LEXUS ES300 2005 Repair Manual
Manufacturer: LEXUS, Model Year: 2005, Model line: ES300, Model: LEXUS ES300 2005Pages: 969, PDF Size: 24.08 MB
Page 721 of 969
C66721
C81547F40197
Inner side
Rear
side
C91607
26-18
- FRONT SUSPENSIONSTABILIZER BAR FRONT
2381 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
12. REMOVE STABILIZER BAR FRONT
13. REMOVE FRONT STABILIZER BAR BUSH NO.1
14. INSPECT FRONT STABILIZER LINK ASSY LH
(a) As shown in the illustration, flip the ball joint stud back and
forth 5 times, before installing the nut.
(b) Using a torque wrench, turn the nut continuously at a rate
of 2 - 4 seconds per 1 turn and take the torque reading
on the 5th turn.
Turning torque:
0.05 - 1.96 N´m (0.5 - 20 kgf´cm, 0.4 - 17.4 in.´lbf)
15. INSTALL FRONT STABILIZER BAR BUSH NO.1
HINT:
Install the bushing to the inner side of the bushing stopper on
the stabilizer bar.
16. INSTALL STABILIZER BAR FRONT
17. INSTALL RACK & PINION POWER STEERING GEAR ASSY (See page 51-21)
18. INSTALL STEERING INTERMEDIATE SHAFT SUB-ASSY (See page 51-21)
19. INSTALL PRESSURE FEED TUBE ASSY (See page 51-21)
SST 09023-00101
20. INSTALL STEERING GEAR OUTLET RETURN TUBE (See page 51-21)
SST 09023-00101
21. INSTALL TIE ROD ASSY LH (See page 30-8)
22. INSTALL TIE ROD ASSY RH
HINT:
Install the RH side by the same procedures with the LH side.
23. INSTALL FRONT STABILIZER BRACKET NO.1 LH
(a) Install the 2 front stabilizer brackets No. 1 LH with the 2
bolts.
Torque: 19 NVm (194 kgfVcm, 14 ftVlbf)
Page 722 of 969
F40143
- FRONT SUSPENSIONSTABILIZER BAR FRONT
26-19
2382 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
24. INSTALL FRONT STABILIZER BRACKET NO.1 RH
HINT:
Install the RH side by the same procedures with the LH side.
25. INSTALL FRONT STABILIZER LINK ASSY LH
(a) Install the front stabilizer link assy LH with the 2 nuts.
Torque: 74 NVm (755 kgfVcm, 55 ftVlbf)
HINT:
If the ball joint turns together with the nut, use a hexagon (6 mm)
wrench to hold the stud.
26. INSTALL FRONT STABILIZER LINK ASSY RH
HINT:
Install the RH side by the same procedures with the LH side.
27. INSTALL FRONT WHEEL
Torque: 103 NVm (1,050 kgfVcm, 76 ftVlbf)
28. BLEED POWER STEERING FLUID (See page 51-3)
29. CHECK POWER STEERING FLUID LEAKAGE
30. INSPECT AND ADJUST FRONT WHEEL ALIGNMENT (See page 26-5)
Page 723 of 969
51067-03
F41916
TYPE A VANE PUMP
TYPE B VANE PUMP Pulley
Pulley
- POWER STEERINGPOWER STEERING SYSTEM
51-1
2576 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
POWER STEERING SYSTEM
PRECAUTION
1. HANDLING PRECAUTIONS ON STEERING SYSTEM
(a) Care must be taken to when replacing parts. Incorrect re-
placement could affect the performance of the steering
system and result in a driving hazard.
(b) 1MZ-FE engine has 2 types of vane pump assy.
HINT:
TYPE A VANE PUMP
Vane pump pulley can be removed from the vane pump shaft
(See page 51-7).
TYPE B VANE PUMP
Vane pump pulley cannot be removed from the vane pump
shaft (See page 51-7).
2. HANDLING PRECAUTIONS ON SRS AIRBAG SYSTEM
(a) The LEXUS ES330 is equipped with SRS (Supplemental Restraint System) such as the driver airbag
and front passenger airbag. Failure to carry out service operation in correct sequence could cause the
SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing
(including removal or installation of parts, inspection or replacement), be sure to read the precaution-
ary notice for the supplemental restraint system (See page 60-1).
