My older Fords with carburetors had the ICM mounted on the inner fender, well away from the engine and I have had a couple of them up and quit with no warning. I have also had them last the very considerable life of some cars too. Just one of those things.
Pat....my 85 Squire does almost the same thing....till it finally gets sudo warm then it'll keep running My Ford tech buddy days its usually the fuel pressure sensor ...but my old 85 Marquis...had a crappy ignition switch...it would start BUT as soon as you let go of the key..it would die !!! It was crappy contacts in the ignition switch housing from sitting for so long....they had just corroded ! took it all apart..cleaned everything and Badabing.....go figure?
Man, if you're going to that extent, you might as well pop in a new one for about $20 or less. Even my '79 Ranchero GT got a new switch this last Summer, as you have to remove the cluster (this is where 'cluster****' comes from...they obviously had a late '70s Ford intermediate) to access the switch. I've done the switches for my '83 Merc wagon, my '87 CV and my bro's '83 Ford wagon. As for the '70s ignition modules, I simply think you'll either be lucky or not; but carrying one, regardless of years, does help. At least the big ones are plug 'n' play.
well...if the "switch fairy" did deliveries I woulda at the time..it was the only 'plated' form of transportation...it got a new one about a year later
Not for this switch, but for the CP's alternator I had to walk to the parts store several years ago. Dirty, slick mofo, raining, and I walked almost 30 blocks one way to get to the parts store to exercise the warranty. The Alternator Fairy took the day off, the lazy bum.