2007 TOYOTA SIENNA Steering

POWER STEERING – RACK AND PINION POWER STEERING GEARPS–37
PS
(i) Using SST, hold the rack guide spring cap and using
another SST, torque the rack guide spring cap nut.
SST 09616-00011, 09922-10010
Torque: 48 N*m (489 kgf*cm, 35 ft.*lbf)
NOTICE:
Use SST 09922-10010 in the direction shown in
the illustration.
HINT:
Use a torque wrench with a fulcrum length of 345
mm (13.58 in.).
(j) Precheck the total preload.
Torque: Preload (turning)
1.2 to 1.5 N*m (12.2 to 15.3 kgf*cm, 10.6
to 13.3 in.*lbf)
(k) Remove the RH and LH steering rack ends sub-
assembly.
(l) Apply MP grease to the control valve, as shown in
the illustration.
(m) Wind vinyl tape around the serrated part of the
control valve.
(n) Install the dust cover onto the control valve housing.
F041518E01
F040555E08
F040538E10

PS–38POWER STEERING – RACK AND PINION POWER STEERING GEAR
PS
11. INSTALL STEERING RACK END SUB-ASSEMBLY
(a) Install 2 new claw washers, and temporarily install
the 2 steering rack end sub-assembly.
HINT:
Align the claws of the claw washer with the power
steering rack grooves.
(b) Using 2 SST, install the 2 rack end sub-assembly.
SST 09922-10010
Torque: 58.5 N*m (597 kgf*cm, 43 ft.*lbf)
NOTICE:
Use SST 09922-10010 in the direction shown in
the illustration.
HINT:
• Using SST, hold the power steering rack and
install the rack end sub-assembly.
• Use a torque wrench with a fulcrum length of 345
mm (13.58 in.).
(c) Using a brass bar and a hammer, stake the 2 claw
washers.
NOTICE:
Avoid any impact to the power steering rack.
12. INSPECT STEERING RACK END SUB-ASSEMBLY
(a) Ensure that the rack end sub-assembly hole is not
clogged with grease.
HINT:
If the hole is clogged, the pressure inside the boot
will change after it is assembled and steering wheel
is turned.
13. INSTALL STEERING RACK BOOT NO.2
14. INSTALL STEERING RACK BOOT NO.1
15. INSTALL STEERING RACK BOOT NO.2 CLAMP
(a) Using SST, tighten the rack boot No.2 clamp, as
shown in the illustration.
SST 09521-24010
Clearance:
3.0 mm (0.118 in.) or less
NOTICE:
Be careful not to damage the rack boot No. 2.
16. INSTALL STEERING RACK BOOT NO.1 CLAMP
SST 09521-24010
F041576E01
C035928
C063521
F040556E07

POWER STEERING – RACK AND PINION POWER STEERING GEARPS–39
PS
HINT:
Perform the same procedure on the other side.
17. INSTALL STEERING RACK BOOT CLIP
(a) Using pliers, install the 2 rack boot clips.
18. INSTALL TIE ROD ASSEMBLY LH
(a) Screw the lock nut and tie rod assembly onto the
rack end sub-assembly until the matchmarks are
aligned.
HINT:
After adjusting toe-in, torque the lock nut.
19. INSTALL TIE ROD ASSEMBLY RH
HINT:
Perform the same procedure on the other side.
20. INSTALL STEERING LEFT TURN PRESSURE TUBE
(a) Coat 2 new O-rings with power steering fluid and
install them onto the left turn pressure tube.
(b) Using SST, install the left turn pressure tube onto
the power steering gear assembly.
SST 09023-38201
Torque: 11.5 N*m (117 kgf*cm, 8 ft.*lbf)
HINT:
• Use a torque wrench with a fulcrum length of 345
mm (13.58 in.).
• This torque value is effective when SST is
parallel to the torque wrench.
21. INSTALL STEERING RIGHT TURN PRESSURE TUBE
SST 09023-38201
HINT:
Perform the same procedure on the other side.
22. INSTALL RETURN TUBE NO.2
(a) Using SST, install the return tube No. 2.
SST 09023-12701
Torque: 22.5 N*m (229 kgf*cm, 17 ft.*lbf)
HINT:
Use a torque wrench with a fulcrum length of 345
mm (13.58 in.).
INSTALLATION
1. INSTALL RACK & PINION POWER STEERING GEAR
ASSEMBLY
(a) Install the power steering gear assembly with the 2
bolts and nuts.
Torque: 70 N*m (714 kgf*cm, 52 ft.*lbf)
D029981E02
D030601E01
D029979

