why does my left headlight always burn out?

175,000 MILES
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DANIELLE
  • MEMBER
  • 1 POST
within past 18 months, have had to replace 3 left headlights
Aug 29, 2011 at 10:58 AM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,410 POSTS
The number one cause of repeat failures is improper handling of the new bulb. You must not touch the glass part. The oil from your fingerprints will burn through the glass and cause it to shatter. If you do touch it, it can be cleaned with brake parts cleaner and a rag.

A second, less common cause is water build up inside the housing. Some manufacturers have come out with a service bulletin at one time or another about drilling a small drain hole in the bottom of the housing to let condensation drain out.
Aug 30, 2011 at 8:06 PM
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