wheel alignment LEXUS ES300 2005 Owner's Manual

B53747
38 mm (1.5 in.)
- REAR SUSPENSIONREAR SUSPENSION ARM ASSY NO.2 LH
27-15
2397 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(b) Set the suspension arm in the position in the illustration
and fully tighten the bolt.
Torque: 100 NVm (1,020 kgfVcm, 74 ftVlbf)
13. INSTALL REAR SUSPENSION MEMBER SUB-ASSY (See page 27-10)
14. TEMPORARILY TIGHTEN REAR SUSPENSION ARM ASSY NO.1 LH (See page 27-10)
15. TEMPORARILY TIGHTEN REAR SUSPENSION ARM ASSY NO.1 RH
HINT:
Temporarily tighten the RH side by the procedures with the LH side.
16. TEMPORARILY TIGHTEN REAR SUSPENSION ARM ASSY NO.2 LH (See page 27-10)
17. TEMPORARILY TIGHTEN REAR SUSPENSION ARM ASSY NO.2 RH
HINT:
Temporarily tighten the RH side by the procedures with the LH side.
18. TEMPORARILY TIGHTEN STRUT ROD ASSY REAR (See page 27-18)
19. CONNECT HEIGHT CONTROL SENSOR SUB-ASSY REAR RH (See page 65-33)
20. STABILIZE SUSPENSION (See page 27-10)
21. FULLY TIGHTEN REAR SUSPENSION ARM ASSY NO.1 LH (See page 27-10)
22. FULLY TIGHTEN REAR SUSPENSION ARM ASSY NO.1 RH
HINT:
Fully tighten the RH side by the procedures with the LH side.
23. FULLY TIGHTEN REAR SUSPENSION ARM ASSY NO.2 LH (See page 27-10)
24. FULLY TIGHTEN REAR SUSPENSION ARM ASSY NO.2 RH
HINT:
Fully tighten the RH side by the procedures with the LH side.
25. FULLY TIGHTEN STRUT ROD ASSY REAR (See page 27-18)
26. INSTALL STABILIZER BAR REAR (See page 27-16)
27. INSTALL EXHAUST PIPE ASSY CENTER (See page 15-2)
28. INSTALL REAR WHEEL
Torque: 103 NVm (1,050 kgfVcm, 76 ftVlbf)
29. INSPECT REAR WHEEL ALIGNMENT (See page 27-3)
30. HEADLIGHT AIM ONLY (See page 65-15)

C93541
A
B
B53738
C91816
- REAR SUSPENSIONSTABILIZER BAR REAR
27-17
2399 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
6. INSTALL STABILIZER BAR REAR
(a) Install the bushing and bracket with the 2 bolts (LH side).
Torque: 19 NVm (195 kgfVcm, 14 ftVlbf)
HINT:

2 types of bolts (A, B) are used, so make sure the correct
bolts are installed.

Install the bushing to the inner side of the bushing stopper
on the stabilizer bar.
7. INSTALL REAR STABILIZER LINK ASSY LH
(a) Remove the 2 nuts and stabilizer bar link.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
HINT:
If the ball joint turns together with the nut, use a hexagon (5 mm)
wrench to hold the stud.
8. INSTALL REAR STABILIZER LINK ASSY RH
HINT:
Install the RH side by the same procedures with the LH side.
9. INSTALL REAR WHEEL
Torque: 103 NVm (1,050 kgfVcm, 76 ftVlbf)
10. INSPECT REAR WHEEL ALIGNMENT (See page 27-3)

B53740
B53741
B53739
- REAR SUSPENSIONSTRUT ROD ASSY REAR
27-19
2401 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(b) Connect the strut rod (inner side) with the bolt.
Torque: 113 NVm (1,150 kgfVcm, 83 ftVlbf)
HINT:
While fixing the nut, turn the bolt.
4. STABILIZE SUSPENSION (See page 27-10)
5. FULLY TIGHTEN STRUT ROD ASSY REAR
(a) Fully tighten the bolt.
Torque: 113 NVm (1,152 kgfVcm, 83 ftVlbf)
HINT:
While fixing the nut, turn the bolt.
(b) Install the parking brake cable with the bolt and nut.
Torque: 5.4 NVm (55 kgfVcm, 48 in.Vlbf)
6. INSTALL REAR WHEEL
Torque: 103 NVm (1,050 kgfVcm, 76 ftVlbf)
7. INSPECT REAR WHEEL ALIGNMENT (See page 27-3)

5002K-07
50-2
- STEERING COLUMNSTEERING
2563 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
PROBLEM SYMPTOMS TABLE
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. Power steering vane pump
9. Power steering gear28-1
51-3
51-3
51-3
26-5
-
26-16
-
51-9
51-21
Poor return
1. Tires (Improperly inflated)
2. Front wheel alignment (Incorrect)
3. Steering column (Binding)
4. Power steering gear28-1
26-5
-
51-21
Excessive play
1. Steering system joints (Worn)
2. Suspension arm ball joints (Worn)
3. Intermediate shaft, Sliding yoke (Worn)
4. Front wheel bearing (Worn)
5. Power steering gear-
26-16
-
30-19
51-21
Abnormal noise
1. Power steering fluid level (Low)
2. Steering system joints (Worn)
3. Power steering vane pump
4. Power steering gear51-3
-
51-9
51-21

