Fusible links didnt do their job...Still not sure if it was actually the coil, doesn't make sense that it could backfeed through the harness like that... I'm more inclined to think it was the alternator since the computer was so cooked the actual traces were completely melted on the board ....
After about 20 hours tracing the engine harness I found all the shorts and she now purrs like a kitten again.(DAMN, THERE'S A LOT OF WIRE IN THE ENGINE BAY!!!)GROUNDS, GROUNDS,GROUNDS....CHECK EVERY ONE! SO IMPORTANT ON THIS TRUCK!!! a 130 amp alternator puts out power I can now say for sure...lol. I'm fortunate that the kid didn't crack the damn head so I guess there is that. All FoMoCo engine management and lots of dielectric grease and lots of swearing later and she actually chirped 3rd gear this morning....
I can only imagine what a shop would have had to charge me to fix her...it's good to be mechanically inclined!!!
It is simply amazing to see what you CAN do when you HAVE TO!!
1990 F150 Lariat 300 5 speed 3.55 ls C824's upgrade F250 3 inch leaf upgrade Centerforce II 11in clutch
silence is golden...duct tape is silver!