Side Marker lights... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

DaBigKahuna · 03-26-2011, 08:26 PM

Got a question for you guys.

I just noticed that when my headlight are on, my front side markers flash with the turn signal. Seems to me that on a '71 they should just be lit and not flash. I'm wondering if the PO might have wired it up funny.

**leddzepp** · 03-26-2011, 08:40 PM

no, they are supposed to flash
Posted via Mobile Device

Gene · 03-26-2011, 08:41 PM

Quote:

Originally Posted by leddzepp

no, they are supposed to flash
posted via mobile device

x2

DaBigKahuna · 03-26-2011, 08:57 PM

Thanks for the quick answers!

Now i gotta figure out why they flash too fast ;-)

Gene · 03-26-2011, 09:18 PM

Quote:

Originally Posted by DaBigKahuna

Thanks for the quick answers!

Now i gotta figure out why they flash too fast ;-)

Prob bad or wrong flasher. Try a new one, they are cheap.

hayhauler71 · 03-26-2011, 09:20 PM

Quote:

Originally Posted by DaBigKahuna

Thanks for the quick answers!

Now i gotta figure out why they flash too fast ;-)

bad bulb
wrong bulb
missing bulb
flasher

here are a few things to look at

Longhorn Man · 03-27-2011, 01:24 AM

most flashed, but not all of them.

DaBigKahuna · 03-27-2011, 01:56 AM

Thanks for the ideas. I thought I remembered that the flasher would go faster with a higher load and slower with a lesser load like from a burnt our bulb. I swapped out both front bulbs today as I added clear lenses with amber 1157s and that made no difference in the flash rate.

I think I'll look at the flasher since it's faster on both left and right. If it was a bulb, it should affect one side.

doctrouble · 03-27-2011, 02:25 AM

Sorry, don't mean to take over but, i have a similar problem. (none of my side lights show life.) One of the front turn signals burnt out and replaced it. 2 secs after i tried the turn signals it went out again. The other side is still fine tho..

stsalvage · 03-27-2011, 02:29 AM

I'm converting all my trucks at have side makers to flash.Most people are to busy on the phone to pay attention to you.And are trucks are so poorly lit up I need all the help to let people i'm turning. Kinda wish the rear did it to.But i see they only had that option in 1971--72 Not to sure if they hand it in the more Deluxe trucks But i see it as a added bonus.i"m not one for guys shaving there side markers.its a safety device.sence trailer have them there has to be a reason why the federal government wanted them on the side of are trucks and car;s after 1967.To bad a few friends of mine had to figure that one out the hard way.Friend of mine was pulling out of a dark lite side road and the guy Hit him Brod side spoune him around and another car T boned him Just destroyed that $15,000 doller truck it took him over 10 years to build it.He later admitted if he would of had the side makers the guy would of honked his horn.He got sited for pulling out onto on coming traffic.

I do understand that most of us want to customize are trucks and car's.But leaving out the safety options is a Big risk on the builders and the owners.I'm all about safety I saw them New LED lights in a 1970 chevy truck to day.There way Brighter then i though they would be and They really got my attention when traffic abrumpley stopped. Man i need to get a set for my trucks.

stsalvage · 03-27-2011, 02:35 AM

Quote:

Originally Posted by doctrouble

Sorry, don't mean to take over but, i have a similar problem. (none of my side lights show life.) One of the front turn signals burnt out and replaced it. 2 secs after i tried the turn signals it went out again. The other side is still fine tho..

It might be time to buy a new front Light harness there 125.00 But if you go that far your should really start buying the engine wire harness as well to much is riding on them 35 year old wires that every moron has cut added or just planed messed up.You get new wiring gutters New plug's and New Dia electric grease and it makes your head lights brighter and less chance of a short and a fire under the hood.look Up this web side WWW.TRUCKANDCARSHOP.COM THEY USE THE m&h RE POP FACTORY HARNESS AND IF YOU WANT YOUR SIDE MARKERS TO BLINK USE THE 1971--72 FRONT LIGHT HARNESS

doctrouble · 03-27-2011, 03:15 AM

Quote:

Originally Posted by stsalvage

It might be time to buy a new front Light harness there 125.00 But if you go that far your should really start buying the engine wire harness as well to much is riding on them 35 year old wires that every moron has cut added or just planed messed up.You get new wiring gutters New plug's and New Dia electric grease and it makes your head lights brighter and less chance of a short and a fire under the hood.look Up this web side WWW.TRUCKANDCARSHOP.COM THEY USE THE m&h RE POP FACTORY HARNESS AND IF YOU WANT YOUR SIDE MARKERS TO BLINK USE THE 1971--72 FRONT LIGHT HARNESS

Thanks!!

