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POWER STEERING SYSTEM

G STEERING

POWER STEERING SYSTEM
SECTION PS B

E
CONTENTS
PRECAUTIONS ......................................................... 2 . ASSEMBLY ........................................................ 11. F
Precautions for Supplemental Restraint System Disassembly and Assembly ................................... 11 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DISASSEMBLY .................................................. 11 .
SIONER" ................................................................. 2
. INSPECTION AFTER DISASSEMBLY ............... 12 . PS
Precautions for Battery Service ............................... 2 . ASSEMBLY ........................................................ 12.
Precautions for Steering System ............................. 2 . INSPECTION AFTER INSTALLATION ............... 12 .
PREPARATION .......................................................... 3 . POWER STEERING GEAR AND LINKAGE ........... 13 .
H
Special Service Tools .............................................. 3 . Removal and Installation ....................................... 13 .
Commercial Service Tools ....................................... 4 . REMOVAL .......................................................... 13
.
NOISE, VIBRATION AND HARSHNESS (NVH) INSTALLATION .................................................. 14 .
TROUBLESHOOTING ............................................... 5 . POWER STEERING GEAR ..................................... 15 . I
NVH Troubleshooting Chart .................................... 5 . Component ............................................................ 15
.
POWER STEERING FLUID ....................................... 6 . Disassembly and Assembly ................................... 16 .
Checking Fluid Level ............................................... 6 . DISASSEMBLY .................................................. 16 . J
Checking Fluid Leakage .......................................... 6 . INSPECTION ..................................................... 17 .
Air Bleeding from Hydraulic System ........................ 6 . ASSEMBLY ........................................................ 18.
STEERING WHEEL ................................................... 7 . POWER STEERING OIL PUMP .............................. 24 .
K
On-Vehicle Service .................................................. 7 . On-Vehicle Service ................................................ 24.
CHECKING STEERING WHEEL PLAY ............... 7 . CHECKING RELIEF OIL PRESSURE ............... 24 .
CHECKING NEUTRAL POSITION ON STEER- CHECKING AND ADJUSTING DRIVE BELTS
ING WHEEL ......................................................... 7 . (FOR POWER STEERING) ............................... 24 . L
CHECKING STEERING WHEEL TURNING Removal and Installation ....................................... 24 .
FORCE ................................................................. 7
. REMOVAL .......................................................... 24
.
FRONT WHEEL TURNING ANGLE .................... 7 . INSTALLATION .................................................. 25 . M
Removal and Installation ......................................... 8 . Disassembly and Assembly ................................... 25 .
STEERING COLUMN ................................................ 9 . PRE-DISASSEMBLY INSPECTION ................... 25 .
Removal and Installation ......................................... 9 . DISASSEMBLY .................................................. 25 .
REMOVAL OF LOWER JOINT AND HOLE INSPECTION AFTER DISASSEMBLY ............... 26 .
COVER ................................................................ 9
. ASSEMBLY ........................................................ 26.
INSTALLATION OF LOWER JOINT AND HOLE HYDRAULIC LINE ................................................... 28 .
COVER .............................................................. 10
. Removal and Installation ....................................... 28 .
REMOVAL OF STEERING COLUMN ASSEM- SERVICE DATA AND SPECIFICATIONS (SDS) ..... 29 .
BLY ..................................................................... 10
. Steering Wheel ...................................................... 29
.
INSTALLATION OF STEERING COLUMN Steering Angle ....................................................... 29
.
Steering Column .................................................... 29
.
Steering Linkage .................................................... 29
.
Steering Gear ........................................................ 30
.
Oil Pump ................................................................ 30
.
Steering Fluid ......................................................... 30
.

Revision; 2004 April PS-1 2003 G35 Coupe
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AGS000DZ

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Battery Service AGS000EP

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Precautions for Steering System AGS000E0

q Before disassembly, thoroughly clean the outside of the unit.
q Disassembly should be done in a clean work area. It is important to prevent the internal parts from becom-
ing contaminated by dirt or other foreign matter.
q Place disassembled parts in order, on a parts rack, for easier and proper assembly.
q Use nylon cloths or paper towels to clean the parts; common shop rags can leave lint that might interfere
with their operation.
q Before inspection or reassembly, carefully clean all parts with a general purpose, non-flammable solvent.
q Before assembly, apply a coat of recommended Genuine Nissan PSF II or equivalent to hydraulic parts.
Vaseline may be applied to O-rings and seals. Do not use any grease.
q Replace all gaskets, seals and O-rings. Avoid damaging O-rings, seals and gaskets during installation.
Perform functional tests whenever designated.

Revision; 2004 April PS-2 2003 G35 Coupe
PREPARATION

PREPARATION PFP:00002
A
Special Service Tools AGS000E1

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
B
(Kent - Moore No.) Description
Tool name

ST3127S000 C
(J25765 - A)
Preload gauge
1.GG9103000
D
(J25765 - A)
Torque wrench Inspecting swinging torque and rotating
2.HT62940000 torque for ball joint
(

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