Left signal works until I turn headlights on then it stops flashing and gets bright.When I unplug socket it flashes .I ground it gets bright Volt meter has 13.50 until I turn headlights on it goes to 12 volts
I'll go with Craig on this. It is difficult, but possible to get the bulb in wrong! I'm also assuming this is the left rear signal? When you pull the socket out, you lose the ground and the current back flows through the other lights. It is also possible the socket is wired wrong or the wrong bulb is installed.
turn signal I had put one wire regulater on and didn't ground it I thought it being bolted to the engine was OK. I guess you could call it a two wire regulated. Thank for the input.
turn signal Found problem when l was re doing the wires back lights got them crossed up. Fix now. Thanks for the responses that I received.