Slava Alexeev

So I have an 04 F-150 and I have LEDs in it, Brake/tail and front marker/signal bulbs. I got the LED relay and now I have another problem. If I use the turn signal WITHOUT the parking/marker lights on literally EVERYTHING flashes! Dash Back Lights, Climate Control Back Lights, and all 4 lights indicator lights on the outside of the truck so literally everything. If I have the parking/marker lights on they work as normal and only the left or right sides flash. Has anyone else had this problem??? If so how did you fix it?

laterongc

did it ever work properly since the LED addition/install ?

Slava Alexeev

No.

I had the same issue in my 00 ranger but the LED relay fixed it. It didn't on my F150 So im kinda confused on whats going on

laterongc

I’m sure you’ve considered this, but I’d go back to stock and hope it works. That way you could isolate if is bad parts. If stock no longer works then it will be more complicated diag (ie wiring problems from install). Good luck. Please update thread.

Slava Alexeev

I have the incandescent bulbs in the front and LEDs in the back with the LED relay and its working but if I put LED lights in the front turn signals the flashing of everything happens even with the LED flasher installed.
It seems like its back feeding but not sure where from and what to do as I previously said putting the LED flasher relay in the 00 ranger stopped this issue.
Going to try getting another relay and hope it is just a faulty part

2008__XL

What brand LEDs are they? Cheap Amazon ones can and will do weird things like that.

Do you have a novita EP-27 Flasher or an Amazon special? Those too can have issues.

Id highly recommend a quality flasher unit with LEDs such as Sylvania Zevo. I had that combo in the 2008 I used to have for 5+ years.

Slava Alexeev

I have the EP27 flasher. The LEDs are some generic ones from I think walmart but I dont remember.

I'll try some better LEDs and hope they are the issue.
Either that or my flasher is bad

Slava Alexeev

I tried some other LED bulbs and its good now.

The bulbs I had were just faulty

2008__XL

Thats common with the cheap no name stuff. Glad you figured it out.

artsr2002

Thanks for posting an update with the solution for others in the future.