Posting on behalf of a friend, bought a 2nd hand 04 XT Forester (auto).

Do any XT owners out there have a small vibration that is loud enough to hear like a harmonic noise in the cabin, that only occurs when just on very light throttle (ie maintaining speed on flat ground), and goes away when you starting coasting (ie going down a liight incline)?

Posted here because I'm not sure if the auto box is shared among other Subies & if anyone has had the problem/knows what it is?

Car is stock as a rock (for now).