In my 91 RS with a 305. On the ignition switch there is a pink wire that comes off of the blue plug. The pink wire burns when I turn the key to the on position I have searched everywhere for a short and cannot find one. And the two red wires on the starter are doing the same thing. Is there anyone who knows what might cause it to do this or can I go old school on the car(350,carb,coil,dis.,intake, ect.) and still have a dash that works? Can anyone give some advise?
Adam TN

 

It does sound like there may be a short to the ground somewhere. Do you have an electrical meter which can test resistance. You need one to check for a short. Finding where the short is can be dificult, you may have to run new wires.
Before doing that, disconnect the wires from the solenoid and see if you still get the problem. If not, the solenoid may be bad.
If if was a complete short, instead of a different type of fault, you would expect the fuse to blow, so you have to check that possibility too.

 

Adam,

You could go "old-school" with your fuel and control system, but the car is still going to melt wires until you find the shorted circuit.

None of the fuel system should have anything to do with your electrical problems, except possibly the fuel pump relay. Even that is fused separately, not through a fusible link, so the 20A fuse should be blowing long before the links even get warm enough to soften the insulation.

I'd suggest you start by isolating some of the major systems, like the body wiring harness and electric fan controls. Once you determine what path is causing the short, you can isolate it even further.

 

Definitely a shory to ground somewhere...

Unplug fuses that go to ignition-powered things (turn signals, A'C, etc.) one at a time until you find the circuit that's doing it. If none of them have any effect, look on the left kick panel, way up high, above the parking brake release cable; there's a terminal block sort of thing that various accessories throughout the car get their power from (power windows, power seats, etc.); unplug one wire from there at a time until it stops.

There's no real shortcuts to finding that sort of problem, except waiting until something announces its presence in terms you can't miss by setting your car on fire.