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G STEERING

POWER STEERING SYSTEM
SECTION PS B

E
CONTENTS
PRECAUTIONS ......................................................... 2. CHECKING STEERING GEAR .......................... 13 . F
Precautions for Supplemental Restraint System CHECKING STEERING LINKAGE .................... 13 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- CHECKING GEAR HOUSING MOVEMENT ...... 13 .
SIONER" ................................................................. 2
. Removal and Installation ....................................... 13
. PS
Precautions for Steering System ............................. 2 . REMOVAL .......................................................... 14
.
PREPARATION .......................................................... 3
. Disassembly and Assembly ................................... 16 .
Special Service Tools .............................................. 3. DISASSEMBLY .................................................. 17
.
H
Commercial Service Tool ........................................ 4 . INSPECTION AFTER DISASSEMBLY ............... 17 .
NOISE, VIBRATION, AND HARSHNESS (NVH) ASSEMBLY ........................................................ 17
.
TROUBLESHOOTING ............................................... 5 . Adjustment for Rack Sliding Force ........................ 18 .
NVH Troubleshooting Chart .................................... 5 . DECREASE ........................................................ 18
. I
POWER STEERING FLUID ....................................... 6 . INCREASE ......................................................... 19
.
Checking Fluid Level ............................................... 6. POWER STEERING OIL PUMP .............................. 20 .
Checking Fluid Leakage .......................................... 6 . On-Vehicle Service ................................................ 20
. J
Bleeding Hydraulic System ..................................... 6 . CHECKING HYDRAULIC SYSTEM ................... 20 .
STEERING WHEEL ................................................... 7 . Removal and Installation ....................................... 20
.
On-Vehicle service .................................................. 7
. REMOVAL .......................................................... 20
.
K
CHECKING STEERING WHEEL PLAY ............... 7 . INSTALLATION .................................................. 20
.
CHECKING NEUTRAL POSITION ON STEER- Disassembly and Assembly ................................... 21 .
ING WHEEL ......................................................... 7
. PRE-DISASSEMBLY INSPECTION ................... 21 .
CHECKING STEERING WHEEL TURNING DISASSEMBLY .................................................. 22
. L
FORCE ................................................................. 7
. ASSEMBLY ........................................................ 22
.
FRONT WHEEL TURNING ANGLE ..................... 8 . Inspection After Disassembly ................................ 24 .
Removal and Installation ......................................... 8 . HYDRAULIC LINE ................................................... 25
. M
REMOVAL ............................................................ 8
. Removal and Installation ....................................... 25
.
INSTALLATION .................................................... 8 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 27 .
STEERING COLUMN .............................................. 10 . General Specifications ........................................... 27
.
Removal and installation ....................................... 10 . Steering Wheel ...................................................... 27
.
Disassembly and Assembly ...................................11 . Steering Column .................................................... 27
.
Inspection .............................................................. 12
. Steering Gear and Linkage .................................... 27 .
POWER STEERING GEAR AND LINKAGE ........... 13 . Power Steering ...................................................... 28
.
On-Vehicle Service ................................................ 13.

PS-1
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EGS000AP

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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
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 harness connec-
tors.
Precautions for Steering System EGS000AQ

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
becoming 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 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. 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 installa-
tion. Perform functional tests whenever designated.

PS-2
PREPARATION

PREPARATION PFP:00002
A
Special Service Tools EGS000AR

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
KV48100700 Measuring pinion rotating torque
(J26364) C
Torque adapter

NT169

KV48102500 Measuring oil pressure E
(J33914)
Pressure gauge adapter

S-NT542
PS
ST27180001 Removing steering wheel
(J25726-A)
Steering wheel puller
H

S-NT544 I
HT72520000 Removing ball joint
(J25730-B) a: 33 mm (1.30 in)
Ball joint remover b: 50 mm (1.97 in) J
r: R11.5 mm (0.453 in)

K
S-NT546

KV48103500 Measuring oil pressure
(J26357 and J26357-10) L
Pressure gauge

S-NT547

KV48104400 Reforming teflon ring
( -- ) a: 50 mm (1.97 in) dia.
Rack seal ring reformer b: 36 mm (1.42 in) dia.
c: 100 mm (3.94 in)

S-NT550

PS-3
PREPARATION

Tool number
(Kent-Moore No.) Description
Tool name
ST3127S000 Measuring turning torque
1 GG91030000
(See J25765-A)
Torque wrench
2 HT62940000
( -- )
Socket adapter
3 HT62900000
( -- ) S-NT541

Socket adapter
(J-44372) Measuring steering wheel turning force
Spring gauge

LST024

(J-44183-A) Measuring rack sliding force
Spring gauge

LST025

Commercial Service Tool EGS000AS

Tool number
Description
Oil pump attachment Disassembling and assembling oil pump
Unit: mm (in)

S-NT774

PS-4
Symptom

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