Problems with 2001 GMC Sierra 2500HD POWER TRAIN

Vehicle stalls and shuts off while driving and idle. sometimes it starts back up immediately, other times it will just crank over but will not start. after letting it sit sometimes 5 to 20 minutes at a time it will then start back up. all research and issues with the vehicle indicate a manufacturer recall of a crankshaft position sensor. the vehicle will stall or shut off at random whether it's in motion down the highway in the middle of a intersection or at a stop sign . i have almost been t-bones due to the vehicle stalling in the middle of the intersection and i have also had to replace my drivers mirror due to the vehicle stalling on the interstate and nearly being hit by another vehicle. *tr

Transmission does not perform correctly. transmission does not engage correctly. most recent occurrence transmission shifted to neutral while being operated and would not go back into gear. transmission finally shifted to first gear, but would not change to another gear. there have been software upgrades to this transmission, but that is not considered a repair for gm. gm says there is nothing they can do because it is not under warranty anymore, but problem started before vehicle was out of warranty. vehicle has been taken to a dealership for concerns multiple times, but nothing was repaired. it was stated that was a common problem for that year of vehicle. now they think the problem is pin pointed, but the repair cost would be charged to me since it is out of warranty. *jb

While driving at any speed transmission stuck in 2nd gear. dealership repaired the transmission. *ak

Gmc 2500hd will not stop or turn sometimes ,hyatt buick says it is normal . i have a signed letter that says it is normal.incedent date is first time this happened. i need help-------