suspension TOYOTA SIENNA 2007 Service Owner's Manual

AH–4AXLE – FRONT AXLE HUB
AH
SUSPENSION & AXLE
AXLE
FRONT AXLE HUB
COMPONENTS
C118779E01

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

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

AXLE – REAR AXLE HUB AND BEARING (for 2WD)AH–15
AH
SUSPENSION & AXLE
AXLE
REAR AXLE HUB AND BEARING (for 2WD)
COMPONENTS
C119308E04

AH–18AXLE – REAR AXLE HUB AND BEARING (for 4WD)
AH
SUSPENSION & AXLE
AXLE
REAR AXLE HUB AND BEARING (for 4WD)
COMPONENTS
C119309E04

SUSPENSION – FRONT SHOCK ABSORBER WITH COIL SPRINGSP–13
SP
REMOVAL
1. REMOVE FRONT WHEEL
2. REMOVE FRONT WIPER ARM HEAD CAP
HINT:
(See page WW-3)
3. REMOVE FR WIPER ARM RH
HINT:
(See page WW-3)
4. REMOVE FR WIPER ARM LH
HINT:
(See page WW-3)
5. REMOVE COWL TOP VENTILATOR LOUVER SUB-
ASSEMBLY
HINT:
(See page WW-3)
6. REMOVE WINDSHIELD WIPER MOTOR & LINK
ASSEMBLY
HINT:
(See page WW-3)
7. REMOVE COWL TOP PANEL SUB-ASSEMBLY
OUTER FRONT
HINT:
When removing or installing the front shock absorber
with coil spring RH, it is necessary to remove the cowl
top panel sub-assembly outer front.
(a) Disconnect the wire harness from the cowl top panel
sub-assembly outer front.
(b) Remove the 9 bolts, cowl top brace and cowl top
panel sub-assembly outer front.
8. REMOVE FRONT STABILIZER LINK ASSEMBLY LH
(a) Remove the nut and disconnect the front stabilizer
link assembly LH from the shock absorber assembly
front LH.
HINT:
If the ball joint turns together with the nut, use a
hexagon (6 mm) wrench to hold the stud.
F049306E01
F045196

SP–14SUSPENSION – FRONT SHOCK ABSORBER WITH COIL SPRING
SP
9. REMOVE FRONT SHOCK ABSORBER WITH COIL
SPRING
(a) Loosen the lock nut.
NOTICE:
• Do not loosen the nut except for the purpose
of disassembling the shock absorber
assembly front LH with coil spring.
• Do not remove the lock nut.
(b) Remove the bolt, and disconnect the front flexible
hose No.1 and speed sensor front LH.
(c) Remove the 2 nuts and 2 bolts on the lower side of
the front shock absorber with coil spring.
NOTICE:
When removing the bolt, hold the nut not to
rotate.
(d) Remove the 3 nuts on the upper side of the front
shock absorber with coil spring.
(e) Remove the front shock absorber with the coil
spring.
F044629
C065925
F013683
F044630

SUSPENSION – FRONT SHOCK ABSORBER WITH COIL SPRINGSP–15
SP
DISASSEMBLY
1. FIX FRONT SHOCK ABSORBER WITH COIL SPRING
(a) Install 2 nuts and a bolt to the bracket at the lower
side of the front shock absorber with coil spring and
secure it in a vise.
2. REMOVE FRONT SUSPENSION SUPPORT SUB-
ASSEMBLY LH
(a) Using SST, compress the front coil spring LH.
SST 09727-30021 (09727-00010, 09727-00021,
09727-00031)
NOTICE:
Do not use an impact wrench. It will damage the
SST.
HINT:
Use 2 SST of the same type.
(b) Remove the lock nut and the front suspension
support sub-assembly.
3. REMOVE FRONT SUSPENSION SUPPORT LH
BEARING
4. REMOVE FRONT COIL SPRING SEAT UPPER LH
5. REMOVE FRONT COIL SPRING INSULATOR UPPER
LH
6. REMOVE FRONT COIL SPRING LH
7. REMOVE FRONT SPRING BUMPER LH
8. REMOVE FRONT COIL SPRING INSULATOR LOWER
LH
9. REMOVE SHOCK ABSORBER ASSEMBLY FRONT
LH
INSPECTION
1. INSPECT SHOCK ABSORBER ASSEMBLY FRONT
LH
(a) Compress and extend the shock absorber rod and
check that there is no unusual resistance or unusual
sound during operation.
If there is any abnormality, replace the shock
absorber assembly front LH with a new one.
NOTICE:
When disposing of the shock absorber
assembly front LH, see DISPOSAL (See page
SP-18).
F003956E02
W003646

SP–16SUSPENSION – FRONT SHOCK ABSORBER WITH COIL SPRING
SP
REASSEMBLY
1. INSTALL SHOCK ABSORBER ASSEMBLY FRONT LH
2. INSTALL FRONT COIL SPRING INSULATOR LOWER
LH
(a) Install the front coil spring insulator lower LH onto
the shock absorber assembly front LH.
3. INSTALL FRONT SPRING BUMPER LH
(a) Install the front spring bumper LH to the piston rod.
4. INSTALL FRONT COIL SPRING LH
(a) Using SST, compress the front coil spring LH.
SST 09727-30021 (09727-00010, 09727-00021,
09727-00031)
NOTICE:
Do not use an impact wrench. It will damage the
SST.
HINT:
Use 2 SST of the same type.
(b) Install the front coil spring LH to the shock absorber
assembly front LH.
HINT:
Fit the front coil spring insulator lower LH into the
gap of the shock absorber assembly front LH.
5. INSTALL FRONT COIL SPRING INSULATOR UPPER
LH
(a) Install the front coil spring insulator upper LH as
shown in the illustration.
6. INSTALL FRONT COIL SPRING SEAT UPPER LH
(a) Install the front coil spring seat upper LH to the
shock absorber assembly front LH with the mark
facing to the outside of the vehicle.
F040160E01
F040168E01
F040161E02

SUSPENSION – FRONT SHOCK ABSORBER WITH COIL SPRINGSP–17
SP
7. INSTALL FRONT SUSPENSION SUPPORT LH
BEARING
(a) Install the front suspension support LH bearing.
8. INSTALL FRONT SUSPENSION SUPPORT SUB-
ASSEMBLY LH
(a) Install the front suspension support sub-assembly
LH with the mark facing to the outside of the vehicle.
(b) Temporarily tighten a new lock nut.
F040162
F040169E01