They are not working correctly…No left turn…One of the break lights won’t come on…One of the running lights goes on and off…Who in the SE metro works on this sort of stuff to get things right???RR
Sounds like a ground problem…
Check both the wiring and the blub sockets
Make sure everything is clean
Check your grounds to be sure youhave good contact. Replace the bulbs if you have any doubt on their condition. If you cant figure it out, shoot me a pm and I might be able to swing down to find your problem.
Any possibility of mice getting into the wiring? Sometimes they can get intrusive in winter storage.
Also don’t forget to check your truck wiring too….
I spend hours upon hours looking over my trailer wires and grounds and never could figure it out….
Never once looked at the truck wiring…..
I Bought a new truck on friday and all the trailer light problems went away. 
Sounds like ground issues to me…
What did you buy Slop?
Sounds like I have a ground issue to look into. Thanks for the offer Fisher Dave! RR
RR, Check this out:
If you’re in IGH then we’re neighbors. I can swing by and give you a hand with this.
Rootski
what type of vehicle is it? i know that slop had a dodge, if he had the same problem then i think we might be on to something. my buddy has a Chrysler, and the trailer lights on his trailer don’t work and we tried pulling my boat with his vehicle and we had the same problem. Chrysler me have a problem with their wiring, i would check the vehicle…
Ford F-150…Rootski, great looking article! I will be getting the boat outa’ storage Saturday and will play with the lights. If I can’t get it fixed I’ll send you a PM and have you stop by if it works in your schedule. I pay with cold beer 
! Thanks both Dave and Rootski for offering to help 
!!! RR
I had some trouble this year with corrosion in the plugs. I used a Dremel tool to clean up the pins and sockets and that fixed it. Connections really shined up nice.
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