In what I'm sure is extremely rare, my problem was misdiagnosed. I call the office and informed them of the situation. I was told to bring my car back in and they would see what went wrong. It turned out that my problem was much more complicated than the original diagnosis. Because it was their mistake, they correctly repaired the problem. The cost of the second repair was double the original and they did the job at no additional cost to me. They accepted their responsibility in a professional manner. I judge auto repair shops by their honesty and I must highly recommend New Concept Auto.