Why would an Oldsmobile Intrigue sometimes shut off while driving?

Answer 1

Shutting Off While DrivingThe GM engine controller has several modes that, depending on sensor inputs, will shut off the engine to avoid catastrophic failure, such as out of oil, overheating, or severe ignition timing offset. Did the "CHECK ENGINE" light illuminate? Check the codes for free at Autozone. That will give you some possible culprits. If the "CHECK ENGINE" light did not light, and the car continually does this, I'd suspect the controller itself.

My car did the same thing could not find the problem took us several trips and hundreds of dollars then my cars dash started flashing all lights on and off on the dash like a strobe light it was the ignition switch there is a video on you tube videos posted about this that will show how to take off the dash and replace it several times I found myself going anywhere from 40mph to 60mph and the car shut off on me it no longer does this and the dash lights work fine.