2002 Saturn L200 Tire wobbling

Shakes or Wobbles problem
2002 Saturn L200 4 cyl Wheel Drive Type unknown Automatic 100000 miles

My front right tire wobbles and makes a noise like a bird chirping while I'm driving. As soon as a push on the break pedal, it stops. The mechanics have looked at the brakes, the axel, and the wheel bearing and everything is fine. What else could it be?