hey i was driving my car today just crusing on the highway and i heard a wierd noise coming from the motor. i can onl hear it when its dead silent in the car. it sounds like that sound f/x sprinkle noise. almost exactly like that pixy dust sound f/x in peter pan or some s**t lol. i can hear it in every gear after 2nd, but not in 1st. what the hell could it be?