PS–40POWER STEERING – RACK AND PINION POWER STEERING GEAR
PS
2. CONNECT PRESSURE FEED TUBE ASSEMBLY
(a) Connect the pressure feed tube assembly to the
power steering gear assembly.
(b) Install the clip.
(c) Using SST, connect the return tube assembly to the
power steering gear assembly.
SST 09023-12701
Torque: 22.5 N*m (229 kgf*cm, 17 ft.*lbf)
HINT:
• Use a torque wrench with a fulcrum length of 300
mm (11.81 in.).
• This torque value is effective when SST is
parallel to the torque wrench.
(d) Install the tube clamp with the bolt.
Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf)
(e) Install the tube clamp with the nut.
Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf)
D029970
D029977E01
D029974
D029975

POWER STEERING – RACK AND PINION POWER STEERING GEARPS–41
PS
3. INSTALL FRONT STABILIZER BRACKET NO.1 LH
(a) Install the stabilizer bracket No. 1 with the 2 bolts.
Torque: 17 N*m (173 kgf*cm, 12 ft.*lbf)
4. INSTALL FRONT STABILIZER BRACKET NO.1 RH
HINT:
Perform the same procedure on the other side.
5. INSTALL FRONT STABILIZER LINK ASSEMBLY LH
6. INSTALL FRONT STABILIZER LINK ASSEMBLY RH
HINT:
Perform the same procedure on the other side.
7. INSTALL STEERING INTERMEDIATE SHAFT
ASSEMBLY
(a) Align matchmarks on the intermediate shaft
assembly and power steering gear assembly.
(b) Install the bolt.
Torque: 36 N*m (367 kgf*cm, 27 ft.*lbf)
(c) Install the dust cover.
HINT:
Ensure that the springs are installed tightly.
8. INSTALL TIE ROD ASSEMBLY LH
9. INSTALL TIE ROD ASSEMBLY RH
HINT:
Perform the same procedure on the other side.
10. INSTALL FRONT WHEEL
Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
11. INSPECT CENTER FRONT WHEEL
12. INSPECT STEERING WHEEL CENTER POINT
13. ADD POWER STEERING FLUID
14. BLEED POWER STEERING FLUID
HINT:
(See page PS-6)
15. INSPECT FOR POWER STEERING FLUID LEAK
D030615E04
D029986E04
D030704E04

PS–42POWER STEERING – RACK AND PINION POWER STEERING GEAR
PS
16. INSPECT AND ADJUST FRONT WHEEL ALIGNMENT
HINT:
(See page SP-4)

AC–184AIR CONDITIONING – AIR CONDITIONING UNIT
AC
(b) Remove the 4 nuts and the No. 5 instrument panel
bracket.
20. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-
ASSEMBLY
(a) Release the 4 clamps and remove the bolt.
(b) Disconnect the connector.
(c) Remove the 3 bolts, the 2 nuts and the No. 1
instrument panel brace sub-assembly.
21. REMOVE NO. 2 INSTRUMENT PANEL BRACE SUB-
ASSEMBLY
(a) Release the 2 clamps and disconnect the
connector.
(b) Remove the 3 bolts, the 2 nuts and the No. 2
instrument panel brace sub-assembly.
22. SEPARATE STEERING INTERMEDIATE SHAFT
ASSEMBLY (See page SR-7)
23. REMOVE STEERING COLUMN ASSEMBLY (See page
SR-7)
24. REMOVE STEREO COMPONENT AMPLIFIER
ASSEMBLY (w/ Stereo Component Amplifier) (See
page AV- 1 7 3)
I034863
E145275E01
I034866
E145276E01
I034868