1971 F250 CAMPER SPECIAL HEADLIGHT ISSUE

[micoole]

Hi All,
I am hoping someone can help me.
I have a 1971 F250 Camper Special Sport Custom.
Its my daily driver and all was well with the lights until a few days ago when I installed one of those crappy led tail lights from Amazon.

today, while driving, the dash lights starting flickering on and off, and the relay by the glovebox - which identifies as Marker Lamp Relay - that comes with Camper Specials - was also clicking off and on pretty fast...

Pretty soon after that I lost the rear lights, and the relay trips constantly when I turn the lights on... click click click... constantly.
I think the issue started with the LEDs overheating the wiring system.
I took the LED lights out. Went back to stock and wish I never messed with them in the first place.

I read a few of these forums and people say that is it typically the light switch getting damaged because of the draw- so I replaced it. Clicking continues at the Marker Lamp Relay.

Does anyone know how to resolve this ??
This is literally driving me insane.

[DuckRyder]

I would replace the marker lamp relay and flasher relay with modern ones, and check all grounds to start.

I know they aren't cheap, but you might find my project thread of interest. toward the end.

[micoole]

Thank you for responding .

I made a new wiring harness for the rear tail lights - some really bad wiring has now been eliminated.
I drove the truck for about an hour, no clicking at the relay anymore. Lights on the dash stay on...
Its driving very happily.. but... there is still an electrical issue...


Rear passenger brake light, indicator, and hazard does not work.
Everything else works as it should...

I will buy the hazard relay today and switch it out.
I have a turn signal switch coming in about a week.

I'm hoping the issue is with either of these ... but if someone has any idea for me beyond this, I would greatly appreciate it.

[cep62]

The brake lights run through the turn signal switch , I've had luck cleaning with electric cleaner.
Also make sure you have good grounds.