While driving my 2001 Bonneville last evening I started hearing this noise coming from the front of the car. It sounds about like a bad heater fan of years past. It goes up in frequency with the road speed. When the car is not moving there is no noise. It's not the AC, the blower, or the engine. You can't hear it till about 25 MPH then the faster you go the faster it sounds. I put it on the rack today and pulled both front tires. Brakes look like new, rotors are good. I could see nothing wrong with either axle shaft. Turning the wheels on the car produced no sound. But the front suspension was hanging down so it was hard to tell anything like that. Tires look good. Car runs down the road like butter, drives great, stops great, feel nothing in the steering wheel at any time out of the ordinary.
I'm thinking it's got to be in one of the axle shafts or the transaxle.
Has any of you techs heard of this before????
Thanks.