2007 TOYOTA SIENNA Service Repair Manual

Page 1977 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  DIRECT CLUTCHAX–255
AX
7. INSPECT PACK CLEARANCE OF DIRECT CLUTCH 
AND OVERDRIVE CLUTCH
(a) Using a dial indicator, measure the direct clutch & 
overdrive clutch pack

Page 1978 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–256U151F AUTOMATIC TRANSAXLE  –  DIRECT CLUTCH
AX
3. INSTALL OVERDRIVE DIRECT CLUTCH PISTON
(a) Coat the overdrive direct clutch piston with ATF, and 
install it to the direct clutch drum.
4. I

Page 1979 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  DIRECT CLUTCHAX–257
AX
(g) Set the end gap of the snap ring in the piston shown 
in the illustration.
NOTICE:
The end gap of the snap ring should not align 
with any

Page 1980 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–258U151F AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEAR
AX
TRANSMISSION
U151F AUTOMATIC TRANSAXLE
UNDERDRIVE PLANETARY GEAR
COMPONENTS
C114868E03

Page 1981 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEARAX–259
AX
DISASSEMBLY
1. INSPECT UNDERDRIVE PLANETARY GEAR 
PRELOAD
HINT:
(See page AX-260)
2. REMOVE FRONT PLANETARY GEAR NUT
(a) Using SST,

Page 1982 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–260U151F AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEAR
AX
4. REMOVE UNDERDRIVE PLANETARY GEAR 
ASSEMBLY
(a) Using SST and a press, remove the differential drive 
pinion, parking lock gear,

Page 1983 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEARAX–261
AX
(b) Using SST and a torque wrench, measure the 
turning torque of the underdrive planetary gear 
assembly while rotating the torque

Page 1984 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–262U151F AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEAR
AX
(e) Using a snap ring pliers, install the snap ring.
2. INSTALL UNDERDRIVE PLANETARY GEAR 
ASSEMBLY
(a) Using SST and a press, pres