I have this alarming noise that I first noticed while driving home from work a couple of days ago. It sounds sorta like a distant helicopter. Today on the way to work it sounded like high speed dribbling, and it seemed worse. Yesterday, it was hardly noticeable. If it weren't for the vibration, I could solve it by turning up the radio, but now my rear view mirror is shaking so much that things are blurry, and I am afraid a wheel might fall off. The source seems to be from the front driver side. After popping the hood the day after the noise began, we observed liquid apparently leaking from the engine mount on the driver side mount. We therefore diagnosed the problem as a degraded engine mount and I ordered a new one. However, I noticed today that while coasting with the engine off, the noise and pulsing is still present. With the engine off, it definitely sounds like a rubbery scrunching noise when rolling. Other clues are that when I first noticed it, it seemed to intensify when turning to the left, and it would diminish under braking and acceleration. Now, it seems to be quite strong when turning right at high speed, and it is present during acceleration as well as normal cruising, however, it virtually disappears under braking. It seems to me to appear once per revolution of the wheel above a certain speed, but sometimes it goes a way. I can feel the pulsating through the steering wheel and gas pedal. The problem is definitely worse at high speed. The next test I have yet to perform, will be to jack it up and spin the wheel to see if I can duplicate any of the symptoms. My gas mileage seems minimally affected if at all. I also have grinding in first and second gear and must now shift by double clutching. There are now 166569 miles on the odometer. Does anyone have any ideas, or have any of you seen this before?