Чо за люди. Берем Чилтона и читаем:
Idler Arm
1. Raise and support the front of the vehicle safely using jack stands under the frame so the wheels are free to
turn.
Jerking the right wheel assembly back and forth is not an acceptable testing procedure; there is no control on the
amount of force being applied to the idler arm. Before suspecting idler arm shimmying complaints, check the wheels
for imbalance, runout, force variation and/or road surface irregularities.
2. To inspect for a defective idler arm:
1. Turn the wheels to the straight ahead position.
2. Position a spring scale near the relay rod end of the idler arm, then exert 25 ft. lbs. (110 Nm)
of force upward and then downward. Measure the distance between the upward and
downward directions that the idler arm moves. The allowable deflection is 1/8 in. (3.18mm)
for each direction for a total difference of 1/4 in. (6.35mm); if the idler arm deflection is
beyond the allowable limits, replace it.
