95 olds ninety eight dies/ starts right back up year old problem no one can fix

There are so many things that can be causing this. Did the shop tell you if it set trouble codes?

I had this sort of problem with an 89 Buick Regal, and after several trips to the selling dealership garage, I got with the Buick technical people. On this model, the zone rep KNEW the cause because it had been published in a service bulletin. The computer series had a run of faulty semiconductors.

I had a similar problem with a Ford once, and it was the ignition switch.

My experience on this one may well not relate to yours at all, but I would suspect electrical issues, possibly bad or intermittent connections, and possibly even the powertrain control module.

No codes have been set ay time

Thanks

Well, we share this common factor as well. Mine never set a code either.

A friend of mine had this same problem, except it did not always start up immediately. Mechanics could never find the offending part. Last time it failed him in front of a Toyota dealership, HE fixed the problem.

Seriously, there are lots of places where ground wires can go bad, or connectors can get dirty or loose. At some point you may have to resort to "trial and error" parts replacement, and that gets very expensive. Start with the cheaper stuff first. (Dealerships and independent garages sometimes have to do this too...It really tends to piss a guy off).