Low Beam Headlights Stop Working But Aren't Burned Out

[James Strickland]

Low-beam headlights keep burning out after a few months on my 2010 Silverado.  Or, so I thought.  Been having the low-beams go out every few months.  I buy new ones and they work great for a few months.  The driver's side  low-beam has been out for a few weeks.  Then the passenger side low-beam also went out and the same day... the driver's side low-beam came back on.  I didn't replace the bulb.  They're both out now.  I thought I was blowing the bulbs somehow.  But, now I'm wondering if it's an electrical issue.  But, if that's the case, why do new bulbs always work?

 

Any help is appreciated!

[davester]

Check how many volts are present at the connectors, both at idle and with the engine revved up to say 3K rpm.

[James Strickland]

8 hours ago, davester said:

Check how many volts are present at the connectors, both at idle and with the engine revved up to say 3K rpm.

Ok.  Will check that out.  This morning, the passenger low-beam came on again after being out the past few days.

[jagabom (Esquire)]

Maybe the bulbs aren't seating well in the socket.  Sounds like a connection somewhere.

Jim

2011 Sierra 5.3

Edited October 31, 2019 by jagabom

[15SilvyHC]

Yeah as mentioned above sounds like your bulbs aren't seating well. Also check the condition of you connectors really well. I know several people including myself have had problems with these trucks burning up the low beam connectors. Not sure if it is a short somewhere or what but I've been through several. I would have the same issue sometimes they would decide to work and other times they wouldn't.