2007 TOYOTA SIENNA Steering

DS–6DRIVE SHAFT – FRONT DRIVE SHAFT
DS
7. SEPARATE TIE ROD END SUB-ASSEMBLY LH
(a) Remove the cotter pin and nut.
(b) Using SST, separate the tie rod end from the
steering knuckle.
SST 09628-62011
8. SEPARATE NO. 1 FRONT SUSPENSION ARM SUB-
ASSEMBLY LOWER LH
(a) Remove the bolt and 2 nuts, and separate the No. 1
front suspension arm sub-assembly lower from the
lower ball joint.
9. SEPARATE FRONT AXLE ASSEMBLY LH
(a) Using a plastic hammer, separate the drive shaft
from the axle hub.
NOTICE:
Be careful not to damage the boot and speed
sensor rotor.
10. REMOVE FRONT DRIVE SHAFT ASSEMBLY LH
(a) Using SST, remove the front drive shaft assembly
LH.
SST 09520-01010, 09520-24010 (09520-32040)
NOTICE:
• Be careful not to damage the transaxle case
oil seal, inboard joint boot and drive shaft
dust cover.
• Be careful not to drop the drive shaft
assembly.
11. REMOVE FRONT DRIVE SHAFT ASSEMBLY RH (for
2WD)
(a) Using a screwdriver, remove the bearing brake hole
snap ring.
(b) Remove the bolt and front drive shaft assembly RH
from the drive shaft bearing bracket.
F045060E06
F040142
D027403E03
F040148E05
C080304

DRIVE SHAFT – FRONT DRIVE SHAFTDS–19
DS
5. INSTALL NO. 1 FRONT SUSPENSION ARM SUB-
ASSEMBLY LOWER LH
(a) Install the lower ball joint to the front suspension
arm sub-assembly lower with the bolt and nuts.
Torque: 127 N*m (1,300 kgf*cm, 94 ft.*lbf)
6. INSTALL TIE ROD END SUB-ASSEMBLY LH
(a) Install the tie rod end to the steering knuckle with
the nut.
Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf)
(b) Install a new cotter pin.
NOTICE:
If the holes for the cotter pin are not aligned,
tighten the nut up to 60
further.
7. INSTALL SPEED SENSOR FRONT LH
(a) Install the speed sensor to the steering knuckle with
the bolt.
Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf)
NOTICE:
Prevent foreign matter from adhering to the
speed sensor.
(b) Install the flexible hose and the speed sensor to the
shock absorber with the bolt and set the clip of
sensor on knuckle.
Torque: 19 N*m (192 kgf*cm, 14 ft.*lbf)
NOTICE:
• Be careful not to damage the speed sensor.
• Prevent foreign matter from adhering to the
speed sensor.
• Do not twist the sensor wire when installing
the speed sensor.
8. INSTALL FRONT STABILIZER LINK ASSEMBLY LH
(a) Install the stabilizer link assembly LH with the nut.
Torque: 74 N*m (755 kgf*cm, 55 ft.*lbf)
HINT:
If the ball joint turns together with nut. use a
hexagon (6 mm) wrench to hold the stud.
F040142
F040147
C083022
F040136

AH–6AXLE – FRONT AXLE HUB
AH
REMOVAL
HINT:
Replace the RH side using the same procedures as for the
LH side.
1. REMOVE FRONT WHEEL
2. REMOVE FRONT AXLE HUB LH NUT (See page DS-
5)
3. SEPARATE SPEED SENSOR FRONT LH (See page
DS-5)
4. SEPARATE FRONT DISC BRAKE CALIPER
ASSEMBLY LH
(a) Remove the 2 bolts and separate the front disc
brake caliper assembly LH from the steering
knuckle LH.
NOTICE:
Use a string or other device to keep the brake
caliper from hanging down.
5. REMOVE FRONT DISC
6. SEPARATE TIE ROD END SUB-ASSEMBLY LH (See
page DS-6)
7. SEPARATE FRONT SUSPENSION ARM SUB-
ASSEMBLY LOWER NO.1 LH (See page DS-6)
8. REMOVE FRONT AXLE ASSEMBLY LH
(a) Using a plastic hammer, separate the front drive
shaft assembly LH from the front axle hub sub-
assembly LH.
NOTICE:
Be careful not to damage the boot and ABS
speed sensor rotor.
(b) Remove the 2 bolts, nuts and steering knuckle LH
with the front axle nub sub-assembly LH.
C067088
D027403
C083023

