Engine starts fine but when put into reverse or drive it cuts out. Help? on 1991 Chrysler LeBaron

LeBaron has trouble changing gears up hill. It is fine on the freeway and when driving in a higher gear. When it has trouble changing gears up hill it sounds like its going to die then as I come to a complete stop it stalls. Now, it stalls every time i shift from park into reverse or drive. Any advice would be greatly appreciated! Thank you.

Asked by for the 1991 Chrysler LeBaron
seek to diagnose at AAMCO transmission for free.