2007 TOYOTA SIENNA Service Repair Manual

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TOYOTA SIENNA 2007  Service Repair Manual AX–204U151F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE UNIT
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10. INSPECT PACK CLEARANCE OF UNDERDRIVE 
BRAKE
(a) Using a dial indicator, measure the underdrive brake 
pack clearance while apply

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TOYOTA SIENNA 2007  Service Repair Manual AX–246U151F AUTOMATIC TRANSAXLE  –  FORWARD CLUTCH
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(d) Remove the forward clutch return spring from the 
input shaft.
4. REMOVE FORWARD CLUTCH RETURN SPRING 
SUB-ASSEMBLY
(a) Place the forward

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TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  FORWARD CLUTCHAX–247
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2. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC
(a) Check if the sliding surface of the disc, plate and 
flange are worn or burnt.
If necessary,

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TOYOTA SIENNA 2007  Service Repair Manual AX–236U151F AUTOMATIC TRANSAXLE  –  OIL PUMP
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TRANSMISSION
U151F AUTOMATIC TRANSAXLE
OIL PUMP
COMPONENTS
C114866E01

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TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  OIL PUMPAX–237
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DISASSEMBLY
1. INSPECT OIL PUMP ASSEMBLY
HINT:
(See page AX-238)
2. REMOVE CLUTCH DRUM OIL SEAL RING
(a) Remove the 2 clutch drum oil seal rings.
3.

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TOYOTA SIENNA 2007  Service Repair Manual AX–238U151F AUTOMATIC TRANSAXLE  –  OIL PUMP
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7. REMOVE FRONT OIL PUMP BODY O-RING
(a) Using a screwdriver, remove the O-ring.
HINT:
Tape the screwdriver before use.
8. REMOVE FRONT OIL PUMP OIL

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TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  OIL PUMPAX–239
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(d) Using a straightedge and feeler gauge, measure the 
side clearance of both gears.
Standard side clearance:
0.02 to 0.05 mm (0.0008 to 0.0020 in.

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TOYOTA SIENNA 2007  Service Repair Manual AX–240U151F AUTOMATIC TRANSAXLE  –  OIL PUMP
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2. INSTALL FRONT OIL PUMP BODY O-RING
(a) Coat new O-ring with ATF, and install it to the oil 
pump body.
NOTICE:
Make sure that the O-ring is not t