Van sat idle most of the winter. Started up fine, then died after a few minutes. (This happened the previous year, but problem "fixed itself".) There is no spark. I get about 70 millivolts at coil with ignition on. The PCM diode seems to be good and there's power to it. Already wasted money on an ignition switch. I have no decent wiring diagram. Where does the coil wire come from? How to troubleshoot from here? Thanks...

 

I noticed I could get a better look at the coil connector if I unplugged a couple of things and pulled the harness back into the cab. Found a broken wire at the radio noise suppressor. All fixed.

 

My 97 f150 4.2L v6 is not getting power to my cool pack. Because I'm not getting any spark. Recently just did a head gasket repair

 

In my case, the trouble turned out to be a broken wire at the radio interference suppressor (mounted above the bell housing).