1972 Skylark. Both quit. Worked one day, not the next. Power at the fuses, both fuses are good. Everything else still works. Any ideas?
Have a Chassis Manual ? Thinking there might be a common ground path or connection point for the ground.
When you say heater, do you mean the blower motor isnt working? Does the blower motor work on high but not the other speeds or nothing at all?
Oddly enough, the blower worked in every speed except high. It is a factory a/c car if that changes anything. If it was a ground issue, why would everything work one day, not the next?
Because its an AC car, theres a blower motor relay on the firewall. You have a 10 gauge red wire supplying power. And there's a black/ orange wire off the relay going to the blower motor. Check power at the black orange wire. Likely a bad relay.... Trying to figure out the commonality with the turn signals..not sure there is. Dumb question....are you sure its not just a bad flasher? Do the hazards work? If so, try swapping the hazard flasher and the turn signal flasher. Then see if the hazards stop and the turn signals start working
Good call, I wondered about the flasher too. I'll swap one out and see. I'll check for voltage at the blower, but if there isn't any is it most likely the blower resistor in the a/c firewall/cowl?