AH–8AXLE – FRONT AXLE HUB
AH
6. REMOVE FRONT AXLE HUB LH BEARING
(a) Place the bearing inner race (outside) on the front
axle hub LH bearing.
(b) Using SST(s) and a press, press the front axle hub
LH bearing until it contacts the SST(s).
SST 09527-17011, 09950-60010 (09951-00600),
09950-70010 (09951-07100)
(c) Using a spanner to make the steering knuckle LH
horizontal, fix it to the V block, as shown in the
illustration.
NOTICE:
Be sure the steering knuckle is horizontally
positioned.
(d) Using SST(s) and a press, remove the front axle
hub LH bearing.
SST 09950-60010 (09951-00600), 09950-70010
(09951-07100)
REASSEMBLY
1. INSTALL FRONT AXLE HUB LH BEARING
(a) Using SST(s) and a press, install a new front axle
hub LH bearing to the steering knuckle LH.
SST 09950-60020 (09951-00810), 09950-70010
(09951-07100)
2. INSTALL DISC BRAKE DUST COVER FRONT LH
(a) Place the disc brake dust cover front LH and using a
torx wrench (T30), torque the 4 bolts.
Torque: 8.3 N*m (85 kgf*cm, 74 in.*lbf)
HINT:
Torx is a registered trademark of Textron Inc.
3. INSTALL FRONT AXLE HUB SUB-ASSEMBLY LH
(a) Using SST(s), and a press, install the front axle hub
sub-assembly LH.
SST 09608-32010, 09950-60020 (09951-00810),
09950-70010 (09951-07100)
F040230E05
F011547E03
F040231E07
F040157E02

AXLE – FRONT AXLE HUBAH–9
AH
4. INSTALL FRONT AXLE HUB LH HOLE SNAP RING
(a) Using snap ring pliers, install a new front axle hub
LH hole snap ring.
5. INSTALL FRONT WHEEL BEARING DUST
DEFLECTOR NO.1 LH
(a) Using SST(s) and a hammer, install the bearing dust
deflector No. 1 LH.
SST 09316-60011 (09316-00011, 09316-00031),
09608-32010
HINT:
Align the hole for the speed sensor in the bearing
dust deflector No. 1 LH with the steering knuckle.
6. INSTALL LOWER BALL JOINT ASSEMBLY FRONT
LH
(a) Install the lower ball joint assembly front LH and
tighten the nut.
Torque: 123 N*m (1,250 kgf*cm, 91 ft.*lbf)
(b) Install a new cotter pin.
NOTICE:
If the holes for the cotter pin are not aligned,
tighten the nut up to 60
further.
INSTALLATION
1. INSTALL FRONT AXLE ASSEMBLY LH
(a) Install the 2 bolts, nuts and front axle assembly LH
with the 2 bolts and nuts to the shock absorber
assembly front LH.
Torque: 230 N*m (2,350 kgf*cm, 170 ft.*lbf)
NOTICE:
• Only when reusing the bolts and nuts, apply
the small amount of engine oil to the screw
part of the nuts.
• Do not excessively push out the front axle
assembly LH.
• Be careful not to damage the outboard joint
boot.
• Be careful not to damage the speed sensor
rotor.
2. INSTALL FRONT SUSPENSION ARM SUB-
ASSEMBLY LOWER NO.1 LH (See page DS-18)
3. INSTALL TIE ROD END SUB-ASSEMBLY LH (See
page DS-18)
4. INSTALL FRONT DISC
F045465
F045054E03
C083023