Page 724 of 969
51017-12
51-2
- POWER STEERINGPOWER STEERING SYSTEM
2577 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in the order shown. If necessary, repair or replace these parts.
SymptomSuspect AreaSee page
Hard steering
1. Tires (Improperly inflated)
2. Power steering fluid level (Low)
3. Drive belt (Loose)
4. Front wheel alignment (Incorrect)
5. Steering system joints (Worn)
6. Suspension arm ball joints (Worn)
7. Steering column (Binding)
8. Vane pump assy
9. Rack & pinion power steering gear assy28-1
51-3
14-1
26-5
-
26-16
-
51-9
51-21
Poor return
1. Tires (Improperly inflated)
2. Front wheel alignment (Incorrect)
3. Steering column (Binding)
4. Rack & pinion power steering gear assy28-1
26-5
-
51-21
Excessive play
1. Steering system joints (Worn)
2. Suspension arm ball joints (Worn)
3. Steering intermediate shaft sub-assy (Worn)
4. Sliding yoke (Worn)
5. Front wheel bearing (Worn)
6. Rack & pinion power steering gear assy-
26-16
-
-
30-2
51-21
Abnormal noise
1. Power steering fluid level (Low)
2. Steering system joints (Worn)
3. Vane pump assy
4. Rack & pinion power steering gear assy51-3
-
51-9
51-21
Page 725 of 969
51018-15
F40449
F40897
Normal
Abnormal
F40898
- POWER STEERINGPOWER STEERING SYSTEM
51-3
2578 Author: Date:
ON-VEHICLE INSPECTION
1. INSPECT DRIVE BELT
(a) Visually check the belt for excessive wear, frayed cords,
etc.
If any defect is found, replace the drive belt.
HINT:
Cracks on the rib side of a belt are considered acceptable. If the
missing chunks from the ribs are found on the belt, it should be
replaced.
2. BLEED POWER STEERING SYSTEM
(a) Check the fluid level.
(b) Jack up the front of the vehicle and support it with the
stands.
(c) Turn the steering wheel.
(1) With the engine stopped, turn the wheel slowly from
lock to lock several times.
(d) Lower the vehicle.
(e) Start the engine.
(1) Run the engine at idle for a few minutes.
(f) Turn the steering wheel.
(1) With the engine idling, turn the wheel to left or right
full lock position and keep it there for 2 - 3 seconds,
then turn the wheel to the opposite full lock position
and keep it there for 2 - 3 seconds.
(2) Repeat (1) several times.
(g) Stop the engine.
(h) Check for forming or emulsification.
Especially, if the system has to be bled twice because of foam-
ing or emulsification, check for fluid leaks in the system.
(i) Check the fluid level.
3. 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 cap. If the fluid is cold, check that it is within the COLD
LEVEL range.
Page 726 of 969
F40897
NormalAbnormal
R11786Engine Idling Engine Stopped5 mm (0.20 in.)
or less 51-4
- POWER STEERINGPOWER STEERING SYSTEM
2579 Author: Date:
(c) Start the engine and run it at idle.
(d) Turn the steering wheel from lock to lock several times to
raise fluid temperature.
Fluid temperature: 75 - 80°C (167 - 176°F)
(e) Check for foaming or emulsification.
If foaming or emulsification is identified, bleed the power steer-
ing system.
(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 the power steering system.
(i) Check the fluid level.
4. CHECK STEERING FLUID PRESSURE
(a) Disconnect the pressure feed tube assy from the rack &
pinion power steering gear assy (See page 51-21).
(b) Connect SST, as shown in the illustration.
SST 09640-10010 (09641-01010, 09641-01020,
09641-01030)
NOTICE:
Check that the valve of the SST is in the open position.
(c) Bleed the power steering system.
(d) Start the engine and run it at idle.
(e) Turn the steering wheel from lock to lock several times to
raise fluid temperature.
