Same here! I have yet to have a truly positive experience with a shop mechanic. I remember one time I had one of my old cars ('65 Chevelle with a 6 cylinder engine, the last g@$$er that I've owned) towed in to a shop after it died on the road. I told them to make it right...so they charged me $300 to tighten up one intake bolt (supposedly) and the car drove fine while going home. It barely ran the next day. I wound up rebuilding the carburetor to little avail (after that, it ran, but with a severe miss at idle), and eventually wound up selling the car and giving up on gasoline engines (at least I know how to repair a diesel ). To this day, I don't know what was wrong with the engine...plugs, wires, cap, and rotor were new along with the fuel filter, and the points were set properly...

The reason I mention this is because of what the shop did, and even after I went to them and told them that it wasn't fixed, they refused to even take a look at it without charging me another $100...

Primarily as a result of this, I do all of my own maintenance unless I'm incapable (with my back having serious problems, this happens from time to time)...this way, I know that it was done properly and was not rushed.