I just got a call from the shop. Two things--the reverse issue was because the emergency brake cable had rusted to whatever it connects to, to do its job. They will order a new cable. However, after the cable was disconnected, they took the truck for a drive to check it out and it had very little power and the check engine light was flashing. They think it could be the coil or something is shorting out because we've had constant rain since yesterday. Anyway, they'll run diagnostics on it on Monday and call Ford to talk to them about it.
So, that's it. Rusted emergency brake cable. And a totally new problem to figure out. Thanks again for the theories and the company on a rainy Saturday. God bless you all!
That is so awesome. What a rare story. Usually it's worth than you imagined, and I was imagining issues with the rear end which can be as costly as transmission work. If they have also were able to identify an ignition problem then that's going to save you a lot of money in the long run.
FWIW I love my Ford truck, an '07 F250 which just rolled over 100,000 this week and I plan on buying another one before too long.