Fluid temperature: 75 - 80 °C (167 - 176 °F)
Page 727 of 969
F41520
SST
OUT Attachment
Pressure Feed
Tube AssyAttachment
IN
Z15498
Oil
Reservoir
PS Vane
Pump PS Gear
SST Closed
Z15499
Oil
Reservoir
PS Vane
Pump PS Gear
SST Open
Z15500
Oil
Reservoir
PS Vane
Pump PS Gear
SST Open Lock Position
- POWER STEERINGPOWER STEERING SYSTEM
51-5
2580 Author: Date:
(f) With the engine idling, close the valve of the SST and ob-
serve the reading on the SST.
Fluid pressure:
7,800 - 8,300 kPa (80 - 85 kgf/cm
2, 1,138 - 1,209 psi)
NOTICE:
Do not keep the valve closed for more than 10 se-
conds.
Do not let the fluid temperature become too high.
(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 difference:
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 position.
Fluid pressure:
7,800 - 8,300 kPa (80 - 85 kgf/cm
2, 1,138 - 1,209 psi)
NOTICE:
Do not maintain lock position for more than 10 se-
conds.
Do not let the fluid temperature become too high.
Page 728 of 969
F41590
51-6
- POWER STEERINGPOWER STEERING SYSTEM
2581 Author: Date:
(j) Disconnect the SST.
SST 09640- 10010 (09641- 01010, 09641- 01020,
09641-01030)
(k) Connect the pressure feed tube assy to the rack & pinion
power steering gear assy (See page 51-21).
(l) Bleed the power steering system.
5. CHECK STEERING EFFORT
(a) Center the steering wheel assy.
(b) Remove the horn button assy (See page 60-22).
(c) Start the engine and run it at idle.
(d) Using a torque wrench, measure the steering effort in
both directions.
Steering effort (Reference):
6 N´m (60 kgf´cm, 53 in.´lbf) or less
HINT:
Take the tire type, pressure and contact surface into consider-
ation before making your diagnosis.
(e) Install the steering wheel assy set nut.
Torque: 50 N´m (510 kgf´cm, 37 ft´lbf)
(f) Install the horn button assy (See page 60-22).
(g) Inspect SRS warning light (See page 05-818).
Page 729 of 969
51068-01
F41597
TYPE A VANE PUMP:
Pressure Port Union
Flow Control Valve
O-Ring
Flow Control Valve
Compression Spring
Power Steering
Suction Port Union
43 (438, 32)
Pump Bracket
Front
Vane Pump
Housing Front
O-Ring Gasket
O-Ring
24 (245, 18)24 (245, 18)
Vane Pump
Bracket Rear Vane Pump
Housing Rear
44 (449, 32)
Vane Pump Pulley
Vane Pump Shaft
Vane Pump Shaft Snap Ring
Vane Pump Housing Oil Seal
Vane Pump Plate
Vane Pump Rotor
Vane Pump Cam Ring
Vane Pump
Side Plate RearWave Washer
Non-reusable part
NVm (kgfVcm, ftVlbf) : Specified torque
Power steering fluid
X10
83 (846, 61)
13 (133, 10)
43 (438, 32)
- POWER STEERINGVANE PUMP ASSY
51-7
2582 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
VANE PUMP ASSY
COMPONENTS
Page 730 of 969
F41589
TYPE B VANE PUMP:
Pressure Port Union
O-Ring
Flow Control Valve
Flow Control Valve
Compression Spring
Gasket
Power Steering
Suction Port Union
O-Ring
Pump Bracket
Front
Vane Pump
Housing Front
O-Ring
24 (245, 18)
24 (245, 18)
Vane Pump
Housing Rear
Wave Washer
Vane Pump
Side Plate Rear
Vane Pump Cam Ring
Vane Pump Plate
Vane Pump Shaft Snap Ring W/Pulley Shaft
Sub-assy Vane Pump Housing
Oil Seal
Non-reusable part
NVm (kgfVcm, ftVlbf) : Specified torque
Power steering fluid
Vane Pump
Bracket Rear
X10
Vane Pump Rotor
83 (846, 61)
13 (133, 10)
44 (449, 32)
44 (449, 32)
51-8
- POWER STEERINGVANE PUMP ASSY
2583 Author: Date:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)