I can tell you that mine does it with and without the clutch engaged. Almost never while the car is still though. If I'm driving in say 3rd gear and I'm in the affected rev range, I can engage and disengage the clutch and as long as i keep on the gas a little, the sound is there.
I'm going to try to get a sound clip of it this weekend. I've got a remote mic that I can put in the engine bay.
As far as taking it to the dealer, I'm trying to avoid that as long as possible because it's such a hassle and as one of the posters above mentioned, they tend to pull crap like say...
This is a great description of the issue.
I just got back from East Texas. The rattle was still there at the end of that 200 mile drive. The thing that concerns me most is that the RPM range that the noise occurs in is right in the cruising range for the car. No matter what it is - piston...
I hear the rattle from around 2-3k even after the engine is warm. It's quite noticeable. Not sure if it's valve train or perhaps something under the hood is resonating. I can easily modulate the sound with the throttle. Seems to only happen under load but I havent tried to repro it yet with the...