LED turn signal issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ramiro0727 · 09-09-2020, 10:06 PM

So I have United Pacific LED lights all around and my turn signals don’t work when my headlights are on but when they are off the turn signals work but as soon as i flip the switch the brake lights get bright as if you’re stepping on the brakes and don’t blink at all. I added 2 grounds in the back off the bed to frame and one off the block and frame.

Thanks ,
Ramiro

JMD · 09-10-2020, 07:17 AM

Do you have the United Pacific led flasher? I had the exact problem you are describing and I believe that was the fix.

Ramiro0727 · 09-10-2020, 11:54 AM

Quote:

Originally Posted by JMD

Do you have the United Pacific led flasher? I had the exact problem you are describing and I believe that was the fix.

JMD,

Yes I have the LED Flashers with the ground cable on them.

Thanks,
Ramiro

JMD · 09-10-2020, 04:48 PM

Are they United Pacific brand flashers though? There’s something about their flashers specifically that make them work with their LED tail lights.

Ramiro0727 · 09-11-2020, 12:17 PM

Quote:

Originally Posted by JMD

Are they United Pacific brand flashers though? There’s something about their flashers specifically that make them work with their LED tail lights.

JMD, not sure which brand my son purchased.

Ramiro

El_C10 · 09-11-2020, 04:02 PM

I've read installing a reverse polarity flasher is sometimes required. This maybe what you need.

https://www.raneystruckparts.com/led...tension-wires/

Rich72C10 · 09-11-2020, 04:48 PM

While it will be a bit of time before I can install my United Pacific LED lights, this is what their flasher looks like. When I ordered from Speedway, they recommend this United Pacific flasher.

Ramiro0727 · 09-11-2020, 05:02 PM

Quote:

Originally Posted by Rich72C10

While it will be a bit of time before I can install my United Pacific LED lights, this is what their flasher looks like. When I ordered from Speedway, they recommend this United Pacific flasher.

Thanks, Rich72C10. looks like we need to purchase a new pair of flashers. Ours doesn't have the reverse polarity base.

Ramiro

Ramiro0727 · 09-11-2020, 05:06 PM

Quote:

Originally Posted by Rich72C10

While it will be a bit of time before I can install my United Pacific LED lights, this is what their flasher looks like. When I ordered from Speedway, they recommend this United Pacific flasher.

Rich72C10 so If i purchase those new flashers with the reverse polarity base. Will that take care of my problem with the turn signals not working when the headlight switch is turned on? they work with the headlight switch turned off.

Ramiro

El_C10 · 09-11-2020, 06:30 PM

Quote:

Originally Posted by Ramiro0727

Rich72C10 so If i purchase those new flashers with the reverse polarity base. Will that take care of my problem with the turn signals not working when the headlight switch is turned on? they work with the headlight switch turned off.

Ramiro

Ramiro- Im running LEDs all around (Except turn signals, those are next) and I can honestly tell you every truck is slightly different. What works on some doesnt always work for others. I will keep you updated once I install my turn signal LED lights. I might need the fever polarity adapter. I’ll let you know.
Cisco

Rich72C10 · 09-11-2020, 05:11 PM

Hi Ramiro0727 - I couldn't say either way (I have my doubts). My brother still has my truck, he is finishing up a full SBC/TH350 rebuild. I am just collecting "parts" for little upgrades for it when it gets back into my hands!

But I am converting all the lights to LED. I got them from Speedway and most of them are United Pacific LED.

I just thought I post a photo of the United Pacific Flasher, so you could easily see it. In about two months I'll be able to feedback any issues I have or success

jessemthompson · 09-11-2020, 07:59 PM

Quote:

Originally Posted by Ramiro0727

So I have United Pacific LED lights all around and my turn signals don’t work when my headlights are on but when they are off the turn signals work but as soon as i flip the switch the brake lights get bright as if you’re stepping on the brakes and don’t blink at all. I added 2 grounds in the back off the bed to frame and one off the block and frame.

Thanks ,
Ramiro

I went through this problem with the lights being fully lit like the brake lights were on when you turned on the headlights. The UP flasher did not fix my issue. I ended up wiring in a dummy 1157 plug into the rear harness to add resistance to the circuit and all works well now. They also sell resistors you can wire in that will do the same thing. Now the UP flasher should help with your turn signal issue though. I had a thread on this in the electrical section about a month ago.

