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Help with trailer lights

Posted on 11/15/13 at 6:15 pm
Posted by coonass27
shreveport
Member since Mar 2008
3620 posts
Posted on 11/15/13 at 6:15 pm
I figured the noble and smart guys of the OD board could help
I have a 16 foot, dual axl trailer. My lights have been acting weird. I figured it was a grounding issue on the ball. They wouldn't come on and then dim. It Would also do weird things like both lights would blink when the right blinker was on, completely go out when you press the break. Well after it rode on my work truck, I guess it rubbed the rust off and worked fine. Well after a week, still works fine on my work truck. Now, I hook it up to my personal truck and nothing. I bought a pig tail tester and it shows my plug on my truck is working as it should. I took the reciever off of my work truck and tried it that way and still nothing. What the hell is the issue here? Any help would be appreciated as I'm about to pull my hair out
Posted by fishfighter
RIP
Member since Apr 2008
40026 posts
Posted on 11/15/13 at 6:18 pm to
Try a direct ground wire bolted on your truck and also make sure your ground wire on the trailer has a good contact.
Posted by QuietTiger
New Orleans
Member since Dec 2003
26256 posts
Posted on 11/15/13 at 6:30 pm to
quote:

I took the reciever off of my work truck and tried it that way and still nothing.

I'm sorry if I asking the wrong questions, but are you talking about the towing receiver?
If everything is working fine with the company truck and trailer and not your truck and trailer it seems obvious unless I'm missing something.
Posted by weagle99
Member since Nov 2011
35893 posts
Posted on 11/15/13 at 6:44 pm to
Didn't read any of your post because I didn't need to.

Trailer light problems = poor grounds
Posted by QuietTiger
New Orleans
Member since Dec 2003
26256 posts
Posted on 11/15/13 at 6:47 pm to
quote:

They wouldn't come on and then dim.

quote:

completely go out when you press the break.

I'm just guessing, but it sounds like a connection/power problem to me. You are testing the terminals with your tester without a load, put one on it and the problem surfaces. JMO
Good luck.
Posted by Nascar Fan
Columbia La.
Member since Jul 2011
18574 posts
Posted on 11/15/13 at 6:56 pm to
I've had problems with a new factory installed pig tail like you speak of. Pull both trucks side by side & trace wires. Also I've had to put a bigger flasher plug in a newer truck to keep both blinkers from blinking at the same time. All in all trailer lights are APITA
Posted by Rod Farva
Spurbury, Vermont
Member since Sep 2012
1136 posts
Posted on 11/15/13 at 7:10 pm to
Sounds like a ground to me
Posted by W
Baton Rouge
Member since Nov 2007
6100 posts
Posted on 11/16/13 at 3:45 pm to
quote:

have a 16 foot, dual axl trailer


Da frick?

Two axles for only 16'?


Cut an axle.

Now
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