why would the transmission get hot and stall the car
car transmission get hot up to about 218 and the car loses power then after it sits for a while and cools down then it will start.
Are you sure it's the transmission getting hot and not the engine?
If your trans is getting that hot it won't last long, the fluid most likely has lost most of its protective additives, take to a shop right away before you completely toast it.
Search Pontiac Grand Prix Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Pontiac Grand Prix Experts