mechanic can't find the problem
I have a 2001 Pontiac Bonneville. The engine has begun to shut off while I am driving, usually around 40-50 MPH. It began last fall, very intermittently, but it has become more and more frequent. At first, I could steer to the side of the road and start it right back up. Now it doesn't want to start at all after shutting off. Nothing shows up on the computer. The mechanic first thought it was the fuel pump, but now is not so sure. Anyone have any thoughts about what it could be? Thank you so much.