Vibrating Steering Wheel on 2003 Ford Explorer

Currently, I have a "shimmy" in my steering wheel. What may be causing this?

Asked by for the 2003 Ford Explorer
If the shimmy is at highway speed when going a steady say 55-65 mph, it is usually a wheel balance problem. If the shimmy happens when braking, especially from higher speeds, it is usually caused by warped rotors. When does the shimmy occur?
1 more answer
Likely need your front wheels balanced if tires are good. Always run best tread on the front and have them balanced and rotated at every other oil change.