service INFINITI QX56 2006 Factory Service Manual

PREPARATIONFFD-3
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Revision: November 2009 2006 QX56
PREPARATIONPFP:00002
Special Service ToolsEDS0044Y
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
ST35271000
(—)
Drift Installing drive pinion front bearing outer
race.
a: 72 mm (2.83 in) dia.
b: 36 mm (1.42 in) dia.
KV38100500
(J-25273)
Drift Installing front oil seal.
a: 80 mm (3.15 in) dia.
b: 60 mm (2.36 in) dia.
ST30021000
(—)
Puller

Removing side bearing inner race.

Removing drive pinion rear bearing inner
race.
KV38100300
(J-25523)
Drift Installing side bearing inner race.
a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia.
ST30901000
(—)
Drift Installing drive pinion rear bearing outer race.
A: 79 mm (3.11 in) dia.
B: 45 mm (1.77 in) dia.
C: 35.2 mm (1.39 in) dia.
KV40104810
(—)
Drift Installing drive pinion front bearing outer
race.
a: 68 mm (2.68 in) dia.
b: 55 mm (2.17 in) dia.
KV38102200
(—)
Drift Installing front oil seal.
a: 90 mm (3.54 in) dia
.
b: 55.3 mm (2.18 in) dia.
ZZA0702D
ZZA0811D
ZZA0700D
ZZA1046D
SDIA0217J
ZZA1003D
NT660

PREPARATIONFFD-5
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Revision: November 2009 2006 QX56
Commercial Service ToolsEDS0044Z
—
(D-103)
Remover Removing drive pinion front bearing outer
race
—
(C-4307)
Remover Removing drive pinion rear bearing outer
race
Tool number
(Kent-Moore No.)
Tool name
Description
LDIA0135E
LDIA0135E
(Kent-Moore No.)
Tool name
Description
(SP8P)
Slide hammer

Removing front oil seal

Removing side oil seal
Power tool Loosening bolts and nuts
LDIA0133E
PBIC0190E

SERVICE DATA AND SPECIFICATIONS (SDS)FFD-31
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsEDS00458
Inspection and AdjustmentEDS00459
DRIVE GEAR RUNOUT
Unit: mm (in)
SIDE GEAR CLEARANCE
Unit: mm (in)
PRELOAD TORQUE
Unit: N·m (kg-m, in-lb)
BACKLASH
Unit: mm (in)
COMPANION FLANGE RUNOUT
Unit: mm (in)
Applied model
VK56E
Final drive model M205
Gear ratio 3.357
Number of teeth (Drive gear/Drive pinion) 47/14
Differential gear oil capacity (Approx.) 1.6 (3 3/8 US pt, 2 7/8 Imp pt)
Number of pinion gears 2
Drive pinion adjustment spacer type Collapsible
ItemRunout limit
Drive gear back face 0.08 (0.0031) or less
ItemSpecification
Side gear back clearance (Clearance between side gear and dif-
ferential case for adjusting side gear backlash) 0.20 (0.0079) or less
(Each gear should rotate smoothly without excessive resistance during differential motion.)
Item Specification
Drive pinion bearing preload torque 2.3 - 3.4 (0.23 - 0.35, 21 - 31)
Total preload torque
(Total preload torque = drive pinion bearing preload torque + side
bearing preload torque). 2.98 - 4.76 (0.31 - 0.48, 27 - 42)
Item
Specification
Drive gear to drive pinion backlash 0.12 - 0.20 (0.0050 - 0.0079)
ItemRunout limit
Companion flange face 0.10 (0.0039) or less
Companion flange inner side 0.13 (0.0051) or less

FFD-32
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
SELECTIVE PARTS
Drive Pinion Height Adjusting Washer
Unit: mm (in)
*Always check with the Parts Department for the latest parts information.
Side Gear Thrust Washer
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information. Thickness Package part number*
1.22 (0.048)
1.24 (0.049)
1.27 (0.050)
1.30 (0.051)
1.32 (0.052) 38154 8S111
1.35 (0.053)
1.37 (0.054)
1.40 (0.055)
1.42 (0.056)
1.45 (0.057) 38154 8S112
1.47 (0.058)
1.50 (0.059)
1.52 (0.060)
1.55 (0.061)
1.57 (0.062) 38154 8S113
1.60 (0.063)
1.63 (0.064)
1.65 (0.065)
1.68 (0.066)
1.70 (0.067) 38154 8S114
1.73 (0.068)
1.75 (0.069)
1.78 (0.070)
1.80 (0.071)
1.83 (0.072) 38154 8S115
Thickness
Package part number*
0.76 (0.030)
0.79 (0.031)
0.81 (0.032)
0.84 (0.033)
0.87 (0.034) 38424 8S111
0.89 (0.035)
0.91 (0.036)
0.94 (0.037)
0.97 (0.038)
0.99 (0.039) 38424 8S112

