My 90 makes an acute squealing sound from the right-front of the car when
driving in cold weather. The sound begins when I first drive the car after
it has been sitting for awhile and it attenuates after about 5 minutes of
driving. This sound is only present in really cold weather; above 30 F
or so it just isn't there. The brakes are fine. Could it be a wheel
bearing or just the cold weather (around 0 F) screwing with something? It
seems to me that when a wheel bearing is getting ready to go ka-put it
kinda makes a chronic grinding sound...