Head Light Trouble

claytonfrnk · 08-30-2006, 05:35 AM

I am having headlight issues. I know its wiring because only one headlight works. I have the four headlight system on my 85 silverado and the lower headlight on the driver side is the only headlight that works. I have switched the headlights all around and no matter what only that headlight works. When i turn the right blinker on the blinker blinks but is real dull, also the front passenger side headlight blinks with the blinker but is reall dull. Is there a factory headlight harness replacement somewhere out there or no. I have traced all the wires and all the grounds under the hood. They all seem to be in tact. Does anybody have any suggestions?

mudseeker · 08-30-2006, 05:53 AM

my 89 blazer did this on the passanger side as well. i tore the whole wire harness down and the test light showed power all the way up to the headlight plugs. i actully got it to work for a week when i thumped the light with my nuckels. anyways, i finely got it to work by cleaning everything with a small wire brush and useing some of that light bulb goop.

claytonfrnk · 08-30-2006, 07:17 AM

I will give that a try. wont be tonight though. Ernesto might hit us. The wife would be mad if i was messing with headlights in a tropical storm

bradrhale · 08-30-2006, 11:52 AM

the way its lookin, you might have a pretty good turnout with Ernesto. good luck to you with the storm and the truck.
that light bulb junk that mud is talking about is some good stuff. ill vouch for it.

wojeepster · 08-31-2006, 06:38 PM

grounds and connections can look good and be bad. time to break out the voltmeter. If you have 12v at the headlights you have a bad ground return. If you don't have 12v start measureing from the switch to the lights.

64longstep · 09-02-2006, 01:27 AM

what wojeepster said, and clean all of your conations,then use dielecteic grease on the conaters.

08-30-2006, 05:35 AM	#1
claytonfrnk Full Member Join Date: Aug 2006 Posts: 41	Head Light Trouble I am having headlight issues. I know its wiring because only one headlight works. I have the four headlight system on my 85 silverado and the lower headlight on the driver side is the only headlight that works. I have switched the headlights all around and no matter what only that headlight works. When i turn the right blinker on the blinker blinks but is real dull, also the front passenger side headlight blinks with the blinker but is reall dull. Is there a factory headlight harness replacement somewhere out there or no. I have traced all the wires and all the grounds under the hood. They all seem to be in tact. Does anybody have any suggestions?

08-30-2006, 05:53 AM	#2
mudseeker mod-o-tator Join Date: Feb 2006 Location: michigan Posts: 4,523	my 89 blazer did this on the passanger side as well. i tore the whole wire harness down and the test light showed power all the way up to the headlight plugs. i actully got it to work for a week when i thumped the light with my nuckels. anyways, i finely got it to work by cleaning everything with a small wire brush and useing some of that light bulb goop. __________________ member map add yourself alldatadiy why is it, when i push one for english, i still can't understand the person on the other end?

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08-30-2006, 07:17 AM	#3
claytonfrnk Full Member Join Date: Aug 2006 Posts: 41	I will give that a try. wont be tonight though. Ernesto might hit us. The wife would be mad if i was messing with headlights in a tropical storm

08-30-2006, 11:52 AM	#4
bradrhale Moderator Join Date: Apr 2006 Location: Texas Posts: 3,605	the way its lookin, you might have a pretty good turnout with Ernesto. good luck to you with the storm and the truck. that light bulb junk that mud is talking about is some good stuff. ill vouch for it.

08-31-2006, 06:38 PM	#5
wojeepster Senior Member Join Date: Nov 2005 Posts: 92	grounds and connections can look good and be bad. time to break out the voltmeter. If you have 12v at the headlights you have a bad ground return. If you don't have 12v start measureing from the switch to the lights.

09-02-2006, 01:27 AM	#6
64longstep Senior Member Join Date: Aug 2006 Location: PHX.AZ Posts: 140	what wojeepster said, and clean all of your conations,then use dielecteic grease on the conaters.