2007 TOYOTA SIENNA Service Repair Manual

Page 2713 of 3000

TOYOTA SIENNA 2007  Service Repair Manual POWER STEERING  –  POWER STEERING SYSTEMPS–3
PS
(b) With the engine stopped, check the fluid level in the 
fluid reservoir.
If necessary, add fluid.
Fluid:
ATF DEXRON II or III, or equivalent
HINT

Page 2714 of 3000

TOYOTA SIENNA 2007  Service Repair Manual PS–4POWER STEERING  –  POWER STEERING SYSTEM
PS
(b) Connect SST as shown in the illustration.
SST 09640-10010 (09641-01010, 09641-01060, 
09641-01030)
NOTICE:
Check that the valve of SST is in the

Page 2715 of 3000

TOYOTA SIENNA 2007  Service Repair Manual POWER STEERING  –  POWER STEERING SYSTEMPS–5
PS
(g) With the engine idling, open the valve fully.
(h) Measure the fluid pressure at engine speeds of 
1,000 rpm and 3,000 rpm.
Fluid pressure differ

Page 2716 of 3000

TOYOTA SIENNA 2007  Service Repair Manual PS–6POWER STEERING  –  POWER STEERING SYSTEM
PS
(g) Turn the steering wheel 90 degrees to the right and 
check steering effort (torque) while turning the 
wheel. Check the opposite direction in th

Page 2717 of 3000

TOYOTA SIENNA 2007  Service Repair Manual PS–6POWER STEERING  –  POWER STEERING FLUID
PS
POWER STEERING FLUID
BLEEDING
1. BLEED POWER STEERING SYSTEM
(a) Check the fluid level (See page PS-2).
(b) Jack up the front of the vehicle and supp

Page 2718 of 3000

TOYOTA SIENNA 2007  Service Repair Manual POWER STEERING  –  VANE PUMPPS–7
PS
STEERING
POWER STEERING
VANE PUMP
COMPONENTS
C161545E01

Page 2719 of 3000

TOYOTA SIENNA 2007  Service Repair Manual PS–8POWER STEERING  –  VANE PUMP
PS
C159003E01

Page 2720 of 3000

TOYOTA SIENNA 2007  Service Repair Manual POWER STEERING  –  VANE PUMPPS–9
PS
REMOVAL
1. DRAIN POWER STEERING FLUID
2. REMOVE FRONT WHEEL RH
3. REMOVE FRONT FENDER APRON SEAL RH (See 
page EM-26)
4. REMOVE FAN AND GENERATOR V BELT (See pa