I'm working through the dreaded electrical gremlins on my '78, one of which is that the front driver side turn and marker lights don't light up. I have power going in to the housing from the two wires in the engine bay (one always 12-ish volts when the light switch is pulled that powers the front and side marker bulbs, and one that alternates 12v/0v for the turn signal bulb). If I manually ground the inside of the housing the lights work like they should. I don't see a ground wire anywhere, so I assume the housing grounds directly to the body somehow. Is that right? I haven't been able to take the housing off the truck to clean it up because the nut is very rusted underneath the fender.
Any suggestions on what to do? I could cut the housing off and get a new one, keep at it with PBblster (maybe add some heat), or just run a new ground wire from the housing to somewhere inside the engine bay.
Suggestions welcome!
Any suggestions on what to do? I could cut the housing off and get a new one, keep at it with PBblster (maybe add some heat), or just run a new ground wire from the housing to somewhere inside the engine bay.
Suggestions welcome!