Join Date: Feb 2006
Location: The depths of East Clare, Ireland
Car Year: 1999
Car Model: S Turbo
The noise is gone. It was actually a rear wheel bearing. The reason it was only audible at certain speeds is because, well, I have no idea... It became audible at most speeds as it got worse. I think I just picked it up very early because I drive a long trip once a week for work, really heating up the bearings (it includes a "mountain stage" of backroads a bit like those intended for the upcoming Irish WRC leg, which I love, so poor old Forester gets a hard time), and the last section of the trip involves sprints on dual carriageway between a series of roundabouts (which I can't resist, of course. Pedal to the metal all the way!). The hard cornering around each roundabout, followed by the hard acceleration through 3rd gear, seemed to put just the right/wrong pressure on the bearing, and then it would start moaning in protest. Eventually, though, I could hear it most of the time. Mind you, even the mechanic sitting beside me as I demonstrated the noise thought it sounded like the diff, so I guess you never know until you get the car up on the ramp.
99 Forester S-Turbo 5MT DBP