Lexus Supports ASE CertificationPage 1 of 11
Title:
REPAIR MANUAL SUPPLEMENT:
VEHICLE PULLING TO ONE SIDE
Models:
All '02 ± '06 Model
Technical Service
Information Bulletin
December 21, 2001
ST004-01
TSIB REVISION NOTICE:
October 5, 2005: 2003 ± 2006 model years have been added to Applicable Vehicles.
A note has been added to the illustration in step 3.
March 1, 2002: OP Codes updated in Warranty Information.
All previous versions of this TSIB should be discarded.
This bulletin contains general vehicle pulling diagnosis and repair procedures along with
specific information to help correct pulling complaints.
This information supplements Repair Manual procedures when the symptoms are:
The driver holds the steering wheel without exerting steering effort while driving
straight ahead, and the vehicle drifts to the right or the left.
While driving straight ahead, the driver has to steer either to the right or the left to
maintain straight driving.
2002 ± 2006 model year Lexus vehicles.
OP CODEDESCRIPTIONTIMEOPNT1T2
ST1004Preliminary Check & Road Test0.6
Combo ASwitch Front Tire/Wheel & Road Test0.5
Combo BReverse the Front One Side Tire0.745046 09020Combo CCheck Front Wheel Alignment1.245046±09020
Combo DAdjust Front Wheel Alignment0.73199
Combo EAdjust Camber Setting0.7
420091Dismount and Mount Tire and Balance Wheel
and Tire Assembly0.542611±48030
Combo AEach additional Wheel0.3
42611 48030
NOTE:
Above combination codes A, B, D and E include road test time.
Applicable Warranty*:
This repair is covered under the Lexus Comprehensive Warranty. This warranty is in
effect for 12 months or 20,000 miles, whichever occurs first, from the vehicle's
in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.
STEERING
Introduction
Applicable
Vehicles
Warranty
Information

REPAIR MANUAL SUPPLEMENT: VEHICLE PULLING TO ONE SIDE ± ST004-01 RevisedDecember 21, 2001
Page 2 of 11
This bulletin is divided into the following sections:
Wheel Alignment and Tire Characteristics Pages 2±3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Procedure Flow Chart Page 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Procedures
1. Important Notice Page 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Troubleshooting Pages 5±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Vehicle Pulling Caused by Wheel Alignment Pages 6±7. . . . . . . . . . . . . . . . . . .
4. Vehicle Pulling Caused by Tire Conicity Pages 7±9. . . . . . . . . . . . . . . . . . . . . . .
5. Camber Adjustment Method Pages 9±10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents

REPAIR MANUAL SUPPLEMENT: VEHICLE PULLING TO ONE SIDE ± ST004-01 RevisedDecember 21, 2001
Page 3 of 11
1. Relationship Between Wheel Alignment and Vehicle Pulling to One Side
When the cross camber or caster of the front wheel alignment is large, it can cause
vehicle pulling.
WHEEL ALIGNMENTDIRECTION OF VEHICLE PULLING
CamberVehicle pulls in direction of wheel with large camber value
CasterVehicle pulls in direction of wheel with small caster value
CAMBER
Straight±Ahead
DrivingDirection of Pull
CASTER
Front
Caster Trail
(Small)Caster Trail
(Large) TPT' P'
F' F aa'
O
P, P': Driving Force
a, a': Steering Axes
O, O': Center of Tire±Road
Contact Area
F, F': Reactive Force
O'
If the cross camber or caster is within the specified range (30' or less), noticeable vehicle
pulling will not occur due to side-to-side differences in camber or caster.
NOTE:
On a flat road, if the cross camber or caster is 30' or less and the steering wheel is
held without exerting steering effort for 100 m (109 yards) when driving at 100 km/h
(62 mph), the alignment±induced drift distance is approximately 0.5 m (1.64 ft). Wheel
Alignment &
Tire
Characteristics

REPAIR MANUAL SUPPLEMENT: VEHICLE PULLING TO ONE SIDE ± ST004-01 RevisedDecember 21, 2001
Page 4 of 11
2. Relationship Between Tire Characteristics and Vehicle Pulling to One Side
When radial tires are rotating, they have the characteristic of generating force in the
lateral direction between the tire and the road surface. This lateral force is comprised
of two factors:
Ply±steer, which changes direction according to the rotation direction of the tires.
Conicity, which is generated in a fixed direction regardless of the tire rotation
direction.
If these lateral forces are too strong, vehicle pulling will occur.
A. Ply±Steer
Lateral force due to ply-steer is produced by the construction of the belts inside
the tire tread. With radial tires, the wire of the belt is slanted as shown in the
illustration below. Thus, it is in the lateral direction that tire tread easily changes
shape (stretches), and lateral force is generated between the tire and the road
surface in the lateral direction.
Easily±Stretched
Direction
Wire
BeltRotation Direction
Ply±Steer
(Direction of Force Generation Varies
According to Tire Rotation)
NOTE:
Lateral force from ply-steer prevents vehicle drift caused by road slant, so in many
cases lateral force to the right is provided for left-handed steering vehicles.
B. Conicity
Conicity is lateral force resulting from uneven formation of the left and right sides
of the tire. The direction the lateral force is exerted depends on the hardness of
the side walls and the difference in height between the left/right sides of the tire.
Conicity
(Direction Is Fixed Regardless of
Direction of Tire Rotation) Hard
Part
NOTE:
In the case of vehicle pulling caused by tires, the lateral force which is exerted as a
result of conicity has the greatest effect. On a flat road, if the steering wheel is held
without exerting steering effort for 100 m (109 yards) when travelling at 100 km/h (62
mph), the vehicle may drift as much as 1.5 m (5 ft).
When vehicle pulling is due to conicity, the amount of drift can be reduced and the
direction of drift can be changed by changing the location of the tire or reversing
the tire when installing it on the wheel. Wheel
Alignment &
Tire
Characteristics
(Continued)

