Yup. Still believe in him however. He explained to me that the problem could be caused by dozens of things and that what he is doing is addressing the most common, and least expensive things first that is causing the problem. I'll go with that. Most stealerships will just replace everything, charge you a billion bucks, hopefully fix the thing, but not really know what is wrong. In my case, it is about a 70 mile drive one-way from home to his shop and as we are trying one thing at a time, it is frustrating having to go back all the time. This Wednesday, I'm dropping the car off to him and I'll tell him to just keep it, drive it a bunch in the city, take it home, until he is satisfied the problem is fixed. To his credit, he hasn't charged me anything yet for the attempts he has taken to fix the issue.