I know which sound to look for as far as the tensioner goes, and i can hear it a tiny bit on deceleration, I have 55K miles, so by the time its due for a timing belt then itll prolly be due for the tensioner as well, so if Im doing a timing belt then will it still be a pain like you are saying drift or not, also the sound im hearing which is a lil louder when the car is cold could be the CAI its like a rrreee sound under partial throttle.....