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ps


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POWER STEERING SYSTEM


G STEERING

                                                                                                                                                                  A




                                                                       POWER STEERING SYSTEM
                                                                                                     SECTION                    PS                                B



                                                                                                                                                                  C


                                                                                                                                                                  D


                                                                                                                                                                  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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