Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT TIE ROD ASSEMBLY LH

(a) Secure the tie rod assembly LH in a vise between aluminum plates. NOTICE: Do not overtighten the vise.

(b) Install the nut to the stud bolt.

(c) Flip the ball joint back and forth 5 times.

(d) Using a torque wrench and the nut, turn the stud bolt continuously at a rate of 2 to 4 seconds per turn, and check the turning torque on the 5th turn.

Standard Turning Torque:

0.49 to 3.43 N*m (5 to 34 kgf*cm, 5 to 30 in.*lbf)

If the turning torque is not within the specified range, replace the tie rod assembly LH with a new one.

(e) Check that the ball joint dust cover is not cracked and that there is no grease on it.

If the ball joint dust cover is cracked or there is grease on it, replace the tie rod assembly LH with a new one.

2. INSPECT TIE ROD ASSEMBLY RH

HINT:

Perform the same procedure as for the LH side.

3. INSPECT TOTAL PRELOAD

NOTICE:

Inspect the total preload in a no-load condition by removing the tie rod assemblies RH and LH, and steering rack boots.

(a) Install SST to the pinion shaft and turn it left and right 5 times or more. SST: 09616-00020

(b) Using a torque wrench and SST, turn the pinion shaft continuously at a rate of 4 to 6 seconds per turn to inspect the total preload of the steering gear assembly.

Standard Preload:

1.5 to 2.2 N*m (16 to 22 kgf*cm, 14 to 19 in.*lbf)

NOTICE:

Inspect the total preload around the steering rack center position.

If the total preload is not within the specified range, replace the steering gear assembly with a new one.