torque INFINITI QX56 2006 Factory Service Manual

LU-8Revision: November 2009
ENGINE OIL
2006 QX56
5. Install Tools.
6. Start the engine and warm it up to normal operating temperature.
7. Check the engine oil pressure with engine running under no-load.Engine oil pressure [Engine oil temperature at 80 °C (175 °F)]
Unit: kPa (kg/cm2
, psi)
CAUTION:
If the difference is extreme, check the oil passages and oil pump for leaks and blockages.
8. After the inspections, install oil pressure sensor as follows:
a. Remove old liquid gasket adhering to oil pressure sensor and engine.
b. Apply liquid gasket and tighten oil pressure sensor to the specification. Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-46, "
Recommended Chemical Prod-
ucts and Sealants" .
c. After warming up engine, make sure there is no leakage of engine oil with engine running.
Changing Engine OilEBS00LMT
CAUTION:

Be careful not to burn yourself, as the engine oil is hot.

Prolonged and repeated contact with used engine oil may
cause skin cancer; try to avoid direct skin contact with
used engine oil. If skin contact is made, wash thoroughly
with soap or hand cleaner as soon as possible.
1. Remove engine front undercover using power tool.
2. Warm up engine, and check for oil leakage from engine compo- nents. Refer to LU-7, "
OIL LEAKAGE" .
3. Stop engine and wait for 10 minutes.
4. Loosen oil filler cap, then remove drain plug.
5. Drain engine oil.
6. Install drain plug with new washer.
CAUTION:

Be sure to clean drain plug and install with new washer.
7. Refill with new engine oil. Refer to MA-11, "
Fluids and Lubricants" .
Tool number : ST25051001 (J-25695-1)
: ST25052000 (J-25695-2)
WBIA0571E
Engine Speed Approximate Discharge Pressure
Idle speed More than 98 (1.0, 14)
2,000 rpm More than 294 (3.0, 43)
Oil pressure sensor torque : 14.7 N·m (1.5 kg-m, 11 ft-lb)
Oil pan drain plug : 34.3 N·m (3.5 kg-m, 25 ft-lb)
KBIA2498E

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPR-3
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Revision: November 2009 2006 QX56
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS001W4
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PR-4
(front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
FFD-6, "
NVH Troubleshooting Chart
"
RFD-7, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
RAX-4, "
NVH Troubleshooting Chart
"
FSU-4, "
NVH Troubleshooting Chart
"
RSU-5, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
PR-3, "
NVH Troubleshooting Chart
"
BR-5, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
"
Possible cause and suspected parts
Uneven rotation torque
Rotation imbalance
Excessive run out
Differential
Axle
Suspension
Tires
Road wheel
Drive shaft
Brakes
Steering
Symptom Noise
×××××××××××
Shake ×××××××
Vibration ××××××××

PREPARATIONPS-3
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Revision: November 2009 2006 QX56
PREPARATIONPFP:00002
Special Service Tools (SST)EGS00121
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
ST3127 S000
(See J-25765-A)
Preload gauge
1. GG9103000
(J-25765-A)
Torque wrench
2. HT62940000
( — )
Socket adapter
3. HT62900000
( — )
Socket adapter Inspecting of pinion rotating torque and rota-
tional torque for ball joint
HT72520000
(J-25730-A)
Ball joint remover Removing steering outer socket
1. KV48105300-4 and 5295262U10
( — )
Connector A and O-ring
2. KV48105300-3 and 5295262U00
( — )
Eye-bolt and O-ring
3. KV48103500
(J-26357 and J-26357-10)
Pressure gauge and shut-off valve
4. KV48105300-1 and 5295262U00
( — )
Connector B and O-ring
5. KV48105300-2
( — )
Nut Measuring oil pump relief pressure
KV481J0010
(J-1859-A)
Steering wheel puller Removing steering wheel
KV481J0020
(J-42578)
Steering wheel puller legs Removing steering wheel
S-NT541
NT146
SGIA0427E
LHIA0043E
LHIA0044E

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPS-5
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Revision: November 2009 2006 QX56
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEGS000U8
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PS-6PS-6PS-18PS-18PS-18PS-6PS-7PS-7
EM-13, "
Checking Drive Belts
"
PS-7PS-13PS-15PS-11PS-10PS-15

