Click to view attachment The car has had a no-start-when-hot issue I've been fighting for years--so far I've replaced the ignition switch (x3 from different vendors), the starter (Tilton), the battery (Optima red-top), the harness from the battery to the starter, ground strap above the transmission, cleaned all of the other connections, installed a Ford starter relay, etc., etc.
For now, I've decided to modify the starter circuit. Fortunately, there's no cutting/drilling required--the new push-to-start switch is a nice fit in the hole where the lighter used to be. I used the lighter's +12v supply wire to the new switch, then ran a new wire from the switch to the starter relay along the original harness (bypassing the relay plate in the engine compartment in case that is part of the problem). I also added a wire from the original lighter supply wire to a new receptacle under the dash where I can plug in a 3xUSB for phone, ipod, etc.
If it works as planned, I'll go back in and put in a SPDT relay with diode/resistor to avoid any current spikes. If it doesn't, I can change it back to the original configuration with no damage done--so I've got that going for me.
There are a couple of other things I'm fixing (while I'm in there
), and I still need to get under the car to hook up the new wire. I hope to do the proverbial "press to test" tomorrow (maybe) . . . .