REPAIR MANUAL SUPPLEMENT: VEHICLE PULLING TO ONE SIDE ± ST004-01 RevisedDecember 21, 2001
Page 5 of 11
* Select a flat road where the vehicle can be driven in a straight line for 100 meters at a constant speed of
35 mph. Please confirm safety and set the steering wheel to its straight position. Drive the vehicle in a
straight line for 100 meters at a constant speed of 35 mph without exerting steering effort on the steering
wheel.
(1) The vehicle goes straight but the steering wheel has some angle. STEERING OFF CENTER
(2) The vehicle doesn't go straight. STEERING PULLYES
START
Preliminary Check
Tire Pressure
Vehicle height
Brake Dragging*ROAD TEST
Does the vehicle lead/pull?Is there steering
off center?COMPLETE
Adjust front tie rods.
See TSIB ST002±01
Are the tires uni±directional type?
Cross switch front tire and wheel
assemblies (left & right)ROAD TEST
Does the vehicle still lead/pull?
Does the vehicle lead/pull in the
same direction as before?
Is the lead/pull stronger
than before?
Reverse the front left side
tire and rebalance it.
ROAD TEST
Does the vehicle still lead/pull?
Increase left front camber and decrease right
front camber until lead/pull is eliminated.
Does the vehicle
lead/pull to the left?
ROAD TEST
Does the vehicle still lead/pull?
Increase right front camber and decrease left
front camber until lead/pull is eliminated.
Contact your regional office.
COMPLETE
Choose the position of front tire & wheel
assemblies where there is least amount of pull.
Check front wheel alignment.
Is it within specification?
ROAD TEST
Does the vehicle still lead/pull?
Adjust front wheel alignment.
NOTE: Do not exceed 1
of
cross camber.
Do not exceed adjustment range.
NO YES YES
YES
YES
YESNO
NO YES
NO NO YESNO YESYES YES
NONO NO
NO NO
Repair
Procedure
Flow Chart

REPAIR MANUAL SUPPLEMENT: VEHICLE PULLING TO ONE SIDE ± ST004-01 RevisedDecember 21, 2001
Page 6 of 11
1. IMPORTANT NOTICE
Before repairing vehicle pulling to one side, it is necessary to clearly identify the
cause of the pulling condition. Frequently, the cause of the vehicle pulling to one side
is diagnosed as wheel alignment. However, the actual cause may be lateral force
generated by the tires. Performing wheel alignment when tire force is the cause could
result in the wheel alignment being set at a value outside of specifications. This would
then cause other problems such as uneven tire wear, etc.
2. Troubleshooting
First determine whether vehicle pulling to one side is caused by a wheel alignment
problem or tire characteristics, then decide which repairs to make.
A. Perform the following checks and correct as necessary.
a. Check tires for size, wear and for proper inflation pressure.
b. Check whether the vehicle is noticeably tilted backward/forward or left/right.
NOTE:
Tilting of the vehicle produces a left±right difference in the camber and caster and can
cause vehicle pulling to one side.
c. Check brakes for dragging.
B. Confirm problem symptoms.
With the customer accompanying you, drive the vehicle to confirm if the
customer 's complaint involves vehicle pulling to one side or steering wheel off
center. If the problem is steering wheel off center, adjust the front tie rods on the
vehicle. Refer to Lexus TSIB ST002±01. Also check the direction of vehicle
pulling and the extent of the pulling.
C. Decide if vehicle pulling is due to wheel alignment or tires.
a. Switch the left and right front tires (If the tires are non±unidirectional).
b. Conduct a drive test to check whether the direction that the vehicle pulls has
changed.
SYMPTOMPROBABLE CAUSECORRECTIVE ACTION
No change in vehicle
pulling conditionFront wheel alignmentProceed to Repair Procedure 3. Vehicle pulling
caused by Wheel Alignment (Page 6)
Vehicle pulling
eliminatedTire conicityRepair complete. Vehicle Pulling Caused by Tire
Conicity (Page 3 and 6)
Vehicle pulling
direction is reversedTire conicityProceed to Repair Procedure 4. Vehicle Pulling
Caused by Tire Conicity (Page 7)
Repair
Procedures