PR-3, "
NVH Troubleshooting Chart
"
FFD-6, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
FSU-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
BR-5, "
NVH Troubleshooting Chart
"
Possible cause and sus-
pected parts
Fluid level
Air in hydraulic system
Outer socket ball joint swinging force
Outer socket ball joint rotating torque
Outer socket ball joint end play
Steering fluid leakage
Steering wheel play
Steering gear rack sliding force
Drive belt looseness
Improper steering wheel
Improper installation or looseness of tilt lock lever
Mounting rubber deterioration
Steering column deformation or damage
Improper installation or looseness of steering column
Steering linkage looseness
PROPELLER SHAFT
FRONT FINAL DRIVE
WHEEL HUB
SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
Symptom Noise
× × ××××× × × ××××××× ×
Shake ×××× ××××× ×
Vibration ××××× × ××× ×
Shimmy ××× × ×××× ×
Shudder × × ×××× ×

PS-18
POWER STEERING GEAR AND LINKAGE
Revision: November 20092006 QX56
INSPECTION AFTER DISASSEMBLY
Boot
Check boot for tears, cracks and deformation. Replace if necessary.
Gear Housing Assembly
Check gear housing assembly for dents, cracks or damage. Replace as an assembly if necessary.
Outer Socket and Inner Socket
SWING TORQUE

Measure the swing torque, using Tool. When ball stud and inner
socket start moving the measured value must be within the
specification. If the reading is outside the specification, replace
the socket.
ROTATING TORQUE

Measure the rotating torque, using Tool. If the value is outside
the specification, replace the outer sockets.
AXIAL END PLAY

Apply a load of 490 N (50 kg-f, 110 lb-f) to the ball stud axially.
Use a dial gauge to measure the amount of the movement that
the stud makes. If the value is outside the specification, replace
the sockets. Tool number : — (J-44372)
WGIA0131E
Item
Outer socket Inner socket
Measuring point Cotter pin hole of stud Shown as L: 83.2 mm (3.276 in)
Swing torque 0.3 − 2.9 N ·m (0.03 − 0.29 kg-m, 3 − 25 in-lb) 1.0 − 7.8 N·m (0.11 − 0.79 kg-m, 9 − 69 in-lb)
Measuring value (F) 4.84 − 46.7 N (0.50 − 4.7 kg-f, 4 - 34 lb-f) 12.1 − 93.7 N (1.3 − 9.5 kg, 9 − 69 lb)
Tool number : ST3127S000 (J-25765-A)
Rotating torque : 0.3 − 2.9 N·m (0.03 − 0.29 kg-m,
3 − 25 in-lb)
WGIA0132E
Outer socket : 0.5 mm (0.020 in) or less
Inner socket : 0.2 mm (0.008 in) or less
SGIA0057E

POWER STEERING OIL PUMPPS-21
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Revision: November 2009 2006 QX56
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceEGS000UJ
CHECKING RELIEF OIL PRESSURE
CAUTION:
Before starting work, confirm belt tension is proper.
1. Connect Tool between oil pump discharge connector and high
pressure hose and then bleed air from the hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches 50 – 80 °C (122 – 176°F).
CAUTION:

Warm up engine with shut-off valve fully opened. If engine is started with shut-off valve closed,
fluid pressure in power steering pump increases to maximum. This will raise fluid temperature
excessively.

Be careful not to contact hose with belt when engine is started.
3. With engine at idle, close shut-off valve and read the relief oil pressure.
CAUTION:
Do not close shut-off valve of pressure gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly.

If relief oil pressure is outside the specification, repair or replace oil pump. Refer to PS-22, "Disassem-
bly and Assembly" .
5. After inspection, disconnect oil pressure gauge and oil pressure gauge adapter from hydraulic circuit, con- nect oil pump discharge connector and high pressure hose. Add fluid and bleed air from hydraulic circuit
thoroughly. Refer to PS-6, "
Air Bleeding Hydraulic System" .
Removal and InstallationEGS000UK
REMOVAL
1. Drain power steering fluid from reservoir tank.
2. Remove engine room cover. Refer to EM-12, "
Removal and Installation" .
3. Remove air duct assembly. Refer to EM-15, "
Removal and Installation" .
4. Remove power steering reservoir tank.
5. Remove serpentine drive belt belt from auto tensioner and power steering pump. Refer to EM-13,
"Removal and Installation" .
6. Disconnect pressure sensor electrical connector.
7. Remove high pressure and low pressure piping from power steering oil pump. Refer to PS-23, "
HYDRAU-
LIC LINE" .
8. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Installation is in the reverse order of removal. Refer to PS-23, "HYDRAULIC LINE" for tightening torque.

