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Old 09-09-2020, 10:06 PM   #1
Ramiro0727
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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.
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Old 09-10-2020, 07:17 AM   #2
JMD
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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.
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Old 09-10-2020, 11:54 AM   #3
Ramiro0727
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Re: LED turn signal issues

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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
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Old 09-10-2020, 04:48 PM   #4
JMD
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Re: LED turn signal issues

Are they United Pacific brand flashers though? Thereís something about their flashers specifically that make them work with their LED tail lights.
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Old 09-11-2020, 12:17 PM   #5
Ramiro0727
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Re: LED turn signal issues

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Are they United Pacific brand flashers though? Thereís something about their flashers specifically that make them work with their LED tail lights.
JMD, not sure which brand my son purchased.

Ramiro
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Old 09-11-2020, 04:02 PM   #6
El_C10
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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/
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Old 09-11-2020, 04:39 PM   #7
Ramiro0727
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Re: LED turn signal issues

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Originally Posted by El_C10 View Post
I've read installing a reverse polarity flasher is sometimes required. This maybe what you need.

https://www.raneystruckparts.com/led...tension-wires/
EL_C10 i have one of those flashers with the ground cable. The one my son ordered didn't come with the lower base.

Ramiro
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Old 09-11-2020, 04:48 PM   #8
Rich72C10
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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.
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Old 09-11-2020, 04:58 PM   #9
Ramiro0727
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Re: LED turn signal issues

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Originally Posted by El_C10 View Post
I've read installing a reverse polarity flasher is sometimes required. This maybe what you need.

https://www.raneystruckparts.com/led...tension-wires/
EL_C10 i have one of those flashers with the ground cable. The one my son ordered didn't come with the lower base.

Ramiro
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Old 09-11-2020, 05:02 PM   #10
Ramiro0727
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Re: LED turn signal issues

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Originally Posted by Rich72C10 View Post
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
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Old 09-11-2020, 05:06 PM   #11
Ramiro0727
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Re: LED turn signal issues

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Originally Posted by Rich72C10 View Post
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
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Old 09-11-2020, 05:11 PM   #12
Rich72C10
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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
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Old 09-11-2020, 06:30 PM   #13
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Re: LED turn signal issues

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Originally Posted by Ramiro0727 View Post
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. Iíll let you know.
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Old 09-11-2020, 07:59 PM   #14
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Re: LED turn signal issues

Quote:
Originally Posted by Ramiro0727 View Post
So I have United Pacific LED lights all around and my turn signals donít 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 youíre stepping on the brakes and donít 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.
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Old 09-12-2020, 07:38 AM   #15
Rich72C10
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Arrow 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
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Old 09-12-2020, 11:19 AM   #16
Rich72C10
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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
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Old 09-12-2020, 11:36 AM   #17
jimijam00
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Re: LED turn signal issues

Those LED Flashers, like above, contain a load resistor.
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Old 09-12-2020, 11:47 AM   #18
Rich72C10
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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!
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Old 09-12-2020, 06:13 PM   #19
Ramiro0727
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Re: LED turn signal issues

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

Ramiro
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Old 09-12-2020, 06:57 PM   #20
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Re: LED turn signal issues

You need the reverse polarity switch for the turn signal side, but not the hazard side.
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Old 09-12-2020, 07:11 PM   #21
Bobbysgmc
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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.
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Old 09-12-2020, 07:14 PM   #22
Ramiro0727
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Re: LED turn signal issues

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Originally Posted by Bobbysgmc View Post
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
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Old 09-12-2020, 08:06 PM   #23
jessemthompson
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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.
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Old 09-12-2020, 08:17 PM   #24
Ramiro0727
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Re: LED turn signal issues

Quote:
Originally Posted by jessemthompson View Post
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
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Old 09-12-2020, 08:26 PM   #25
Rich72C10
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Re: LED turn signal issues

here is a wiring diagram - I assume the colors are correct - I got it from another thread that I have saved on this subject. Posted by Andy4639

Information needed on LED side marker lights

boo - its a thumbnail and you cannot see the original size but you can get the full size from the thread above.
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