I was riding along and adjusted my edge comp box from 5 to 3 and the truck quit. I'm hoping its not the injector pump but it quit just like it was the injector pump. Also, probably not related "I wouldn't think" but yesterday my torque convertor started locking and unlocking when I was riding along in all gears and I read a thread about putting aluminum foil on the wire coming out of the negative post on the passenger side, black wire with tan stripe, I did that and it fixed the torque convertor problem.
I sure hope it's not the VP44, replaced about a year and half ago, same symtom though.