My 01 Monte has 130,000 miles on it and recently developed a buzzing sound from the front end that varies with speed. It almost sounds like something is rubbing a tire but I cant find any evidence that. It makes this noise at any speed above about 5 mph and there is a tiny bit of feedback in the steering wheel.

I looked at the half-shafts and the boots are all good and otherwise everything seems A-OK. There is no clunking as one would expect with a bad CV joint so I dont think it's that.

Any ideas?

 

Since it's noticed ONLY when the car is in motion, my guess would be one or both front wheel hub assembles, the bearings may be failing. When they do, the sound can be described as whining or howling and gets louder with speed.

 

Also you can jack up the front end so the wheels are off the ground...
Grab the tire at the top and bottom and check for any excessive play in the wheel assy (hub)... rocking it up and down and side to side...But That sound
is usally the sound it makes when a bearing/hub is failing.