Toyota Sienna Service Manual: Disassembly
1. INSPECT PACK CLEARANCE OF FORWARD CLUTCH
HINT: (See page AX-242)
2. REMOVE FORWARD MULTIPLE DISC CLUTCH DISC
(a) Using a screwdriver, remove the snap ring.
(b) Remove the flange, 5 discs and 5 plates from the input shaft assembly.
3. REMOVE FORWARD CLUTCH RETURN SPRING SUB-ASSEMBLY
(a) Place SST on the spring retainer and compress the return spring with a press.
(b) Using a snap ring expander, remove the snap ring.
NOTICE:
- Stop the press when the spring seat is lowered 1 to 2 mm (0.039 to 0.078 in.) from the snap ring groove, preventing the spring seat from being deformed.
- Do not expand the snap ring excessively.
(c) Remove the clutch balancer from the input shaft.
(d) Remove the forward clutch return spring from the input shaft.
4. REMOVE FORWARD CLUTCH RETURN SPRING SUB-ASSEMBLY
(a) Place the forward clutch drum onto the oil pump.
(b) Holding the forward clutch piston by hand, apply compressed air (392 kPa, 4.0 kgf/cm2, 57 psi) to the oil pump to remove the forward clutch piston.
HINT:
When the piston cannot be removed as it is slanted, blow air again with the protruding side pushed, or remove the piston using the needle nose pliers with vinyl tape on the tip.
5. REMOVE INPUT SHAFT OIL SEAL RING
(a) Remove the input shaft oil seal ring from the input shaft.
Forward clutch
Components
...
Inspection
1. INSPECT PACK CLEARANCE OF FORWARD CLUTCH
(a) Install the forward clutch on the oil pump.
NOTICE:
Be careful not to damage the oil seal ring of oil
pump.
b) Using a dial indicator, measure ...
Other materials:
Maintenance data
(fuel, oil level, etc.)
Dimensions and weights
*1: Unladen vehicle
*2: The model code is indicated on the Certification Label. For details, see
“Vehicle identification” below.
*3: The towing package is required.
Toyota does not recommend towing with this vehicle without the towing
package.
Vehicle identifi ...
Distance Control ECU Power Source Circuit
DESCRIPTION
This circuit provides power to operate the distance control ECU. The distance
control ECU determines
information about the vehicle in front based on data from the laser sensor, and
then decides how much
acceleration and/or deceleration is needed to maintain the set distance. The
...
Inspection
1. INSPECT PURGE VSV
(a) Measure the resistance of the purge VSV.
Standard resistance
If the result is not as specified, replace the purge
VSV.
(b) Check the operation of the purge VSV.
(1) Check that air does not flow from port E to port
F.
(2) Apply battery voltage across t ...