After installation, bleed air. Refer to PS-6, "Air Bleeding Hydraulic System" .
NOTE:
Belt tension is automatic and requires no adjustment.
Tool number:
Pressure gauge and shut-off valve KV48103500
(J26357 and J26357-10)
Oil pump side Connector A and
O-ring
KV48105300-4 and 5295262U10
(
— )
Eye-bolt and O-ring KV48105300-3 and 5295262U00
(
— )
High pressure
piping side Connector B and
O-ring
KV48105300-1 and 5295262U00
(
— )
Nut KV48105300-2
(
— )
Relief oil pressure
: 9.0 – 9.8 mPa (91.77 – 99.93 kg/cm2 , 1305.34 – 1421.37 psi)
SGIA0570E

PS-24
HYDRAULIC LINE
Revision: November 20092006 QX56
Installation is in the reverse order of removal.

Confirm mating marks are aligned with hose and clamp, then
correct if needed.

To install eye joint, align projection of eye joint with notch of
power steering pump, and attach eye joint to power steering
pump properly. Tighten eye bolt by hand fully, then torque to
specification.
SGIA0563E
WGIA0089E

PS-26
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
Inspection After Installation
Steering Outer Socket and Inner SocketEGS000UP
Unit: mm (in)
Range
“A ” 61.3 mm (2.41 in)
WGIA0083E
Tie-rod ball joint outer socketSwinging torque
0.3 − 2.9 N ·m (0.03 − 0.29 kg-m, 3 − 25 in-lb)
Measurement on spring balance
Measuring point: cotter pin hole of stud 4.84
− 46.7 N (0.50 − 4.7 kg, 4 − 34 lb)
Rotating torque 0.3 − 2.9 N ·m (0.03 − 0.29 kg-m, 3 − 25 in-lb)
Axial end play 0.5 mm (0.020 in) or less
Tie-rod ball joint inner socket Swinging torque
1.0 − 7.8 N ·m (0.11 − 0.79 kg-m, 9 − 69 in-lb)
Measurement on spring balance

Measuring point: "L" mark see above,
"L"=83.2 mm (3.276 in). 12.1
− 93.7 N (1.3 − 9.5 kg, 9 − 69 lb)
Axial end play 0.2 mm (0.08 in) or less
SGIA0358E
Inner socket length “L ” 115.2 (4.54)
SGIA0167E

RF-2
PRECAUTIONS
Revision: November 20092006 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EIS004VI
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.
Precautions EIS004VJ

Disconnect both battery cables in advance.

Never tamper with or force air bag lid open, as this may adversely affect air bag performance.

Be careful not to scratch pad and other parts.

When removing or disassembling any part, be careful not to damage or deform it. Protect parts which may
get in the way with cloth.

When removing parts with a screwdriver or other tool, protect parts by wrapping them with vinyl or tape.

Keep removed parts protected with cloth.

If a clip is deformed or damaged, replace it.

If an unreusable part is removed, replace it with a new one.

Tighten bolts and nuts firmly to the specified torque.

After re-assembly has been completed, make sure each part functions correctly.

Remove stains in the following way.
Water-soluble stains:
Dip a soft cloth in warm water, and then squeeze it tightly. After wiping the stain, wipe with a soft dry cloth.
Oil stain:
Dissolve a synthetic detergent in warm water (density of 2 to 3% or less), dip the cloth, then clean off the stain
with the cloth. Next, dip the cloth in fresh water and squeeze it tightly. Then clean off the detergent completely.
Then wipe the area with a soft dry cloth.

Do not use any organic solvent, such as thinner or benzine.

RF-24
SUNROOF
Revision: November 20092006 QX56
HEIGHT DIFFERENCE ADJUSTMENT
If an excessive height difference between glass lid assembly and roof panel is found, adjust in the following
manner:
1. Remove headlining. Refer to EI-38, "
HEADLINING" .
2. Loosen sunroof frame assembly nuts and sunroof bracket bolts.
3. Add shims until gap is within specification "A-A". NOTE:
Temporarily snug nuts and bolts to prevent movement between each adjustment.
4. Tilt glass lid assembly up and down several times to check that it moves and seals properly.
5. Tighten sunroof frame assembly nuts and sunroof bracket bolts. NOTE:
First tighten left front then right rear sunroof frame assembly to prevent uneven torque while tightening
remaining sunroof bracket bolts.
6. Install headlining. Refer to EI-38, "
HEADLINING" .
Removal and InstallationEIS007XH

After any adjustment, check sunroof operation and glass lid assembly alignment.

Handle glass lid assembly with care so not to cause damage.

For easier installation, mark each point before removal.
CAUTION:

Always work with a helper.

Before removal, fully close the glass lid assembly. Then, after removal, do not move the sunroof
motor assembly.