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flickering headlights

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flickering headlights - 2/7/2008 6:54:19 PM   
jlm6740


Posts: 37
Joined: 11/11/2007
Status: offline
Has anyone noticed that the headlights seem to flicker on their NBS Silverados?  I have a '07 NBS Crew and have noticed a brief flicker or dimming of the headlights while driving at night.

It only occurs for a fraction of a second.

I haven't been able to determine a pattern, like when the brakes are applied or anything else electrical comes on (because it doesn't happen all the time), but I think that it is when it generally happens.  I havent' noticed that the dash lights do this.

Haven't notice any changes in the gauges.

Am I just seeing things? 
Post #: 1
RE: flickering headlights - 2/7/2008 7:29:29 PM   
fireman526


Posts: 450
Joined: 2/3/2008
From: Houston, Texas
Status: offline
I know what you mean, I have the same problem. Its only the headlights, and it seems like its only when the truck is idling down, like coming to a stop or at idle. They will dim for a brief moment then get bright again. I dont know what causes it. The voltage seems fine, IDK.

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RE: flickering headlights - 3/3/2008 8:27:44 PM   
rjsasaoka


Posts: 66
Joined: 2/18/2008
Status: offline
I know this is a bit late if you haven't gotten an answer yet... 

A friend of mine who is ASE certified said that is related to the alternator.  Someone else had the same issue you mentioned and that's what he mentioned to me.  I vaguely remember that same issue I had when I owned a FZR 600 and after replacing the alternator it went away, but that is when I used to work on bikes many years ago and completely forgotten about that...


< Message edited by rjsasaoka -- 3/3/2008 8:29:09 PM >

(in reply to fireman526)
Post #: 3
RE: flickering headlights - 3/5/2008 6:46:39 PM   
jlm6740


Posts: 37
Joined: 11/11/2007
Status: offline
Thanks!  I'm just waiting to see if anything gets worse.  Warrenty should take care of anything for now.

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Post #: 4
RE: flickering headlights - 3/5/2008 9:26:14 PM   
rms

 

Posts: 33
Joined: 3/5/2008
Status: offline
Check the alternator.  If it is good, probably a bad ground.

(in reply to jlm6740)
Post #: 5
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