Well, this morning I pulled the cap and rotor and they were indeed in pretty sad shape. I ordered these parts then flushed the heater core radiator and as much of the cooling system as I could and put the new heater hose on.

I replaced the plugs and air filter. I think I will at least put an ohmmeter to the coil and pull the air cleaner and check the idle control hoses as suggested.

Thanks for the responses. I will keep everyone informed regarding the outcome.

Have a great day,