Rich72C10 · 09-12-2020, 07:38 AM

Interesting jessemthompson and a good read of your thread (link below). Glad you posted that about your 72 and I'll keep that in mind when I end up doing mine. I suppose this would have the potential to correct two things: Flashing Speed and

Tail light issues

While this YouTube is clearly for a newer Chevy, I suppose this 25 Watt load resistor could be the fix for the Brake Light intensity issue? I suppose this would have the potential to correct two issues: Flashing Speed and Brake Light intensity. Heck I might do this and return the "Flasher" and get a few bucks back.

How to Install a Load Resistor for LED Tail Lights

superbrightleds.com 1969 Chevrolet C10 Pickup Load Resistors
LED Light Load Resistor Kit - LED Turn Signal Hyper Flash & Warning Fix - 50W LED Load Resistor kit

Current Draw 2.25A (2250mA)
Ohms 6 Ohm
Wattage 50 Watts

O'Riley's
Sylvania Load Resistors For LED Mini Bulbs (Pack of 2)
Part # LOADRSLBX2

Rich72C10 · 09-12-2020, 11:19 AM

Due to heat that would occur with load resistors, I am thinking about these. If I am needing them after updating to LEDs (if I have Brake Light intensity issues).

Morimoto HD Load Resistor

jimijam00 · 09-12-2020, 11:36 AM

Those LED Flashers, like above, contain a load resistor.

Rich72C10 · 09-12-2020, 11:47 AM

Interesting, which would make sense. I am not doing bulb replacements but whole light/lense replacements from speedway. I am just reading every thread I can on this subject to be ready for anything that pops up! I'd be very happy they they all just work but I do plan to install one at a time and test as I go too!

Ramiro0727 · 09-12-2020, 06:13 PM

I ordered a pair of the reverse polarity adapters. Also I’m going to take a look at my turn signal switch.

Ramiro

jessemthompson · 09-12-2020, 06:57 PM

You need the reverse polarity switch for the turn signal side, but not the hazard side.

Bobbysgmc · 09-12-2020, 07:11 PM

I did the same thing with my truck.Had to put a couple of old style bulbs back in to make everything work right.Something about not enough voltage being drawn.

Ramiro0727 · 09-12-2020, 07:14 PM

Quote:

Originally Posted by Bobbysgmc

I did the same thing with my truck.Had to put a couple of old style bulbs back in to make everything work right.Something about not enough voltage being drawn.

Bobbysgmc. Where did u put old style bulbs at? All the lights in my sons truck are LEd.

Ramiro

jessemthompson · 09-12-2020, 08:06 PM

You have to wire in an additional 1157 plug. I did it under the bed of the truck. Just cover the bulb and wire it in before it splits between the tail lights.

Ramiro0727 · 09-12-2020, 08:17 PM

Quote:

Originally Posted by jessemthompson

You have to wire in an additional 1157 plug. I did it under the bed of the truck. Just cover the bulb and wire it in before it splits between the tail lights.

Jessemthompson wire it before the the 2 lights? To which colored wire?

Ramiro

Andy4639 · 09-12-2020, 09:03 PM

My 71 has all LED in it. No problems at all with anything. Everything works like it's suppose to. Both flashers are LED with grounds. No need for the old bulbs to be put in at all. Just fix the wiring so it's right.

https://www.youtube.com/watch?v=KEwca2XGBVM&t=6s

You Tube

https://www.youtube.com/watch?v=TxGB0TewBqU

You Tube

https://www.youtube.com/watch?v=XIOwg83B9Fg

You Tube

Ramiro0727 · 09-12-2020, 09:09 PM

Quote:

Originally Posted by Andy4639

My 71 has all LED in it. No problems at all with anything. Everything works like it's suppose to. Both flashers are LED with grounds. No need for the old bulbs to be put in at all. Just fix the wiring so it's right.

https://www.youtube.com/watch?v=KEwca2XGBVM&t=6s

www.youtube.com/watch?v=KEwca2XGBVM&t=6s

https://www.youtube.com/watch?v=TxGB0TewBqU

www.youtube.com/watch?v=TxGB0TewBqU

https://www.youtube.com/watch?v=XIOwg83B9Fg

A

www.youtube.com/watch?v=XIOwg83B9Fg

Andy4639 the problem I’m having is when I turn on my headlights the rear turn signals don’t work and the tail lights get bright. I added 2 new grounds from the frame to the bed. All my wiring is new.

