I own a 1988 760Tic and when I am in parking lots moving slowly...foot either not touching either pedal or lightly feathering brake pedal I hear this strange vrrrrrrrrrrrr sound which is quite loud coming from the front of the car. Any Ideas ? By the way for those of you who read my previous post ! my sisters car did indeed have oil in the coolant. But we have decided to send it off on a 3 hour journey to the only good volvo mechanic and long time friend we know for the final word on its condition. Your comments and suggestions were very helpful ! Thank You !