2001 TOYOTA AVALON Service Repair Manual

SR0EE-03
R11741
Normal Abnormal SR-4
- STEERINGPOWER STEERING FLUID
1467 Author
: Date
:
2001 AVALON (RM808U)
POWER STEERING FLUID
BLEEDING
1. CHECK FLUID LEVEL (See page SR-5)
2. JACK UP FRONT OF VEHICLE AND SUPPORT IT
WITH STANDS
3. TURN STEERING WHEEL
With the engine stopped, turn the steering wheel slowly from
lock to lock several times.
4. LOWER VEHICLE
5. START ENGINE
Run the engine at idle for a few minutes.
6. TURN STEERING WHEEL
(a) With the engine idling, turn the steering wheel to left or
right full lock position and keep it there for 2-3 seconds,
then turn the steering wheel to the opposite full lock posi-
tion and keep it there for 2-3 seconds.
(b) Repeat (a) several times.
7. STOP ENGINE
8. CHECK FOR FOAMING OR EMULSIFICATION
If the system has to be bled twice specifically because of foam-
ing or emulsification, check for fluid leaks in the system.
9. CHECK FLUID LEVEL (See page SR-5)

R11740
HOT
COLD
SR0EF-04
R11741
Normal Abnormal
R11786Engine Idling
Engine Stopped 5 mm (0.20 in.)
or less
- STEERINGPOWER STEERING FLUID
SR-5
1468 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. CHECK FLUID LEVEL
(a) Keep the vehicle level.
(b) With the engine stopped, check the fluid level in the oil
reservoir.
If necessary, add fluid.
Fluid: ATF DEXRON® II or III
HINT:
Check that the fluid level is within the HOT LEVEL range on the
reservoir. If the fluid is cold, check that it is within the COLD
LEVEL range.
(c) Start the engine and run it at idle.
(d) Turn the steering wheel from lock to lock several times to
boost fluid temperature.
Fluid temperature: 80°C (176°F)
(e) Check for foaming or emulsification.
If there is foaming or emulsification, bleed power steering sys-
tem (See page SR-4).
(f) With the engine idling, measure the fluid level in the oil
reservoir.
(g) Stop the engine.
(h) Wait a few minutes and remeasure the fluid level in the oil
reservoir.
Maximum fluid level rise: 5 mm (0.20 in.)
If a problem is found, bleed power steering system (See page
SR-4).
(i) Check the fluid level.

R14662
Attachment
IN
OUT Pressure Feed Tube SST
Z15498
Oil
Reservoir
PS Vane
Pump PS Gear
SST Closed SR-6
- STEERINGPOWER STEERING FLUID
1469 Author
: Date
:
2001 AVALON (RM808U)
2. CHECK STEERING FLUID PRESSURE
(a) Disconnect the pressure feed tube (See page SR-27).
(b) Connect SST to pressure feed tubes, as shown in the il-
lustration below.
SST 09640- 10010 (09641- 01010, 09641- 01030,
09641-01060)
NOTICE:
Check that the valve of the SST is in the open position.
(c) Bleed the power steering system (See page SR-4).
(d) Start the engine and run it at idle.
(e) Turn the steering wheel from lock to lock several times to
boost fluid temperature.
Fluid temperature: 80 °C (176 °F)
(f) With the engine idling, close the valve of the SST and ob-
serve the reading on the SST.
Minimum fluid pressure:
7,845 kPa (80 kgf/cm
2, 1,138 psi)
NOTICE:

Do not keep the valve closed for more than 10 se-
conds.

Do not let the fluid temperature become too high.

Z15499
Oil
Reservoir
PS Vane
Pump PS Gear
SST Open
Z15500
Oil
Reservoir
PS Vane
Pump PS Gear
SST Open Lock Position
- STEERINGPOWER STEERING FLUID
SR-7
1470 Author
: Date
:
2001 AVALON (RM808U)
(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.
Difference fluid pressure:
490 kPa (5 kgf/cm
2, 71 psi) or less
NOTICE:
Do not turn the steering wheel.
(i) With the engine idling and valve fully opened, turn the
steering wheel to full lock.
Minimum fluid pressure:
7,845 kPa (80 kgf/cm
2, 1,138 psi)
NOTICE:

Do not maintain lock position for more than 10 se-
conds.