FL-1
FUEL SYSTEM
B ENGINE
CONTENTS
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SECTION
A
FL
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tools .......................................... ..... 3
Commercial Service Tool .................................... ..... 3
FUEL SYSTEM ........................................................... 4 Checking Fuel Lines ................................................. 4
General Precautions ........................................... ..... 4
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY ......................................
..... 6
Removal and Installation ..................................... ..... 6
REMOVAL ........................................................ ..... 6
INSTALLATION ................................................ ..... 9
INSPECTION AFTER INSTALLATION ............. ..... 9
FUEL TANK ........................................................... ... 10
Removal and Installation ..................................... ... 10
REMOVAL ........................................................ ... 11
INSTALLATION ................................................ ... 14
INSPECTION AFTER INSTALLATION ............. ... 14
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 15
Standard and Limit ............................................... ... 15

FL-2Revision: November 2009
PRECAUTIONS
2006 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EBS00RBP
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:

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.

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.

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.

PREPARATIONFL-3
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Revision: November 2009 2006 QX56
PREPARATIONPFP:00002
Special Service ToolsEBS00M3O
The actual shapes of the Kent-Moore tools may differ from those of the special tools illustrated here.
Commercial Service ToolEBS00M3P
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-46536)
Fuel tank lock ring tool Removing and installing fuel tank lock ring
LBIA0398E
Tool name
Description
Power tool Loosening bolts and nuts
PBIC0190E

SERVICE DATA AND SPECIFICATIONS (SDS)FL-15
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Revision: November 2009 2006 QX56
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Standard and LimitEBS00M3U
Fuel tank capacity
105.8 (28 US gal, 23 1/4 Imp gal)

FL-16Revision: November 2009
SERVICE DATA AND SPECIFICATIONS (SDS)
2006 QX56

FSU-1
FRONT SUSPENSION
E SUSPENSION
CONTENTS
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SECTION
A
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FSU
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 2
Precautions ......................................................... ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tools .......................................... ..... 3
Commercial Service Tools ................................... ..... 3
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 4
NVH Troubleshooting Chart ................................ ..... 4
FRONT SUSPENSION ASSEMBLY ...................... ..... 5
Components ........................................................ ..... 5
ON-VEHICLE SERVICE ........................................ ..... 6
Front Suspension Parts ....................................... ..... 6
Front Wheel Alignment ........................................ ..... 6
PRELIMINARY INSPECTION .......................... ..... 6
GENERAL INFORMATION AND RECOMMEN-
DATIONS ......................................................... ..... 6
THE ALIGNMENT PROCESS ......................... ..... 7
CAMBER AND CASTER .................................. ..... 7
TOE-IN ............................................................. ..... 7
FRONT WHEEL TURNING ANGLE ................ ..... 8
COIL SPRING AND SHOCK ABSORBER ............ ... 10
Removal and Installation ..................................... ... 10
REMOVAL ........................................................ ... 10
INSTALLATION ................................................ ... 10
Disassembly and Assembly ................................ ... 10
DISASSEMBLY ................................................ ... 10
INSPECTION AFTER DISASSEMBLY ............ .... 11
ASSEMBLY ...................................................... .... 11
STABILIZER BAR .................................................. ... 12
Removal and Installation ..................................... ... 12
REMOVAL ........................................................ ... 12
INSPECTION AFTER REMOVAL .................... ... 12
INSTALLATION ................................................ ... 12UPPER LINK ..........................................................
... 13
Removal and Installation ..................................... ... 13
REMOVAL ........................................................ ... 13
INSPECTION AFTER REMOVAL .................... ... 13
INSTALLATION ................................................ ... 13
LOWER LINK ......................................................... ... 14
Removal and Installation ..................................... ... 14
REMOVAL ........................................................ ... 14
INSPECTION AFTER REMOVAL .................... ... 14
INSTALLATION ................................................ ... 14
UPPER BALL JOINT AND LOWER BALL JOINT ... 15 Removal and Installation ..................................... ... 15
Inspection ............................................................ ... 15
SWINGING FORCE ......................................... ... 15
TURNING FORCE ............................................ ... 15
VERTICAL END PLAY ..................................... ... 16
KNUCKLE .............................................................. ... 17
On-Vehicle Inspection and Service ...................... ... 17
Removal and Installation ..................................... ... 17
REMOVAL ........................................................ ... 17
INSPECTION AFTER REMOVAL .................... ... 18
INSTALLATION ................................................ ... 18
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 19
General Specifications ......................................... ... 19
Spring Free Height .............................................. ... 19
Wheel Alignment (Unladen*
1 )*6 .......................... ... 19
Ball Joint .............................................................. ... 20
Wheelarch Height (Unladen*
1 ) .............................. 20