V70 L5-2.4L VIN 61 B5244S (2004)
Steering Gear: Customer Interest
Steering - Knocking/Thumping/Clicking Noises
NO: 64-21
DATE: 5-3-2006
YEAR/MODEL/CHASSIS: XC90, MY03-, 000690-
S60 (incl. R-line), MY04-, 315000-
V70 (incl. R-line), MY04-, 349000-
XC70, MY04-, 123000-
S80, MY04-, 335000-
SUBJECT:
Steering noise, yoke adjustment
DESCRIPTION:
Under certain conditions a knocking, thumping, or clicking noise may be heard from the steering. The noise may be heard as a metallic or hydraulic
noise. The noise can be heard under the following conditions:
^
Driving on uneven roads or other large imperfections in the road, especially during right-hand turns.
^
When stationary, turning the wheel quickly from side to side. The noise may be heard with the engine on or off, and may also be felt in the steering
wheel.
^
Driving at slow speeds and turning the steering wheel back and forth/left and right. The noise can become louder when there is increased torque with
the steering wheel movements.
SERVICE:
If there is a verified customer complaint of the above-described noise, first check the front end for wear, and rule out any other possible sources of this
noise. If it is determined that the noise is coming from the steering gear, an adjustment of the steering yoke can be made. Follow the procedure below.
Note!
This adjustment must only be carried out once. As stated at the end of this procedure, after this adjustment is made the adjuster screw should be
color-marked in white. If there is a white color mark, this means that the adjustment has already been made, so do not adjust the yoke again.
Adjustment
Raise the vehicle so that the wheels hang freely.
Note!
The adjuster screw must only be turned a maximum of 4 index marks from its original position in a clockwise direction as described below.
Remove the protective cover from under the engine.
Disconnect the connectors for the heated oxygen sensors (HO2S) from the subframe, and on the V8, bend any protective plates aside, so that the adjuster
screw is visible. Make two ink marks, one on the edge outside the adjuster screw, and an adjacent mark on the screw itself, to establish original position
(1 and 2 in the illustration). Bend the anti-roll bar out of the way slightly using a pry bar. This is so the 17mm socket can fit onto the hex head of the
screw. Then tighten the adjuster screw 2 index marks in a clockwise direction. Check that no unusual stiffness or blockages occur in the steering gear
when the wheels are turned from side to side to their limit positions. If this occurs turn the adjuster screw back 1-2 marks.
