1990 Oldsmobile Ciera 6 cyl Front Wheel Drive Automatic
After Car is driven for 20 -30 min, When you slow down it feels like transmission doesn't shift down, so when you step on the brake as the car comes to a stop the engine dies, if you leave it in neutral or park engine will stay running, but if you put in in drive the engine gets lugged down and dies instantly. If you let car cool down it will drive fine for another 10 -30 Min. Thanks for any help.
Sounds like the torque converter is faulty, you can try disconnecting the torque converter solenoid, located on the transmission. It may or may not work and your fuel consumption would be high, but it would get you from point a to point b until you can have it fixed.