UPDATE:

Took the truck back down to the transmission shop and had them check it out. They diagnosed the problem as a bad Govenor and Pressure Solenoid. It didn't throw any codes but the truck won't drop out of second gear even though it really wants too when I come to a stop. Thank goodness for full warrenties. I'm kinda dismayed that its already back in having repair work done after only 2500 miles, but hey, at least it didn't crap out on me up in the mountains. That tow bill would have killed me. Will let everyone know how she runs when I get her back this afternoon.

thanks for everyone's input.

 

Just picked up the truck from the transmission shop. I am glad to report, after they changed out the Govenor and Pressure Solenoid, all is well. Why it crapped out is anyones guess. But they picked up the tab like they should and didn't try to give me any BS so, I'm happy. Anyone in Colorado Springs want to trail ride on Sunday?

Again, thanks for everyones input.