I just went through the same problem with my 13' 6.2
i was having start issues with mine, when i would stop for gas or some other quick stop (shutting off the truck) it would only turn over but wouldn't "fire"/ run.
I tried remote starting from the key, same thing. popped the hood disconnected the battery, nothing. about 15min of waiting around it would let me start!
took it to ford today, ford confirmed excessive heat at fuse F27. they installed a fuse relcation kit cleared all DTC's and set the new fuse at Fuse 70.
hope this helps someone whos having a similar problem. Merry christmas ya'll