Steering Knuckle Seal Inspection
The knuckle seal used at the spherical sliding joint between the knuckle and the inner case accomplishes the additional purposes of keeping out road dust and of acting as the damper for the steering handwheel. As the wear of this seal advances, its damping effect decreases and thus make the front wheel develop a tendency to “shimmy” not only that road dust begins to creep into the sliding clearance to promote the wear of the spherical sliding surfaces.
Check the knuckle seal for wear or damage. If defective, replace with new one.