I took my car in on a Thursday afternoon and described the noise to Bill, the owner, He got one of the mechanics to examine the car. He immediately detected the problem. I left my car, received an estimate a few hours later. I okay-ed the work and was told that it would be ready by 12 noon the following day. I received a message at 12:13 pm the following day informing me that my car was ready. My car, 2003 Sonata, is now running so smoothly that it feels like a new car.