[KevinH1990]

I took my 2000 Boxster (2.7L MT, 91,000 miles) to a shop on Thursday. I had heard a noise from the engine area or perhaps the passenger side rear axle. The car definitely seemed louder than normal, but that is a somewhat subjective evaluation. (I had replaced the water pump last fall, and it did not sound like the water pump failing.)

The shop owner seems to think it is either dual mass flywheel or the IMS beginning to fail. He will be taking it apart to find out.

I did see that there was a TSB on the DM flywheel,

Based on the searches I've done, if it is the IMS it sounds like most folks are favoring the LN ceramic bearing. I think it is likely that I have a dual row IMS (production date of the car was September 11, 1999), but he can verify that when he takes the car apart.

While he's working, I'll have him replace the clutch and the AOS since I've been getting a little smoke lately.

Any suggestions or comments are appreciated.