Page 4057 of 4331

PS
N
O P
CONTENTS
POWER STEERING SYSTEM
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary fo r Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution for Steering System .......................... ......2
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool .................................... ......4
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....5
NVH Troubleshooting Chart ................................ ......5 STEERING WHEEL ...........................................
6
On-Vehicle Inspection and Service ..................... .....6
Removal and Installation ..................................... .....7
STEERING COLUMN ......................................... 9
Removal and Installation ..................................... .....9
POWER STEERING GEAR .............................. 12
Removal and Installation ..................................... ....12
Disassembly and Assembly ................................. ....13
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................. 17
Steering Wheel .................................................... ....17
Steering Angle ..................................................... ....17
Steering Column .................................................. ....17
Steering Outer Socket and Inner Socket .................17
Steering Gear ...................................................... ....18
Page 4058 of 4331
Page 4059 of 4331
PS
N
O P
- Before disassembly, thoroughly clean the outside of the unit.
- Disassembly should be done in a clean work area. It is im portant to prevent the internal parts from becoming
contaminated by dirt or other foreign matter.
- For easier and proper assembly, place disassembled parts in order on a parts rack.
- Use nylon cloth or paper towels to clean the parts; common shop rags can leave lint that might interfere with
their operation.
- Do not reuse non-reusable parts.
- Before assembling, apply the specif ied grease to the directed parts.
Page 4060 of 4331
PS-4< SERVICE INFORMATION >
PREPARATION
PREPARATION
Special Service Tool INFOID:0000000004305928
The actual shapes of K ent-Moore tools may differ from thos e of special tools illustrated here.
Commercial Service Tool INFOID:0000000004305929
Tool number
(Kent-Moore No.)
Tool name Description
ST3127S000
(J-25742-1)
Preload gauge
(J-25765-A)
1. GG91030000
Torque wrench
2. HT62940000
( — )
Socket adapter (1/2")
3. HT62900000
( — )
Socket adapter (3/8") Inspecting rotating torque for steering column
assembly and pinion assembly
KV40107300
( — )
Boot Band crimping tool Installing boot bands
KV48103400
( — )
Preload adapter Inspecting of rotating torque for pinion assem-
bly S-NT541
ZZA1229D
ZZA0824D
Tool number
Tool name Description
Spring gauge Inspecting steering wheel turning force and
power steering gear linkage
Power tool Removing nuts and bolts LST025
PBIC0190E
Page 4061 of 4331

PS
N
O P
NOISE, VIBRATION AND HARSHN
ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart INFOID:0000000004305930
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
× : ApplicableReference pagePS-13PS-13PS-6PS-6PS-6PS-9
PS-12
,
PS-13PS-9PS-9PS-13
FAX-5, "
NVH Troubleshooting Chart
"
FSU-6, "
NVH Troubleshooting Chart
"
WT-5, "
NVH Troubleshooting Chart
"
WT-5, "
NVH Troubleshooting Chart
"
FAX-5, "
NVH Troubleshooting Chart
"
BR-5, "
NVH Troubleshooting Chart
" Possible cause and SUSPECTED
PARTS
Outer/Inner socket ball joint swinging torque
Outer/Inner socket ball joint end play
Steering wheel play
Steering gear pinion rotating torque
Improper steering wheel
Improper installation or looseness of tilt lock lever
Mounting loosenesss
Steering column deformation or damage
Improper installation or looseness of steering column
Steering linkage looseness
WHEEL HUB
SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
Symptom Noise
× × × × × × × × × ×
Shake × × × × × × × × ×
Vibration × × × × × × × × ×
Shimmy × × × × × × × × ×
Shudder × × × × × × ×
Page 4062 of 4331

Removal and Instal-
lation " .
CHECKING STEERING WHEEL PLAY
• Turn steering wheel so that front wheels come to the straight-ahead position. Start engine and lightly turn
steering wheel to the left and right until front wheels start to move. Measure steering wheel movement on the
outer circumference.
• When the measurement value is outside the standard val ue, check backlash for each joint of steering col-
umn assembly and installation condition of steering gear assembly.
CHECKING NEUTRAL POSITION STEERING WHEEL
• Make sure that steering gear assembly, steering colu mn assembly and steering wheel are installed in the
correct position.
• Perform neutral position inspection after wheel alignment. Refer to PS-2, " Precaution for Supplemental
Restraint System (SRS) "AIR BA
G" and "SEAT BELT PRE-TENSIONER" " .
• Set vehicle to the straight-ahead position and c onfirm steering wheel is in the neutral position.
• Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if steer-
ing wheel is not in the neutral position.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Check steering wheel turning force when steering wheel has been turned 360 ° from neutral position using suitable tool as
shown.
4. If steering wheel turning force is out of the specification, refer to STC-6, " How to Perform Trouble Diagnosis " .
CHECKING FRONT WHEEL TURNING ANGLE Steering wheel axial end play : 0 mm (0 in)
Steering wheel play : 0 - 35 mm (0 - 1.38 in)
Steering wheel
turning force : Less than 36 N (3.7 kg-f, 8.2 lb-f)
Page 4063 of 4331

PS
N
O P
• Check front wheel turning angle after toe-in inspection. Place front
wheels on turning radius gauges and rear wheels on stands.
Check the maximum inner and outer wheel turning angles for LH
and RH road wheels.
• With the engine at idle, turn steering wheel from full left stop to full right stop and measure the turning angles.
• Measure rack stroke if angles are outside the specified value.
• Disassemble steering gear assembly to check the cause that rack stroke is outside of the standard.
• Steering angles are not adjustabl e. Check steering gear assembly,
steering column assembly and front suspension components for
wear or damage if any of the turning angles are different from the
specified value. Replace any of them, if any non-standard condi-
tion exists.
Removal and Installation INFOID:0000000004305932
REMOVAL NOTE:
When reconnecting spiral cable, secure cable with a tape so that case and rotating part keep aligned. This will
omit neutral position alignment procedure during spiral cable installation.
1. Set front wheels to straight-ahead position.
2. Remove driver air bag module. Refer to SRS-34 .
3. Remove steering wheel lock nut after steering is locked.
4. Remove steering wheel.
INSTALLATION Installation is in the reverse order of removal.
Page 4064 of 4331