Headlights - The 1947 - Present Chevrolet & GMC Truck Message Board Network

entourageguy · 06-18-2006, 08:41 AM

After about 1/2 hr with my lights on they start to flash on and off. The oncoming traffic loves this as there must be a cop ahead!! I'm sure there is a circuit breaker type fuse some where. The rest of the lights (dash etc) are not affected. Is it on the light switch itself? Can it be changed or is it time for a new switch?
Thanks in advance for the help and Happy Fathers Day to all the dads. I'm off for a round of golf with my 12 year old.

Brian

Igotachevyor2 · 06-18-2006, 08:50 AM

ive had dimmer switch problems like this

dwcsr · 06-18-2006, 10:57 AM

There is a thermal type breaker on the light switch. When you look at the switch it has a set of points on the top. Thats the breaker. It could be bad or you have a bad connection somewhere making the load on the switch higher than normal. Things to check would be dimmer, the switch it self, headlight connectors. If you leave the lights on and they start flashing the bad connector should be warm or hot if its a connector.

Jebb1978 · 06-18-2006, 11:55 AM

I was thinking the same thing as dwcrs hopefully it's just a loose connection somewhere causing the the breaker to overheat. I had a simular issue with my 1978 and all it took was me taking the headlight plugs off and on to clean up the connection. Good luck, let us know what happens with it.

entourageguy · 08-13-2006, 12:35 AM

Was poking around under the dash thinking I'd replace the headlight switch but it looks like a new one already. It has a fuse instead of the old style breaker. Still not sure what would be causing the headlights to both go on and off.

Brian

Jebb1978 · 08-13-2006, 09:40 AM

Have you messed around with the plugs on the headlights at all?

entourageguy · 08-15-2006, 04:53 PM

Have not looked at plug for headlights. I thought the flashing of headlights would be the circuit breaker on the headlight switch going on and off. But since there is a new switch there with a fuse should it not just blow? What would be causing the lites to go on and off??

Brian

entourageguy · 09-17-2006, 01:20 PM

Well the headlite switch seemed to be getting quite hot so I replaced it. Also cleaned the area the switch makes contact with behind the dash and no more trouble. Did a 2 hr drive in the dark and no more flash...
Brian ..

texascowboy593 · 09-17-2006, 02:03 PM

Glad to hear it worked out for you!

06-18-2006, 08:41 AM	#1
entourageguy Yellow truck club Join Date: Apr 2006 Location: Barrie Ontario Posts: 2,080	Headlights After about 1/2 hr with my lights on they start to flash on and off. The oncoming traffic loves this as there must be a cop ahead!! I'm sure there is a circuit breaker type fuse some where. The rest of the lights (dash etc) are not affected. Is it on the light switch itself? Can it be changed or is it time for a new switch? Thanks in advance for the help and Happy Fathers Day to all the dads. I'm off for a round of golf with my 12 year old. Brian __________________ ................................................................ Brian ...... My hub garage address http://www.hubgarage.com/mygarage/59apache I gue$$ everything has it'$ price ALL GONE NOW *59 Chev Apache* *PRAISE THE LOWERED* 350 700r lokar shifter power MII front end, shockwaves tilt, 4 wheel discs 4-link and bags 10 bolt limited Last edited by entourageguy; 06-18-2006 at 08:42 AM.

06-18-2006, 08:50 AM	#2
Igotachevyor2 Apache Club Join Date: Jan 2006 Location: Goodlettsville,Tn. Posts: 1,294	Re: Headlights ive had dimmer switch problems like this __________________ 58 CHEVY APACHE I 74 CHEVY C-10 I 78 K-10 donor truck I 89 SONOMA My Trucks Apache Sitting Idle MySpace Project Dad's Truck (74 C-10 to K-10 conversion) .

06-18-2006, 10:57 AM	#3
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: Headlights There is a thermal type breaker on the light switch. When you look at the switch it has a set of points on the top. Thats the breaker. It could be bad or you have a bad connection somewhere making the load on the switch higher than normal. Things to check would be dimmer, the switch it self, headlight connectors. If you leave the lights on and they start flashing the bad connector should be warm or hot if its a connector.

06-18-2006, 11:55 AM	#4
Jebb1978 Senior Member Join Date: Aug 2005 Location: Mesa,Az Posts: 3,713	Re: Headlights I was thinking the same thing as dwcrs hopefully it's just a loose connection somewhere causing the the breaker to overheat. I had a simular issue with my 1978 and all it took was me taking the headlight plugs off and on to clean up the connection. Good luck, let us know what happens with it. __________________ 1959 GMC project

08-13-2006, 12:35 AM	#5
entourageguy Yellow truck club Join Date: Apr 2006 Location: Barrie Ontario Posts: 2,080	Re: Headlights Was poking around under the dash thinking I'd replace the headlight switch but it looks like a new one already. It has a fuse instead of the old style breaker. Still not sure what would be causing the headlights to both go on and off. Brian __________________ ................................................................ Brian ...... My hub garage address http://www.hubgarage.com/mygarage/59apache I gue$$ everything has it'$ price ALL GONE NOW *59 Chev Apache* *PRAISE THE LOWERED* 350 700r lokar shifter power MII front end, shockwaves tilt, 4 wheel discs 4-link and bags 10 bolt limited

08-13-2006, 09:40 AM	#6
Jebb1978 Senior Member Join Date: Aug 2005 Location: Mesa,Az Posts: 3,713	Re: Headlights Have you messed around with the plugs on the headlights at all? __________________ 1959 GMC project

08-15-2006, 04:53 PM	#7
entourageguy Yellow truck club Join Date: Apr 2006 Location: Barrie Ontario Posts: 2,080	Re: Headlights Have not looked at plug for headlights. I thought the flashing of headlights would be the circuit breaker on the headlight switch going on and off. But since there is a new switch there with a fuse should it not just blow? What would be causing the lites to go on and off?? Brian __________________ ................................................................ Brian ...... My hub garage address http://www.hubgarage.com/mygarage/59apache I gue$$ everything has it'$ price ALL GONE NOW *59 Chev Apache* *PRAISE THE LOWERED* 350 700r lokar shifter power MII front end, shockwaves tilt, 4 wheel discs 4-link and bags 10 bolt limited

09-17-2006, 01:20 PM	#8
entourageguy Yellow truck club Join Date: Apr 2006 Location: Barrie Ontario Posts: 2,080	Re: Headlights Well the headlite switch seemed to be getting quite hot so I replaced it. Also cleaned the area the switch makes contact with behind the dash and no more trouble. Did a 2 hr drive in the dark and no more flash... Brian .. __________________ ................................................................ Brian ...... My hub garage address http://www.hubgarage.com/mygarage/59apache I gue$$ everything has it'$ price ALL GONE NOW *59 Chev Apache* *PRAISE THE LOWERED* 350 700r lokar shifter power MII front end, shockwaves tilt, 4 wheel discs 4-link and bags 10 bolt limited

09-17-2006, 02:03 PM	#9
texascowboy593 Registered User Join Date: Dec 2004 Location: Southeast Tx Posts: 1,302	Re: Headlights Glad to hear it worked out for you! __________________ "The rays of light thru the Shiner Bock bottle make me wanna turn the key and put down the throttle...and get lost down 35" - Jason Boland www.YouTube.com/user/593Films - Watch My Videos! 1977 Silverado K10 2014 Dodge Durango (Wife-mobile) 2008 Dodge Ram Lone Star Edition (Daily driver)

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