Ramiro

Andy4639 · 09-12-2020, 10:18 PM

Then I would think your new wiring is not correct. You wouldn't be the first to have a wire crossed. The LED lights do not like crossed up wires.

09-09-2020, 10:06 PM	#1
Ramiro0727 Registered User Join Date: Oct 2016 Location: Porterville, CA Posts: 227	LED turn signal issues So I have United Pacific LED lights all around and my turn signals don’t work when my headlights are on but when they are off the turn signals work but as soon as i flip the switch the brake lights get bright as if you’re stepping on the brakes and don’t blink at all. I added 2 grounds in the back off the bed to frame and one off the block and frame. Thanks , Ramiro Last edited by Ramiro0727; 09-09-2020 at 10:43 PM.

09-10-2020, 07:17 AM	#2
JMD Registered User Join Date: Jun 2013 Location: Grand Rapids Michigan Posts: 291	Re: LED turn signal issues Do you have the United Pacific led flasher? I had the exact problem you are describing and I believe that was the fix. __________________ My build thread: http://67-72chevytrucks.com/vboard/s...96#post7439296

09-10-2020, 04:48 PM	#4
JMD Registered User Join Date: Jun 2013 Location: Grand Rapids Michigan Posts: 291	Re: LED turn signal issues Are they United Pacific brand flashers though? There’s something about their flashers specifically that make them work with their LED tail lights. __________________ My build thread: http://67-72chevytrucks.com/vboard/s...96#post7439296

09-11-2020, 04:02 PM	#6
El_C10 Registered User Join Date: Sep 2017 Location: Buena Park Posts: 17	Re: LED turn signal issues I've read installing a reverse polarity flasher is sometimes required. This maybe what you need. https://www.raneystruckparts.com/led...tension-wires/

09-11-2020, 04:48 PM	#7
Rich72C10 Mr. Cheyenne Join Date: Jun 2020 Location: Kyle, Texas Posts: 1,687	Re: LED turn signal issues While it will be a bit of time before I can install my United Pacific LED lights, this is what their flasher looks like. When I ordered from Speedway, they recommend this United Pacific flasher. Attached Images __________________ Richard *'72 Chevy C10 Cheyenne Super WHT/MED BRONZE/WHT SBC 350 \| TH350 \| LWB \| AC \| Buddy Seats Upgrades:** Tilt \| Front Sway Bar \| Radio \| Sliding Window \| Bed Spare w/Lock Bed Rails \| Full LEDs \| Courtesy Lights \| Tachometer \| Glovebox Lock & Light \| Head Light Relays \| *Upgraded Fully Super Trim

09-11-2020, 05:11 PM	#11
Rich72C10 Mr. Cheyenne Join Date: Jun 2020 Location: Kyle, Texas Posts: 1,687	Re: LED turn signal issues Hi Ramiro0727 - I couldn't say either way (I have my doubts). My brother still has my truck, he is finishing up a full SBC/TH350 rebuild. I am just collecting "parts" for little upgrades for it when it gets back into my hands! But I am converting all the lights to LED. I got them from Speedway and most of them are United Pacific LED. I just thought I post a photo of the United Pacific Flasher, so you could easily see it. In about two months I'll be able to feedback any issues I have or success __________________ Richard *'72 Chevy C10 Cheyenne Super WHT/MED BRONZE/WHT SBC 350 \| TH350 \| LWB \| AC \| Buddy Seats Upgrades:** Tilt \| Front Sway Bar \| Radio \| Sliding Window \| Bed Spare w/Lock Bed Rails \| Full LEDs \| Courtesy Lights \| Tachometer \| Glovebox Lock & Light \| Head Light Relays \| *Upgraded Fully Super Trim

