Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G37 2008 Coupe Approved Infiniti G37 Coupe 2008 st

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STEERING

SECTION
STEERING SYSTEM
ST B

E
CONTENTS
SYMPTOM DIAGNOSIS .............................. 3
. WITHOUT ELECTRIC MOTOR : Inspection ..........17
. F

NOISE, VIBRATION AND HARSHNESS WITH ELECTRIC MOTOR ........................................17 .
(NVH) TROUBLESHOOTING ............................ 3
. WITH ELECTRIC MOTOR : Exploded View ..........17 .
ST
NVH Troubleshooting Chart ..................................... 3
. WITH ELECTRIC MOTOR : Removal and Instal-
lation .......................................................................18
.
PRECAUTION .............................................. 6
. WITH ELECTRIC MOTOR : Inspection ..................18 .
H
PRECAUTIONS .................................................. 6
. LOWER SHAFT ................................................ 20
Precaution for Supplemental Restraint System
WITHOUT 4WAS ......................................................20
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- I
WITHOUT 4WAS : Exploded View .........................20 .
SIONER" .................................................................. 6
.
WITHOUT 4WAS : Removal and Installation .........20 .
Precaution Necessary for Steering Wheel Rota-
WITHOUT 4WAS : Inspection ................................21 .
tion after Battery Disconnect .................................... 6.
J
Service Notice or Precautions for Steering System WITH 4WAS ..............................................................21
.
...... 6 WITH 4WAS : Exploded View ................................21 .
WITH 4WAS : Removal and Installation .................22 .
PREPARATION ........................................... 8
. WITH 4WAS : Inspection ........................................24 . K

PREPARATION .................................................. 8
. WITH 4WAS : Disassembly and Assembly ............24 .
Special Service Tools ............................................... 8
. STEERING GEAR AND LINKAGE ................... 26 L
Commercial Service Tools ....................................... 9
. Exploded View ........................................................26
.
Removal and Installation ........................................27 .
ON-VEHICLE MAINTENANCE ................... 10
.
Disassembly and Assembly ....................................28 .
M
POWER STEERING FLUID ..............................10
. Inspection ...............................................................32
.
Inspection ............................................................... 10
.
POWER STEERING OIL PUMP ....................... 34
STEERING WHEEL ...........................................12
. N
EXCEPT FOR SPORT MODELS ..............................34 .
Inspection ............................................................... 12
.
EXCEPT FOR SPORT MODELS : Exploded View 34 ....
ON-VEHICLE REPAIR ................................ 15
. EXCEPT FOR SPORT MODELS : Removal and
Installation ..............................................................35
. O
STEERING WHEEL ...........................................15
. EXCEPT FOR SPORT MODELS : Disassembly
Exploded View ....................................................... 15
. and Assembly .........................................................35
.
Removal and Installation ........................................ 15
. EXCEPT FOR SPORT MODELS : Inspection ........38 . P

STEERING COLUMN ........................................16
. SPORT MODELS ......................................................39
.
SPORT MODELS : Exploded View ........................39 .
WITHOUT ELECTRIC MOTOR ................................ 16 . SPORT MODELS : Removal and Installation .........40 .
WITHOUT ELECTRIC MOTOR : Exploded View.... 16 SPORT MODELS : Disassembly and Assembly ....41
WITHOUT ELECTRIC MOTOR : Removal and In- SPORT MODELS : Inspection ................................43 .
stallation ................................................................. 16
.

Revision: 2007 June ST-1 G37 Coupe
HYDRAULIC LINE ............................................ 45
. Steering Wheel Turning Force ............................... 47 .
Exploded View ....................................................... 45
. Steering Angle ....................................................... 47
.
Steering Column Operating Range ........................ 47 .
SERVICE DATA AND SPECIFICATIONS Lower Shaft Sliding Range .................................... 48 .
(SDS) .......................................................... 47
. Rack Sliding Force ................................................. 48
.
Rack Stroke ........................................................... 48
.
SERVICE DATA AND SPECIFICATIONS Socket Swing Force and Rotating Torque ............. 48 .
(SDS) ................................................................. 47
. Socket Axial End Play ............................................ 49
.
General Specifications ........................................... 47
. Inner Socket Length ............................................... 49
.
Steering Wheel Axial End Play and Play ............... 47 . Relief Oil Pressure ................................................. 49
.

Revision: 2007 June ST-2 G37 Coupe
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
< SYMPTOM DIAGNOSIS >
SYMPTOM DIAGNOSIS A
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart INFOID:0000000001666213
B
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
C

Revision: 2007 June ST-3 G37 Coupe
Reference

Revision: 2007 June
< SYMPTOM DIAGNOSIS >

Possible cause and SUSPECTED PARTS
Fluid level ST-10, "Inspection"
Air in hydraulic system ST-10, "Inspection"
Outer/inner socket ball joint swinging torque ST-32, "Inspection"
Outer/inner socket ball joint rotating torque ST-32, "Inspection"
Outer/inner socket ball joint end play ST-32, "Inspection"
Steering fluid leakage ST-10, "Inspection"
Steering wheel play ST-12, "Inspection"

ST-4
Steering gear rack sliding force ST-12, "Inspection"
Drive belt looseness EM-12, "Checking"
Improper steering wheel ST-12, "Inspection"
Improper installation or looseness of tilt lock lever --
Mounting looseness ST-26, "Exploded View"
Steering column deformation or damage ST-17, "WITHOUT ELECTRIC MOTOR : Inspection", ST-18, "WITH ELECTRIC MOTOR : Inspection"
Improper installation or looseness of steering column ST-16, "WITHOUT ELECTRIC MOTOR : Exploded View", ST-17, "WITH ELECTRIC MOTOR : Exploded View"
Steering linkage looseness ST-26, "Exploded View"
4WAS front actuator ST-32, "Inspection"
PROPELLER SHAFT NVH in DLN section.
DIFFERENTIAL NVH in DLN section.
AXLE and SUSPENSION NVH in FAX, RAX, FSU, RSU section.
TIRES NVH in WT section.
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

ROAD WHEEL NVH in WT section.
DRIVE SHAFT NVH in FAX section.
BRAKES NVH in BR section.

G37 Coupe
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
< SYMPTOM DIAGNOSIS >
Noise

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