One problem related to engine stall has been reported for the 1996 Cadillac Deville. The most recently reported issues are listed below.
Engine stalls at 30 mph after letting off of the gas. Losing all power assist the steering and brakes as it did this weekend on a mountain road in ar. While slowing down for a 10 mph curve. . . . If my wife had been driving she cound not have made the turn and been down the mountain side !!! this problem has persisted sinc e arround sept 2000. Most of the time they cannot duplicate problem. Last time I left the car for several days. When it stalled they replaced the crank sensors, now it stalls at 30 mph instead of at stops only !!!.