Car Loses Power, Slows Then Stops

I know this sounds like a transmission problem, but it is more likely a mechanical problem. From the sound of it — since there are so many potential candidates. I’d speculate that the problem is somewhere in the ignition. I would have the fuel injection system looked at closely, as well as the computer control modules.

It is possible that the emissions control system or a piece of it is fouling. I’d suggest having the catalytic converter checked and it might not be a bad idea, while the technician is under the hood, to have the compression checked, as well. Your engine might have a ring seal problem or it could have a valve problem. Or it could be something as simple as a blown head gasket, whose symptoms are very close to your description.

It is possible that your transmission’s control module has gone, but I don’t think that’s the case.

Let me know what you find out. I’d be interested to hear. As I said, there are so many candidates that might cause this problem that it’s hard, without pulling the diagnostic code from the engine control computer or without putting the engine through some very sophisticated tests, to know the exact problem.