I'm not too happy to hear about that timing belt tensioner, but I'm glad someone had some ideas of what my problem could be. I got the extened service plan out to 100K miles so it shouldn't cost me more than $100. By the way, anyone have any clue as to how much this would cost without a service plan? Once I can get the car off the road long enough to take it to the dealer I'll let you know the details. Thanks again!