CAR shuts off while driving, no matter how fast or slow it will stop on 2001 Buick LeSabre

I have 2001 buick lesabre that will shut off while driving no matter how fast or slow.. it will eventually crank either right after it shuts off or either minutes to hrs dwn the line. a light appears on the dash that says volt. I have had the fuel pump, ignition control valve,crank shaft, sensors, transmission replaced,gasket manifold etc. It doesnt run hot. what could be the problem. It doesnt read any codes and no other lights appear on the dash, the only light is when the car shuts off (VOLT)...

Asked by for the 2001 Buick LeSabre
the "Crankshaft Position Sensor" did it for mine! drives great!
2 more answers
I have a 2000 Buick that does the same thing. I have not figured it out either.
just sale it then