I have a no crank after warm going on. It will start fine when cold. But once warm I get no crank, as in no signal to starter. I have replaced everything and can’t figure this one out. I have replaced starter, relay on fender twice, ignition switch at bottom of column. I have a msd distributor and 6 al box and msd coil. The ignition has been on for over. A year with no problem.
When I have the no start, I was able to jump the positive terminal on the relay on fender to the wire that goes to the starter solenoid, sometimes that works, but no longer. The ground wire on the relay goes to neutral safety switch, which I replaced. I also ran a wire directly from the negative battery terminal to the ground on the relay, so as to bypass the nss. That doesn’t always work. I have replaced the fusible links with new fusible links to the relay. I have pulled the electrical connector at the firewall and cleaned out all the old gook and put in dielectric grease. I am at a loss. This is a fresh rebuild to stock with 1500 miles. Tons of money spent and this small electrical gremlin has me at a stand still.
Any ideas would be greatly appreciated. I do have the factory manual, but I have run out of patience.
Thanks for any and all help. By the way and 89 with 92500 miles