LED's don't work front and rear but will work front or rear
I replaced my rear turn signal bulbs with led turn signal bulbs and left the front marker/turn signal bulbs incandescent, the blinkers would blink but it was fast, I figured i just need the electronic flasher so I continued with my replacent and replaced the front bulbs with LEDs. The right side marker lit up bright the left side marker was dim and it caused the rear bulb to come on and stay on and when i tried to use the blinker the right side did not do anything but I heard a buzzing noise coming from the flasher relay. The left side got a little brighter but did not flash and I heard the noise coming from the flassher relay. I bought an EP-34 flasher and installed it and nothing would happen on either side I didnt even hear a sound coming from the flasher. I then removed the rear LED bulbs and replaced them with the incandescent. The right side works fine rear flashes off and on front marker is on bright and flashes brighter. The left side rear flashes normally but the front marker light is on bright and turns off and on when I turn on the blinker. Any ideas what could cause this problem? Thanks for your help.