you may never know it is detonating while its doing it. sometimes in rare occurances you can hear it but never rely on that for a true sign. spark plugs are the best indicator. they will have white specs all over them.Krylonking wrote:well my friend said it wasnt detonating , ive never heard a car do it so i dont know what it sounds like and i dont know what the symptoms of it are , but my friend ,who knows what he is talking about said it wasnt detonating , btw what are the signs of detonation