DEFINITION: The vehicle front wheel shimmies or shakes while driving on a smooth road

The tire and the wheel are out of balance

Balance the tires. Refer to Tire and Wheel Balancing in Vibration Diagnosis and Correction.

The tire and the wheel are out of round

Inspect the runout. Refer to Tire and Wheel Runout Measurement in Vibration Diagnosis and Correction.

There are worn wheel bearings

Replace the wheel bearing and hub assembly. Refer to Front Wheel Bearing and Hub Replacement in Front Suspension.

There are worn ball joints

Replace the ball joints.

There is a malfunctioning shock absorber

Inspect and replace the shock absorber if needed.