't make it through a state vehicle inspection .2 went bad
If your wiring and ground seem OK .... it could be vibration .... rare ... but I have seen it happen .... if the light assembly is not firmly mounted it is possible for it to set up a harmonic vibration that damages the filament in the bulb. Like I said .... rare .... wind (when driving) is what sets up the vibration.
Had a Triumph motorcycle that would burn out the headlight if you speed shifted it at night (dah when the light was on!) it turned out to be a bad ground, ran a wire back to the frame no more burned out headlights.
I would expect the light to be unusually dim if the ground was bad. Maybe the lamp doesn't fit in the bucket securely and is rattling around? -Greg.
Grounds secure, light is secure, bulb is regular sylvania sealed beam. Moved light from other side, that was the second one that burned out. If I try and run a second ground, whats the best way to attach it to the bulb end, splice into the current ground in the bulb plug?
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