Do not let the fluid temperature become too high.
(j) Disconnect the SST.
SST 09640- 10010 (09641- 01010, 09641- 01030,
09641-01060)
(k) Connect the pressure feed tube (See page SR-35).
(l) Bleed the power steering system (See page SR-4).

SR0ET-05
F09931
Stabilizer Bar
Clamp PlateNo. 1 Fuel Tube Protector
Intermediate Shaft
Sub-assembly
Return Tube
Pressure Feed Tube
PS Gear Assembly
* For use with SSTCotter Pin  Non-reusable part
19 (190, 14)
19 (190, 14)
10 (100, 7)
35 (360, 26)
181 (1,850, 134)
181 (1,850, 134)
49 (500, 36)
49 (500, 36)N´m (kgf´cm, ft´lbf) : Specified torque
25 (250, 18)
*28 (290, 21)
Cotter Pin25 (250, 18)
*28 (290, 21)
O-Ring 
Power steering fluid

- STEERINGPOWER STEERING GEAR
SR-37
1500 Author
: Date
:
2001 AVALON (RM808U)
POWER STEERING GEAR
COMPONENTS

Z19562
 O-Ring
* For use with SST  Non-reusable partRack Housing
No. 2 Grommet
Rack HousingRack Boot
Clip
Tie Rod End
Lock Nut
Rack End
Steering Rack Rack Housing
No. 2 Bracket Clamp
 Claw Washer
 Teflon Ring
 Oil Seal
 Wire
 Oil Seal
Molybdenum disulfide lithium base grease
Power steering fluidCylinder End Stopper
Bushing  Claw Washer Rack End
83 (850, 61)
*60 (610, 44)
 Clamp Rack Boot Clip
Lock Nut Tie Rod End
74 (750, 54)
74 (750, 54)
N´m (kgf´cm, ft´lbf) : Specified torque
 O-Ring
83 (850, 61)
*60 (610, 44)
SR-38
- STEERINGPOWER STEERING GEAR
1501 Author
: Date
:
2001 AVALON (RM808U)

F09751
 Non-reusable part Oil Seal  O-Ring
Molybdenum disulfide lithium base grease
Power steering fluid
Precoated part O-Ring Turn Pressure Tube
Dust Seal

Control Valve AssemblyControl Valve
Housing Turn Pressure Tube

 Oil Seal
 Bearing
 Teflon Ring
 Bearing
 Gasket
Rack Guide Spring
Rack Guide Sub-assembly
Rack Housing
 Bearing
Rack Guide
Spring Cap Lock Nut

Rack Guide
Spring Cap
 Self-locking Nut

Rack Housing Cap
13 (130, 9)
*12 (120, 9)
18 (180, 13)
18 (180, 13)
69 (700, 51)
*50 (510, 37)
25 (250, 18)
59 (600, 43)
N´m (kgf´cm, ft´lbf): Specified torque
* For use with SST
- STEERINGPOWER STEERING GEAR
SR-39
1502 Author
: Date
:
2001 AVALON (RM808U)

SR0EV-05
W04228
SST
F13587
SST
R00429
Matchmarks
W04230
R11644
Claw Washer
- STEERINGPOWER STEERING GEAR
SR-41
1504 Author
: Date
:
2001 AVALON (RM808U)
DISASSEMBLY
NOTICE:
When using a vise, do not overtighten it.
1. SECURE PS GEAR ASSEMBLY IN VISE
Using SST, secure the PS gear assembly in a vise.
SST 09612-00012
2. REMOVE 2 TURN PRESSURE TUBES
(a) Using SST, remove the 2 turn pressure tubes.
SST 09023-38200
(b) Remove the 4 O-rings from the 2 turn pressure tubes.
3. REMOVE RH AND LH TIE ROD ENDS AND LOCK
NUTS
(a) Place matchmarks on the tie rod end and rack end.
(b) Loosen the lock nut, and remove the tie rod end and lock
nut.
(c) Employ the same manner described above to the other
side.
4. REMOVE RH AND LH CLIPS, RACK BOOTS AND
CLAMPS
(a) Using a screwdriver, loosen the clamp.
NOTICE:
Be careful not to damage the rack boot.
(b) Remove the clip and rack boot.
(c) Employ the same manner described above to the other
side.
HINT:
Mark the RH and LH rack boot.
5. REMOVE RH AND LH RACK ENDS AND CLAW WASH-
ERS
(a) Using a screwdriver and hammer, unstake the claw wash-
er.
NOTICE:
Avoid any impact on the steering rack.