Another free!! catalog i can browse through. Ya, almost everything i'm seeing is home-twisted with electrical tape

Exa: found a constant hot wire just hanging down from under the dash...

(just have to say how much help you guys are and how much i love this site)

Transformula · 03-27-2011, 10:11 AM

I figured out how to have either "Steady on", or "Flashing" side markers, and it only has to do with how the side marker is wired. Here's how:
For a steady on application, wire the side marker so that one lead goes to ground and the other lead ties in to the front "running light" circuit, the one that powers the front bulb on the low, non-turn wire, usually brown.
For a flashing application, wire the side marker leads to the two hot wires of the front turn signal, and neither side marker lead goes to ground. When the headlights are off, the side marker will flash on and off in conjunction with the front turn signal. When the headlights and running lights are on, the side marker will flash on and off oppisite the front turn signal!
Hope this gives a little insight for anyone who might want to do some wiring!

elf w/capital T · 03-28-2011, 06:37 PM

Quote:

Originally Posted by Transformula

For a flashing application, wire the side marker leads to the two hot wires of the front turn signal, and neither side marker lead goes to ground. When the headlights are off, the side marker will flash on and off in conjunction with the front turn signal. When the headlights and running lights are on, the side marker will flash on and off oppisite the front turn signal!
Hope this gives a little insight for anyone who might want to do some wiring!

Can you make it so the fender lights blink with headlights on at the same time as the bumper lights??

i want it the same blinking action even with head lights on....possible??

Transformula · 03-28-2011, 07:08 PM

Might be possible with some relays, but I'm not sure. GM vehicles usually have the front and fender flashing opposite each other when the headlights are on. Keeps the wiring simple I guess.
But, anything is possible with a little experimentation!

DaBigKahuna · 03-28-2011, 07:44 PM

Now you guys are gonna make me look. I didn't pay attention to see if they flashed together or opposite.

Longhorn Man · 03-28-2011, 11:16 PM

with the parking lights off, they will flash together.
Once the parking lights are on, they will flash oposite of each other.

DaBigKahuna · 03-29-2011, 04:32 PM

Yep sure enough! 'course I'm sure Longhorn Man already knew!

03-26-2011, 08:26 PM	#1
DaBigKahuna Registered User Join Date: Mar 2011 Location: Disneyland, CA Posts: 486	Side Marker lights... Got a question for you guys. I just noticed that when my headlight are on, my front side markers flash with the turn signal. Seems to me that on a '71 they should just be lit and not flash. I'm wondering if the PO might have wired it up funny.

03-26-2011, 08:40 PM	#2
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 19,997	Re: Side Marker lights... no, they are supposed to flash Posted via Mobile Device __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man

03-26-2011, 08:57 PM	#4
DaBigKahuna Registered User Join Date: Mar 2011 Location: Disneyland, CA Posts: 486	Re: Side Marker lights... Thanks for the quick answers! Now i gotta figure out why they flash too fast ;-)

03-27-2011, 01:24 AM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Side Marker lights... most flashed, but not all of them.

03-27-2011, 01:56 AM	#8
DaBigKahuna Registered User Join Date: Mar 2011 Location: Disneyland, CA Posts: 486	Re: Side Marker lights... Thanks for the ideas. I thought I remembered that the flasher would go faster with a higher load and slower with a lesser load like from a burnt our bulb. I swapped out both front bulbs today as I added clear lenses with amber 1157s and that made no difference in the flash rate. I think I'll look at the flasher since it's faster on both left and right. If it was a bulb, it should affect one side. Last edited by DaBigKahuna; 03-27-2011 at 01:58 AM.

