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G STEERING

B
SECTION
POWER STEERING SYSTEM C

E
CONTENTS
PRECAUTIONS ......................................................... 2
. Removal and Installation ....................................... 11 . F
Precautions for Supplemental Restraint System STEERING WHEEL ........................................... 11 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- STEERING COLUMN ........................................ 12 .
SIONER" ................................................................. 2
. Disassembly and Assembly ................................... 13 . PS
Precautions for Steering System ............................. 2 . Inspection .............................................................. 14
.
PREPARATION .......................................................... 3
. TILT MECHANISM ............................................. 14 .
Special Service Tools .............................................. 3
. POWER STEERING GEAR AND LINKAGE ........... 15 .
H
Commercial Service Tool ........................................ 5 . Components .......................................................... 15
.
NOISE, VIBRATION, AND HARSHNESS(NVH) Removal and Installation ....................................... 16 .
TROUBLESHOOTING ............................................... 6 . Disassembly .......................................................... 18
.
NVH Troubleshooting Chart .................................... 6 . Inspection .............................................................. 18
. I
ON-VEHICLE SERVICE ............................................ 7 . BOOT ................................................................. 18
.
Checking Steering Wheel Play ................................ 7 . TIE-ROD OUTER AND INNER SOCKETS ........ 19 .
Checking Neutral Position on Steering Wheel ........ 7 . Assembly ............................................................... 19
. J
PRE-CHECKING .................................................. 7 . POWER STEERING OIL PUMP .............................. 21 .
CHECKING .......................................................... 7
. Components .......................................................... 21
.
Front Wheel Turning Angle ..................................... 7 . Pre-Disassembly Inspection .................................. 21 .
K
Checking Gear Housing Movement ........................ 8 . Disassembly .......................................................... 22
.
Checking and Adjusting Drive Belts ........................ 8 . Inspection .............................................................. 22
.
Checking Fluid Level ............................................... 8
. Assembly ............................................................... 22
.
Checking Fluid Leakage .......................................... 8 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 24 . L
Bleeding Hydraulic System ..................................... 8 . General Specifications ........................................... 24 .
Checking Steering Wheel Turning Force ................. 9 . Steering Wheel ...................................................... 24
.
Checking Hydraulic System .................................... 9 . Steering Column .................................................... 24
. M
STEERING WHEEL AND STEERING COLUMN .....11 . Steering Gear and Linkage .................................... 24 .
Components ...........................................................11
. Power Steering ...................................................... 25
.

PS-1
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EGS0009V

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 EGS0009W

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 EGS0009X

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
KV48101100 Measuring pinion rotating torque
(J26364) C
Torque adapter

NT169

ST27180001 Removing steering wheel E
(J25726-B)
Steering wheel puller

S-NT544
PS
HT72520000 Removing tie-rod and lower ball joint
(J25730-B) a: 33 mm (1.30 in)
Ball joint remover b: 50 mm (1.97 in)
r: R11.5 mm (0.453 in) H

NT546 I
(J-24319-B) Remove outer tie rod
Tie rod puller
J

K
LGIA0007E

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

S-NT547

KV48102500 Measuring oil pressure
(J33914)
Pressure gauge adapter

S-NT542

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
(J44372) Measuring steering wheel turning force
5-60 Pound pull gauge

WST052

(J44183-A) Measuring rack sliding force
20-100 Pound pull gauge

WST052

ST35300000 Installing power steering pump oil seal
( -- ) a: 49 mm (1.93 in) dia.
Drift b: 41 mm (1.61 in) dia.

NT073

(J-44615) Removing and installing accessory air bag
Air Bag Master Key Set bolts.

LRS194

PS-4
PREPARATION

Commercial Service Tool EGS0009Y

A
Tool number Description
Power steering pump attachment Disassembling and assembling power steer-
ing pump
B
Unit: mm (in)

C
S-NT179

10 mm Drift Installing power steering pump snap ring D

LST027
F

PS-5
Symptom

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