Left Turn Signal Problem
I have a 1986 F350 with a 6.9D I just purchased and have found some problems and one of them is the left turn signal. The socket has 3 wires out the back of it. It uses a 1157 bulb. I have power to the socket the parking light works. With the turn signal on and a test light touching the socket terminals I have power and the test light does flash. When I put the bulb in I have no signal, but do have a park light. I cut the wires and added a new socket and still the same problem. I have used 4 new bulbs. Any ideas??
Thanks, Dave