AH–10AXLE – FRONT AXLE HUB
AH
5. INSTALL FRONT DISC BRAKE CALIPER ASSEMBLY
LH
(a) Install the front disc brake caliper assembly LH with
the 2 bolts to the steering knuckle LH.
Torque: 104 N*m (1,060 kgf*cm, 77 ft.*lbf)
6. INSTALL FRONT AXLE HUB LH NUT
(a) Using a socket wrench (30mm), install a new axle
hub LH nut.
Torque: 294 N*m (3,000 kgf*cm, 217 ft.*lbf)
7. SEPARATE FRONT DISC BRAKE CALIPER
ASSEMBLY LH
(a) Remove the 2 bolts and separate the front disc
brake caliper assembly LH from the steering
knuckle LH.
NOTICE:
Use a string or other device to keep the brake
caliper from hanging down.
8. REMOVE FRONT DISC
9. INSPECT BEARING BACKLASH (See page AH-5)
10. INSPECT AXLE HUB DEVIATION (See page AH-5)
11. INSTALL FRONT DISC
12. INSTALL FRONT DISC BRAKE CALIPER ASSEMBLY
LH
(a) Install the front disc brake caliper assembly LH with
the 2 bolts to the steering knuckle LH.
Torque: 104 N*m (1,060 kgf*cm, 77 ft.*lbf)
13. INSTALL SPEED SENSOR FRONT LH (See page DS-
18)
14. INSTALL FRONT AXLE HUB LH NUT
(a) Using a socket wrench (30 mm), install a new axle
hub LH nut.
Torque: 294 N*m (3,000 kgf*cm, 217 ft.*lbf)
(b) Using a chisel and hammer, stake the axle hub LH
nut.
15. INSTALL FRONT WHEEL
Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
16. INSPECT FRONT WHEEL ALIGNMENT
(a) Inspect front wheel alignment (See page SP-4).
17. CHECK ABS SPEED SENSOR SIGNAL
(a) ABS WITH EBD SYSTEM (See page BC-3).
(b) ABS WITH EBD & BA & TRAC & VSC SYSTEM
(See page BC-72).
C067088
C067088
C068609

SUSPENSION – FRONT WHEEL ALIGNMENTSP–5
SP
3. INSPECT TOE-IN
(a) Inspect the toe-in.
To e - i n
FF
4WD
HINT:
If the toe-in is not within the specified value, adjust it
at the rack ends.
4. ADJUST TOE-IN
(a) Remove the rack boot set clips.
(b) Loosen the tie rod end lock nuts.
(c) Turn the right and left rack ends by an equal amount
to adjust the toe-in.
HINT:
Adjust the toe-in to the center of the specified value
as much as possible.
(d) Make sure that the lengths of the right and left rack
ends are the same.
(e) Tighten the tie rod end lock nuts.
Torque: 74 N*m (755 kgf*cm, 55 ft.*lbf)
(f) Place the boots on the seats and install the clips.
HINT:
Make sure that the boots are not twisted.
5. INSPECT WHEEL ANGLE
(a) Turn the steering wheel fully and measure the
turning angle.
Wheel turning angle:
FF
4WD
HINT:
If the right and left inside wheel angles are not as
specified, check the right and left rack end lengths.
SA03213E12
To e - i n
(total)-
A + B:
C - D:-1.2' +/- 12' (-0.02
+/- 0.2)
-0.2 +/- 2 mm (-0.01 +/- 0.08 in.)
To e - i n
(total)-
A + B:
C - D:2.4' +/- 12' (0.04
+/- 0.2)
0.4 +/- 2 mm (0.02 +/- 0.08 in.)
F040165
SA00028E10
Inside wheel Outside wheel
42
45' +/- 2(42.75 +/- 2)3621' (36.35)
Inside wheel Outside wheel
42
42' +/- 2
(42.70 +/- 2)3616' (36.27)

SP–6SUSPENSION – FRONT WHEEL ALIGNMENT
SP
6. INSPECT CAMBER, CASTER AND STEERING AXIS
INCLINATION
(a) Install the camber-caster-kingpin gauge or position
the vehicle on the wheel alignment tester.
(b) Inspect the camber, caster and steering axis
inclination.
FF
4WD
HINT:
If the caster and steering axis inclination are not
within the specified values, after the camber has
been correctly adjusted, recheck the suspension
parts for damaged and worn out parts.
7. ADJUST CAMBER
NOTICE:
After the camber has been adjusted, inspect the toe-
in.
(a) Remove the front wheel.
(b) Remove the 2 nuts on the lower side of the shock
absorber. (Procedure "B")
NOTICE:
When removing the nut, hold the bolt not to
rotate.
(c) Clean the installation surfaces of the shock
absorber and the steering knuckle.
(d) Temporarily install the 2 nuts.
Z003382E13
Camber
Right-left errorCaster
Right-left errorSteering axis
inclination
Right-left error
-0
17' +/- 45'
(-0.28
+/- 0.75)
30' (0.5
) or less3
09' +/- 45'
(3.15
+/- 0.75)
30' (0.5
) or less10
25' +/- 45'
(10.42
+/- 0.75)
30' (0.5
) or less
Camber
Right-left errorCaster
Right-left errorSteering axis
inclination
Right-left error
-0
17' +/- 45'
(-0.28
+/- 0.75)
30' (0.5) or less3
00' +/- 45'
(3.00
+/- 0.75)
30' (0.5) or less10
12' +/- 45'
(10.20
+/- 0.75)
30' (0.5) or less
F013683