transmission oil TOYOTA SIENNA 2007 Service Owner's Guide

U151E AUTOMATIC TRANSAXLE – VALVE BODY ASSEMBLYAX–137
AX
6. REMOVE VALVE BODY OIL STRAINER ASSEMBLY
(a) Remove the 3 bolts and oil strainer.
NOTICE:
Be careful when removing the oil strainer as
fluid will come out.
(b) Remove the O-ring from the valve body oil strainer
assembly.
7. REMOVE TRANSMISSION VALVE BODY ASSEMBLY
(a) Support the valve body assembly and remove the
17 bolts and the transmission valve body assembly.
(b) Remove the check ball body and the spring.
(c) Remove the bolt and lock plate from the valve body
assembly.
(d) Remove the shift solenoid valve SL3 and SLT from
the valve body assembly.
C091931
C091932
C091933
C050017
C089112

U151E AUTOMATIC TRANSAXLE – VALVE BODY ASSEMBLYAX–141
AX
(c) Install the oil strainer with the 3 bolts.
Torque: 11 N*m (110 kgf*cm, 8 ft.*lbf)
3. INSTALL TRANSMISSION WIRE
(a) Coat the O-ring with ATF.
(b) Install the ATF temperature sensor with the lock
plate and bolt.
Torque: 6.6 N*m (67 kgf*cm, 58 in.*lbf)
(c) Connect the 7 shift solenoid valve connectors.
4. INSTALL AUTOMATIC TRANSAXLE OIL PAN SUB-
ASSEMBLY
(a) Install the 2 magnets in the oil pan.
(b) Apply seal packing or equivalent to the 18 bolts.
Seal packing:
THREE BOND 2430 or equivalent
(c) Install the oil pan and new gasket with the 18 bolts
to the transaxle case.
Torque: 7.8 N*m (80 kgf*cm, 69 in.*lbf)
NOTICE:
Tighten the bolts within 10 minutes of sealant
application.
5. CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL
6. ADD AUTOMATIC TRANSAXLE FLUID
7. CHECK FLUID LEVEL IN AUTOMATIC TRANSAXLE
(See page AX-123)
8. INSTALL ENGINE UNDER COVER NO.1
9. RESET MEMORY
HINT:
(See page AX-16)
C091931
C091927E04
D030865
C091925

AX–158U151E AUTOMATIC TRANSAXLE – DIFFERENTIAL OIL SEAL
AX
TRANSMISSION
U151E AUTOMATIC TRANSAXLE
DIFFERENTIAL OIL SEAL
COMPONENTS
C126455E01

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE UNITAX–179
AX
9. INSPECT TRANSMISSION OIL CLEANER MAGNET
(a) Remove the magnets and use them to collect any
steel chips. Examine the chips and particles in the
pan and on the magnet to determine what type of
wear has occurred in the transaxle:
Result:
Steel (magnetic):
Wear of the bearing, gear and plate
Brass (non-magnetic):
Wear of the bushing
10. DISCONNECT TRANSMISSION WIRE
(a) Remove the 7 connectors from the shift solenoid
valves.
(b) Remove the bolt, lock plate and temperature
sensor.
11. REMOVE TRANSMISSION WIRE
(a) Remove the bolt and transmission wire from the
transaxle case.
12. REMOVE VALVE BODY OIL STRAINER ASSEMBLY
(a) Remove the 3 bolts and oil strainer.
(b) Remove the O-ring from the oil strainer.
AT00103E03
C091927E02
D003547E05
C091931
C091932E01

AX–164U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE ASSEMBLY
AX
7. REMOVE STARTER ASSEMBLY
(a) Disconnect the connector (1).
(b) Remove the nut (2) and disconnect the starter wire.
(c) Remove the 2 bolts (3) and starter assembly.
8. DISCONNECT CONNECTORS
(a) Disconnect the transmission wire connector.
(b) Disconnect the park/neutral position switch
connector.
(c) Disconnect the 2 speed sensor connectors.
9. REMOVE TRANSMISSION CONTROL CABLE
BRACKET NO.1
(a) Remove the bolt and automatic transmission oil
cooler tube clamp.
(b) Remove the 2 bolts and transmission control cable
bracket No.1.
10. REMOVE TRANSMISSION OIL FILLER TUBE SUB-
ASSEMBLY
(a) Remove the ATF level gauge.
(b) Disconnect the wire harnesses 2 clamps from the oil
filler tube.
(c) Remove the 2 bolts and oil filler tube.
(d) Remove the O-ring from the oil filler tube.
D030464E02
D030864E04
D030467
D030468

