I went to Greg's without an appointment and Greg took my car in to have a look and within 30 minutes He had a diagnosis and a cost to fix the problem (ie) coil was bad and two plug wires and the spark plugs, the engine had a misfire in 1 and 5 cylinders. Greg took the time to discuss the time and the cost, and when I said that's to much $$ He went ahead and adjusted the labor down. I am very satisfied with the professional way my car was repaired. Thanks Greg I'll be back...