Trailer Lights?????

Had a few issue with my trailer lights, replaced one left tail light, damaged last year pulling the boat out duck hunting.Heres the problem replaced the new light as mentioned cleaned all the ground connections and replaced 1 signal marker bulb in the right light. Checked everything all is good signal,brake,hazard all working fine. Took it for a spin around the block to get gas for the boat, come back to the house recheck all is good. Disconnected the trailer from the truck to run some errands, come back and hookup the trailer check lights. Problem.When i turn on my left signal lights both left and right flash at the same time and very weak at both lights, same as when i turn on my right signal light both flash. WTH. AS i said cleaned all the ground connections, it worked fine, reconnected the trailer now i have issues. Any suggestions thanks cuda.

Sounds like a bad ground issue...make sure to run a line from the vehicle to the trailer on fresh drilled/scrapped connections, don't rely on the ball connection.

note: A quick check put your booster cable clamp to the vehicle frame and then to the trailer frame..see if the trailer lights work.

Do you have a converter? They do go bad.

Buy one of these:

http://www.princessauto.com/en/detai...er/A-p8196990e

I agree with MikePal.....check the ground connection...

Sounds like a ground to me too.

Agree 100% it's a bad ground. Use a stainless bolt to anchor the ground wire and after tight give it a coating of rustproof undercoating spray to keep crap from getting to the connection

One one of my boat trailers, the tounge of the trailer is actually bolted (not welded) to the rest of the frame. I used to have constant ground issues until I ran a wire between the tounge and the rest of the trailer frame. What you describe is 100% what I had.

Quote:

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Originally Posted by scarkner

One one of my boat trailers, the tounge of the trailer is actually bolted (not welded) to the rest of the frame. I used to have constant ground issues until I ran a wire between the tounge and the rest of the trailer frame. What you describe is 100% what I had.

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Exact same setup on my boat trailer and same thing I did to resolve the issue.

What everybody has said above is probably whats happening, bad ground, a cheap and inexpensive upgrade also for your trailer would be to get the LED lights from Princess auto and ditch the old style 1157 light bulbs, the bulbs and the sockets for those lights are not very reliable, I'm not saying that has anything to do with your problem, its just a reliable upgrade

Solder every connection, stay away from those blue squeeze connectors, use heat shrink, coat any ground lugs with grease and always suspect your ground as the cause of your problem......