Help, stuck at work! Went to start this morning and had to boost it. Got it running but wont go into high idle and quits when you press throttle. It is cold here -35°c or -31°f. Was plugged in. Batteries wont start truck after it dies, even after idling for 45 mins. Alternator seems to be working showing good voltage at guage. Running Mobile 1 5-40 syn oil in it. One other thing that happened was key got stuck in start position, and when I turned it back went too far and went to off position but turned it back to run before it quit, not sure if that would hurt anything but thought I would mention. Thanks for helping!