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE ASSEMBLYAX–167
AX
(d) Install the flywheel housing under cover to the
automatic transaxle with the 2 bolt.
Torque: 7.8 N*m (80 kgf*cm, 69 in.*lbf)
3. INSTALL ENGINE MOUNTING BRACKET FRONT
(a) Install the engine mounting bracket front to the
automatic transaxle with the 3 bolts.
Torque: 64 N*m (653 kgf*cm, 47 ft.*lbf)
4. INSTALL TRANSMISSION OIL FILLER TUBE SUB-
ASSEMBLY
(a) Coat a new O-ring with ATF, and install it to the
transmission oil filler tube sub-assembly.
(b) Install the transmission oil filler tube sub-assembly
and bolt to the automatic transaxle.
Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf)
(c) Connect the 2 clamps to the oil filler tube.
(d) Install the ATF level gauge.
5. INSTALL OIL COOLER INLET TUBE NO.1
(a) Temporarily install the oil cooler outlet tube No.1.
(b) Temporarily install the oil cooler inlet tube No.1.
(c) Install the oil cooler tube clamp and bolt.
Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf)
(d) Using SST and a wrench, tighten the oil cooler inlet
tube No.1.
SST 09023-12701
Torque: 34 N*m (347 kgf*cm, 25 ft.*lbf)
6. INSTALL OIL COOLER OUTLET TUBE NO.1
(a) Using SST and a wrench, tighten the oil cooler
outlet tube No.1.
SST 09023-12701
Torque: 34 N*m (347 kgf*cm, 25 ft.*lbf)
D030471
D030470
D030700
D030699
D030469E04

AX–228U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE UNIT
AX
68. INSTALL TRANSMISSION VALVE BODY ASSEMBLY
(a) While positioning the manual valve lever position,
install the valve body to the transaxle case with the
17 bolts.
Torque: 11 N*m (110 kgf*cm, 8 ft.*lbf)
Bolt length:
Bolt A:
41 mm (1.614 in.)
Bolt B:
57 mm (2.244 in.)
Bolt C:
25 mm (0.984 in.)
NOTICE:
• Push the valve body against the accumulator
piston spring and the check ball body to
install the valve body.
• When installing the valve body to the
transaxle case, do not hold the solenoids.
• Temporarily tighten the bolts marked with (1)
in the illustration first because they are
positioning bolts.
69. INSTALL VALVE BODY OIL STRAINER ASSEMBLY
(a) Coat a new O-ring with ATF and install it to the oil
strainer.
NOTICE:
Make sure that the O-ring is not twisted or
pinched. Apply sufficient ATF to the O-ring
before installation.
(b) Install the oil strainer and 3 bolts to the valve body.
Torque: 11 N*m (110 kgf*cm, 8 ft.*lbf)
NOTICE:
Apply ATF to the bolts.
70. INSTALL AUTOMATIC TRANSAXLE OIL PAN SUB-
ASSEMBLY
(a) Install the 2 magnets to the oil pan.
(b) Apply seal packing or equivalent to new 18 bolts.
Seal packing:
THREE BOND 2430 or equivalent
C091933E02
C091932E01
C091931
C086316E03

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE UNITAX–179
AX
9. INSPECT TRANSMISSION OIL CLEANER MAGNET
(a) Remove the magnets and use them to collect any
steel chips. Examine the chips and particles in the
pan and on the magnet to determine what type of
wear has occurred in the transaxle:
Result:
Steel (magnetic):
Wear of the bearing, gear and plate
Brass (non-magnetic):
Wear of the bushing
10. DISCONNECT TRANSMISSION WIRE
(a) Remove the 7 connectors from the shift solenoid
valves.
(b) Remove the bolt, lock plate and temperature
sensor.
11. REMOVE TRANSMISSION WIRE
(a) Remove the bolt and transmission wire from the
transaxle case.
12. REMOVE VALVE BODY OIL STRAINER ASSEMBLY
(a) Remove the 3 bolts and oil strainer.
(b) Remove the O-ring from the oil strainer.
AT00103E03
C091927E02
D003547E05
C091931
C091932E01

AX–232U151E AUTOMATIC TRANSAXLE – OIL PUMP
AX
TRANSMISSION
U151E AUTOMATIC TRANSAXLE
OIL PUMP
COMPONENTS
C114866E01

AX–16U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
(9) Disconnect the connector of the transmission
wire.
HINT:
Disconnect the connector only when performing
the D position stall test.
(10)Start the engine.
(11)Firmly depress the brake pedal, shift to the D
position, depress the accelerator pedal all the
way down and check the line pressure while the
stall test is performed.
Specified line pressure:
(12)Turn the ignition switch off.
(13)Remove the SST, install the test plug A.
(14)Remove the test plug B, install the SST and
start engine.
SST 09992-00095 (09992-00231, 09992-
00271)
(15)Connect the transmission wire connector,
depress the brake pedal firmly, shift to the R
position and check that the line pressure while
the engine is idling and during the stall test.
Specified line pressure:
(16)Remove the SST, install the test plug B.
(17)Clear the DTC.
Evaluation:
C160154E01
Condition
D position kPa (kgf / cm2, psi)
Stall test931 to 1,031 kPa
(9.5 to 10.5 kgf/cm
2, 135 to 150 psi)
Condition
R position kPa (kgf / cm
2, psi)
Idling672 to 742 kPa
(6.9 to 7.6 kgf/cm
2, 97 to 108 psi)
Stall test1,768 to 1,968 kPa
(18.0 to 20.1 kgf/cm
2, 256 to 285 psi)
Problem Possible cause
Measured values are higher than specified in all positions• Shift solenoid valve SLT defective
• Regulator valve defective
Measured values are lower than specified in all positions• Shift solenoid valve SLT defective
• Regulator valve defective
• Oil pump defective
• U/D (Underdrive) direct clutch defective
Pressure is low in the D position only• D position circuit fluid leak
• Forward clutch defective
Pressure is low in the R position only• R position circuit fluid leak
• Reverse clutch defective
• 1st and reverse brake defective