Recently my wife’s Saturn began having problems. We took it to a local dealer for repair. After hooking it up to their computer they found a couple of parts needing to be replaced. This did not solve the problem. They suggested it might be an exhaust issue. So, off to the exhaust shop I go. The Catalytic Converter and Muffler were replaced and this seemed to help, a bit. Next stop was for new plugs and wires. It runs smoother and has more pep. Whenever, I have mechanical problem with either of our vehicles, I’m going to Auto Tech.