First things first. 1988 F-350 Flatbed, I have already changed the headlight switch and a relay thinking this was the problem. The problem I'm having is when I pull on the 3 position headlight switch, the headlight come on but no running lights. The weird thing is, the first position is off the second is the running lights the third, running lights and headlights. But when I place the switch in the second position the runninglights don't come on. If I pull the switch a hair more the running lights come on but I hear a click under the hood which is the relay I already replace and it made this sound with the old one. When I pull the switch to the third and last position the running lights go out and the headlights come on. DO I HAVE A SHORT ON MY RUNNINGLIGHTS? And is that what that relay is for? To protect the headlights? I really need a explanation on what the heck is going on. I can usually figure out electrical problems but this one has me baffled!
Thanks in advance.