03-27-2011, 02:25 AM	#9
doctrouble Registered User Join Date: Nov 2010 Location: L.A. California Posts: 82	Re: Side Marker lights... Sorry, don't mean to take over but, i have a similar problem. (none of my side lights show life.) One of the front turn signals burnt out and replaced it. 2 secs after i tried the turn signals it went out again. The other side is still fine tho.. __________________ "Feel it's not a bonfire unless they can see it from space?" ~ Capt. Morgan 1970 Cst - 20 402 1984 Chevy C30 6.2L Diesel crew cab Dualie

03-27-2011, 02:29 AM	#10
stsalvage Scrapper 1 Join Date: Jan 2007 Location: Riverside Calif Posts: 1,649	Re: Side Marker lights... I'm converting all my trucks at have side makers to flash.Most people are to busy on the phone to pay attention to you.And are trucks are so poorly lit up I need all the help to let people i'm turning. Kinda wish the rear did it to.But i see they only had that option in 1971--72 Not to sure if they hand it in the more Deluxe trucks But i see it as a added bonus.i"m not one for guys shaving there side markers.its a safety device.sence trailer have them there has to be a reason why the federal government wanted them on the side of are trucks and car;s after 1967.To bad a few friends of mine had to figure that one out the hard way.Friend of mine was pulling out of a dark lite side road and the guy Hit him Brod side spoune him around and another car T boned him Just destroyed that $15,000 doller truck it took him over 10 years to build it.He later admitted if he would of had the side makers the guy would of honked his horn.He got sited for pulling out onto on coming traffic. I do understand that most of us want to customize are trucks and car's.But leaving out the safety options is a Big risk on the builders and the owners.I'm all about safety I saw them New LED lights in a 1970 chevy truck to day.There way Brighter then i though they would be and They really got my attention when traffic abrumpley stopped. Man i need to get a set for my trucks.

03-27-2011, 10:11 AM	#13
Transformula Registered User Join Date: Nov 2010 Location: Las Vegas, Nevada Posts: 160	Re: Side Marker lights... I figured out how to have either "Steady on", or "Flashing" side markers, and it only has to do with how the side marker is wired. Here's how: For a steady on application, wire the side marker so that one lead goes to ground and the other lead ties in to the front "running light" circuit, the one that powers the front bulb on the low, non-turn wire, usually brown. For a flashing application, wire the side marker leads to the two hot wires of the front turn signal, and neither side marker lead goes to ground. When the headlights are off, the side marker will flash on and off in conjunction with the front turn signal. When the headlights and running lights are on, the side marker will flash on and off oppisite the front turn signal! Hope this gives a little insight for anyone who might want to do some wiring! __________________ T.Y.N Custom Works..... Because "Stock" Sucks! 1971 K 10 GMC Long Bed 1977 Formula T/A Frame off Resto-Mod 1995 FXDL Harley Low Rider 1985 C10 ShortWide 91 Burb front.

03-28-2011, 07:08 PM	#15
Transformula Registered User Join Date: Nov 2010 Location: Las Vegas, Nevada Posts: 160	Re: Side Marker lights... Might be possible with some relays, but I'm not sure. GM vehicles usually have the front and fender flashing opposite each other when the headlights are on. Keeps the wiring simple I guess. But, anything is possible with a little experimentation! __________________ T.Y.N Custom Works..... Because "Stock" Sucks! 1971 K 10 GMC Long Bed 1977 Formula T/A Frame off Resto-Mod 1995 FXDL Harley Low Rider 1985 C10 ShortWide 91 Burb front.

03-28-2011, 07:44 PM	#16
DaBigKahuna Registered User Join Date: Mar 2011 Location: Disneyland, CA Posts: 486	Re: Side Marker lights... Now you guys are gonna make me look. I didn't pay attention to see if they flashed together or opposite.

03-28-2011, 11:16 PM	#17
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Side Marker lights... with the parking lights off, they will flash together. Once the parking lights are on, they will flash oposite of each other.

03-29-2011, 04:32 PM	#18
DaBigKahuna Registered User Join Date: Mar 2011 Location: Disneyland, CA Posts: 486	Re: Side Marker lights... Yep sure enough! 'course I'm sure Longhorn Man already knew!



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