Mine sounded, like it needs oil, lol ... I did not think of making a sound.wav however from in the car it was not noticeable only if you were in front of a garage door to bounce the sound ... I took it to my local Ocala dealer they said there is something wrong, but it does not sound that bad, my volvo dealer took it to Gainesville Dodge and they said this is wrong and kept the car, after two engine teardowns, they are replacing the engine...so i am happy, still worth every penny of the 13K i paid.