2007 TOYOTA SIENNA Service Repair Manual

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TOYOTA SIENNA 2007  Service Repair Manual AX–158U151E AUTOMATIC TRANSAXLE  –  DIFFERENTIAL OIL SEAL
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TRANSMISSION
U151E AUTOMATIC TRANSAXLE
DIFFERENTIAL OIL SEAL
COMPONENTS
C126455E01

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TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  DIFFERENTIAL OIL SEALAX–159
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REMOVAL
1. REMOVE FRONT WHEELS
2. REMOVE ENGINE UNDER COVER NO.1
3. DRAIN AUTOMATIC TRANSAXLE FLUID
(a) Remove the drain plug, gasket a

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TOYOTA SIENNA 2007  Service Repair Manual AX–160U151E AUTOMATIC TRANSAXLE  –  DIFFERENTIAL OIL SEAL
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2. INSTALL DIFFERENTIAL SIDE BEARING RETAINER 
OIL SEAL
(a) Using SST and a hammer, install a new oil seal.
SST 09223-15020, 09950-7001

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TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE UNITAX–177
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DISASSEMBLY
1. REMOVE PARK/NEUTRAL POSITION SWITCH 
ASSEMBLY
(a) Remove the nut, washer and control shaft lever.
(b) Using a screwdr

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TOYOTA SIENNA 2007  Service Repair Manual AX–178U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE UNIT
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5. REMOVE SPEED SENSOR
(a) Remove the 2 bolts and the 2 speed sensors from 
the transaxle assembly.
6. REMOVE TRANSAXLE CASE NO.1 PL

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TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE UNITAX–179
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9. INSPECT TRANSMISSION OIL CLEANER MAGNET
(a) Remove the magnets and use them to collect any 
steel chips. Examine the chips and pa

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TOYOTA SIENNA 2007  Service Repair Manual AX–180U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE UNIT
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13. REMOVE TRANSMISSION VALVE BODY ASSEMBLY
(a) Support the valve body assembly and remove the 
17 bolts and valve body assembly.
14

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TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE UNITAX–181
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18. REMOVE C-3 ACCUMULATOR PISTON
(a) Remove the spring from the C-3 accumulator 
piston.
(b) Apply compressed air (392 kPa, 4.0 kgf