LS 460 AWD V8-4.6L (1UR-FSE) (2009)
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Control Arm: Testing and Inspection
Front Upper Suspension Arm
Inspection
SUSPENSION: FRONT UPPER SUSPENSION ARM (for AWD): INSPECTION
INSPECTION
1. INSPECT FRONT NO. 1 SUSPENSION UPPER ARM ASSEMBLY LH
(a) Inspect the turning of the upper ball joint.
(1) Install the installation nut to the ball joint stud.
(2) Move the stud back and forth 5 times. Using a torque wrench, turn the nut continuously at a rate of 2 to 5 seconds per turn and take the
torque reading on the fifth turn.
Standard turning torque:
3.5 N*m (35.7 kgf*cm, 30.9 in.*lbf) or less
If the value is not within the specified range, replace the front suspension upper arm with a new one.
(b) Check the dust boots for cracks or grease leakage.
2. INSPECT FRONT NO. 2 SUSPENSION UPPER ARM ASSEMBLY LH
(a) Inspect the turning of the upper ball joint.
(1) Install the installation nut to the ball joint stud.
(2) Move the stud back and forth 5 times. Using a torque wrench, turn the nut continuously at a rate of 2 to 5 seconds per turn and take the
torque reading on the fifth turn.
Standard turning torque:
3.5 N*m (35.7 kgf*cm, 30.9 in.*lbf) or less
If the value is not within the specified range, replace the front suspension upper arm with a new one.
(b) Check the dust boots for cracks or grease leakage.
On-Vehicle Inspection
SUSPENSION: FRONT UPPER SUSPENSION ARM (for AWD): ON-VEHICLE INSPECTION
ON-VEHICLE INSPECTION
1. INSPECT FRONT SUSPENSION UPPER ARM BALL JOINT RATTLE
(a) Jack up the vehicle.
