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POWER STEERING SYSTEM

G STEERING

POWER STEERING SYSTEM
SECTION PS B

E
CONTENTS
PRECAUTIONS ......................................................... 2
. INSPECTION AFTER INSTALLATION ............... 13 . F
Precautions for Supplemental Restraint System Disassembly and Assembly ................................... 13 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DISASSEMBLY .................................................. 13 .
SIONER" ................................................................. 2
. ASSEMBLY ........................................................ 14. PS
Precautions for Steering System ............................. 2 . POWER STEERING GEAR AND LINKAGE ........... 15 .
PREPARATION .......................................................... 3
. Removal and Installation ....................................... 15 .
Special Service Tools (SST) .................................... 3 . REMOVAL .......................................................... 15
.
H
NOISE, VIBRATION AND HARSHNESS (NVH) INSTALLATION .................................................. 15 .
TROUBLESHOOTING ............................................... 5 . INSPECTION AFTER INSTALLATION ............... 16 .
NVH Troubleshooting Chart .................................... 5 . Component ............................................................ 17
.
POWER STEERING FLUID ....................................... 6 . Disassembly and Assembly ................................... 18 . I
Checking Fluid Level ............................................... 6
. DISASSEMBLY .................................................. 18 .
Checking Fluid Leakage .......................................... 6 . INSPECTION AFTER DISASSEMBLY ............... 19 .
Air Bleeding Hydraulic System ................................ 6 . ASSEMBLY ........................................................ 21. J
STEERING WHEEL ................................................... 7 . POWER STEERING OIL PUMP .............................. 26 .
On-Vehicle Inspection and Service ......................... 7 . On-Vehicle Inspection and Service ........................ 26 .
CHECKING CONDITION OF INSTALLATION ..... 7 CHECKING RELIEF OIL PRESSURE ............... 26 .
K
CHECKING STEERING WHEEL PLAY ............... 7 . Removal and Installation ....................................... 26 .
CHECKING NEUTRAL POSITION ON STEER- REMOVAL .......................................................... 26
.
ING WHEEL ......................................................... 7
. INSTALLATION .................................................. 26 .
CHECKING STEERING WHEEL TURNING Disassembly and Assembly ................................... 27 . L
FORCE ................................................................. 7
. INSPECTION BEFORE DISASSEMBLY ............ 27 .
CHECKING FRONT WHEEL TURNING ANGLE 8 ..... DISASSEMBLY .................................................. 27 .
Removal and Installation ......................................... 9. INSPECTION AFTER DISASSEMBLY ............... 28 . M
REMOVAL ............................................................ 9
. ASSEMBLY ........................................................ 29.
INSTALLATION .................................................... 9
. HYDRAULIC LINE ................................................... 31 .
STEERING COLUMN ...............................................11 . Components .......................................................... 31
.
Removal and Installation ........................................11 . Removal and Installation ....................................... 32 .
REMOVAL OF LOWER SHAFT AND HALL SERVICE DATA AND SPECIFICATIONS (SDS) ..... 33 .
COVER ...............................................................11
. Steering Wheel ...................................................... 33
.
INSTALLATION OF LOWER JOINT AND HALL Steering Angle ....................................................... 33
.
COVER .............................................................. 12
. Steering Column .................................................... 33
.
REMOVAL OF STEERING COLUMN ................ 12 . Steering Outer Socket and Inner Socket ............... 33 .
INSPECTION AFTER REMOVAL ...................... 12 . Steering Gear ........................................................ 34
.
INSTALLATION OF STEERING COLUMN ........ 12 . Oil Pump ................................................................ 34
.
Steering Fluid ......................................................... 34
.

PS-1
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EGS000FJ

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 Steering System EGS00087

q Before disassembly, thoroughly clean the outside of 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 For easier and proper assembly, place disassembled parts in order on a parts rack.
q Use nylon cloth 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 or equivalent to hydraulic parts.
Petroleum jelly 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.

PS-2
PREPARATION

PREPARATION PFP:00002
A
Special Service Tools (SST) EGS0006V

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
C

ST27180001
(J25726 -A) Removing of steering wheel D
Steering wheel puller

S-NT544
E

HT72520000
(J25730-A)
Ball joint remover F
Removing steering outer socket
a: 33 mm (1.30 in)
b: 50 mm (1.97 in)
c: 11.5 mm (0.453 in)
PS
NT546

ST3127S000
(See J25765 - A)
Preload gauge H
1.GG9103000.
(J25765 - A)
Torque wrench Inspection of sliding torque, steering
2.HT62940000 torque, and rotating torque for ball joint
I
(

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