okay, I just picked up a 2001 SS camaro. yay for me right? well, I know that the engine has a normal amount of piston slap as most of them do, but do any of you hear a similar noise when shutting the engine off? It is like, 2 or 3 revolutions away from a dead stop and there is a faint but audible "klac klac" right before the engine is fully stopped. Normal or not? The car has 63000mi on it and was taken very good care of.