Upper Control Arm Ball Joint Inspection

Upper Control Arm Ball Joint Inspection

Special Tools

J 8001 - Dial Indicator Set

For equivalent regional tools, refer to Special Tools (Front Suspension).





Note:
* The vehicle must rest on a level surface.
* The vehicle must be stable. Do not rock the vehicle on the floor stands.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
2. Clean and inspect the ball joint seal for cuts or tears. If the ball joint seal is damaged, replace the ball joint or upper control arm as applicable for this vehicle.
3. Support the lower control arm with a floor stand as far outboard as possible and raise the suspension until the lower control arm moves 25 mm (1 in).
4. Install the J 8001 - dial indicator , or suitable dial indicator, to measure the vertical lash in the ball joint.

Caution: Do not pry in such a way that the ball joint seal is contacted. Damage to the seal may result.

5. Apply downward force to the upper control arm and zero the indicator.
6. Apply upward force to the upper control arm and check the dial indicator. Record the measurement
7. If the dial indicator reading is more than 0.50 mm (0.020 in) , replace the ball joint or the upper control arm as applicable for this vehicle.