Headlights not working properly

2008 CHEVROLET SILVERADO
340,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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PETABERT
  • MEMBER
  • 1 POST
Left hand low and high beam as well as fog light don't work, but parking light does.
Dec 26, 2020 at 4:32 AM
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JACOBANDNICKOLAS
  • Experienced Mechanic
  • 110,240 POSTS
Hi,

Each of the lights affected has its own power supply, so it's unlikely a fuse problem. However, they all share a common ground. I suspect that is where the problem is.

Take a look at the attached pic. I highlighted each light's ground which are all at the same place, lower left of the radiator support. The wires will all be black. It isn't uncommon for the connector to corrode and break or lose contact, so check there first.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

Let me know what you find or if you have other questions.

Joe

Dec 26, 2020 at 2:46 PM
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