09-12-2020, 07:38 AM	#13
Rich72C10 Mr. Cheyenne Join Date: Jun 2020 Location: Kyle, Texas Posts: 1,687	Re: LED turn signal issues Interesting jessemthompson and a good read of your thread (link below). Glad you posted that about your 72 and I'll keep that in mind when I end up doing mine. I suppose this would have the potential to correct two things: Flashing Speed and Tail light issues While this YouTube is clearly for a newer Chevy, I suppose this 25 Watt load resistor could be the fix for the Brake Light intensity issue? I suppose this would have the potential to correct two issues: Flashing Speed and Brake Light intensity. Heck I might do this and return the "Flasher" and get a few bucks back. How to Install a Load Resistor for LED Tail Lights superbrightleds.com 1969 Chevrolet C10 Pickup Load Resistors LED Light Load Resistor Kit - LED Turn Signal Hyper Flash & Warning Fix - 50W LED Load Resistor kit Current Draw 2.25A (2250mA) Ohms 6 Ohm Wattage 50 Watts O'Riley's Sylvania Load Resistors For LED Mini Bulbs (Pack of 2) Part # LOADRSLBX2 __________________ Richard *'72 Chevy C10 Cheyenne Super WHT/MED BRONZE/WHT SBC 350 \| TH350 \| LWB \| AC \| Buddy Seats Upgrades:** Tilt \| Front Sway Bar \| Radio \| Sliding Window \| Bed Spare w/Lock Bed Rails \| Full LEDs \| Courtesy Lights \| Tachometer \| Glovebox Lock & Light \| Head Light Relays \| Upgraded Fully Super Trim Last edited by Rich72C10; 09-12-2020 at 08:02 AM.*

09-12-2020, 11:19 AM	#14
Rich72C10 Mr. Cheyenne Join Date: Jun 2020 Location: Kyle, Texas Posts: 1,687	Re: LED turn signal issues Due to heat that would occur with load resistors, I am thinking about these. If I am needing them after updating to LEDs (if I have Brake Light intensity issues). Morimoto HD Load Resistor __________________ Richard *'72 Chevy C10 Cheyenne Super WHT/MED BRONZE/WHT SBC 350 \| TH350 \| LWB \| AC \| Buddy Seats Upgrades:** Tilt \| Front Sway Bar \| Radio \| Sliding Window \| Bed Spare w/Lock Bed Rails \| Full LEDs \| Courtesy Lights \| Tachometer \| Glovebox Lock & Light \| Head Light Relays \| *Upgraded Fully Super Trim

09-12-2020, 11:36 AM	#15
jimijam00 Registered User Join Date: Apr 2009 Location: PNW Posts: 553	Re: LED turn signal issues Those LED Flashers, like above, contain a load resistor.

09-12-2020, 11:47 AM	#16
Rich72C10 Mr. Cheyenne Join Date: Jun 2020 Location: Kyle, Texas Posts: 1,687	Re: LED turn signal issues Interesting, which would make sense. I am not doing bulb replacements but whole light/lense replacements from speedway. I am just reading every thread I can on this subject to be ready for anything that pops up! I'd be very happy they they all just work but I do plan to install one at a time and test as I go too! __________________ Richard *'72 Chevy C10 Cheyenne Super WHT/MED BRONZE/WHT SBC 350 \| TH350 \| LWB \| AC \| Buddy Seats Upgrades:** Tilt \| Front Sway Bar \| Radio \| Sliding Window \| Bed Spare w/Lock Bed Rails \| Full LEDs \| Courtesy Lights \| Tachometer \| Glovebox Lock & Light \| Head Light Relays \| *Upgraded Fully Super Trim

09-12-2020, 06:13 PM	#17
Ramiro0727 Registered User Join Date: Oct 2016 Location: Porterville, CA Posts: 227	Re: LED turn signal issues I ordered a pair of the reverse polarity adapters. Also I’m going to take a look at my turn signal switch. Ramiro

09-12-2020, 06:57 PM	#18
jessemthompson Registered User Join Date: Nov 2011 Location: Williamsburg, VA Posts: 960	Re: LED turn signal issues You need the reverse polarity switch for the turn signal side, but not the hazard side.

09-12-2020, 07:11 PM	#19
Bobbysgmc Registered User Join Date: Apr 2018 Location: Columbia,Tn Posts: 28	Re: LED turn signal issues I did the same thing with my truck.Had to put a couple of old style bulbs back in to make everything work right.Something about not enough voltage being drawn.

09-12-2020, 08:06 PM	#21
jessemthompson Registered User Join Date: Nov 2011 Location: Williamsburg, VA Posts: 960	Re: LED turn signal issues You have to wire in an additional 1157 plug. I did it under the bed of the truck. Just cover the bulb and wire it in before it splits between the tail lights.

09-12-2020, 10:18 PM	#25
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: LED turn signal issues Then I would think your new wiring is not correct. You wouldn't be the first to have a wire crossed. The LED lights do not like crossed up wires. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.



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