Re: Starting 68 Mustang after 33 years
Iowan gave you the right answer, but the "why" is the solenoid feeds the ignition while cranking, then when you release the key, the resisted run circuit takes over.
For whatever reason, when you release the key, the run circuit seems to be dead. Check for power on the pos side of the coil sitting there key on, engine off. If none, need to find out why. Could be ignition switch, could be wiring, also make sure the small wires are connected to the battery side large post of the solenoid, that feeds the inside of the car with power
70 Sportsroof, 427 FE/489 cid, TKO-600, 31 spline 4.10, A/C. modified Mass-flo EFI/reprogrammed A9L/CnC ported Victor.