I have an '08 Forester(PZEV) that I just got a few weeks ago, it has about 19,500 miles. It has a weird rattle when running at idle, it almost sounds like that noise you get when you turn the car off and the engine is "cooling off." I had it checked by the dealer who said it was "normal." He also said something about exhaust baffles and the catalytic converter causing the noise, but again, "the noise is just normal for Subarus." I'm wondering if the noise is related to the exhaust shields (which I can have removed), is related to the PZEV, or is something more serious that I should be concerned about?
Even if the noise is "normal," it annoys and concerns me.