fuel type INFINITI QX4 2005 Factory User Guide

EM-1
ENGINE MECHANICAL
B ENGINE
CONTENTS
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SECTION EM
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Revision: October 20052005 QX56 PRECAUTIONS .......................................................... 3
Precautions for Drain Engine Coolant ...................... 3
Precautions for Disconnecting Fuel Piping .............. 3
Precautions for Removal and Disassembly ............. 3
Precautions for Inspection, Repair and Replace-
ment ......................................................................... 3
Precautions for Assembly and Installation ............... 3
Parts Requiring Angular Tightening ......................... 3
Precautions for Liquid Gasket .................................. 4
REMOVAL OF LIQUID GASKET SEALING .......... 4
LIQUID GASKET APPLICATION PROCEDURE ..... 4
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 7
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 9
NVH Troubleshooting —Engine Noise ..................... 9
Use the Chart Below to Help You Find the Cause
of the Symptom. ..................................................... 10
ENGINE ROOM COVER ...........................................11
Removal and Installation .........................................11
REMOVAL ............................................................11
INSTALLATION ....................................................11
DRIVE BELTS ........................................................... 12
Checking Drive Belts .............................................. 12
Tension Adjustment ................................................ 12
Removal and Installation ........................................ 12
DRIVE BELT ....................................................... 12
INSTALLATION ................................................... 13
Drive Belt Auto Tensioner and Idler Pulley ............. 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 13
AIR CLEANER AND AIR DUCT ............................... 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 14
CHANGING AIR CLEANER FILTER ................... 14INTAKE MANIFOLD ................................................. 15
Removal and Installation ........................................ 15
REMOVAL ........................................................... 15
INSTALLATION ................................................... 17
INSPECTION AFTER INSTALLATION ................ 18
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST .......................................................................... 19
Removal and Installation ........................................ 19
REMOVAL ........................................................... 19
INSPECTION AFTER REMOVAL ....................... 20
INSTALLATION ................................................... 20
OIL PAN AND OIL STRAINER ................................. 22
Removal and Installation ........................................ 22
REMOVAL ........................................................... 22
INSPECTION AFTER REMOVAL ....................... 23
INSTALLATION ................................................... 24
INSPECTION AFTER INSTALLATION ................ 25
IGNITION COIL ......................................................... 26
Removal and Installation ........................................ 26
REMOVAL ........................................................... 26
INSTALLATION ................................................... 26
SPARK PLUG (PLATINUM-TIPPED TYPE) ............. 27
Removal and Installation ........................................ 27
REMOVAL ........................................................... 27
INSPECTION AFTER REMOVAL ....................... 27
INSTALLATION ................................................... 28
FUEL INJECTOR AND FUEL TUBE ........................ 29
Removal and Installation ........................................ 29
REMOVAL ........................................................... 29
INSTALLATION ................................................... 30
INSPECTION AFTER INSTALLATION ................ 32
ROCKER COVER ..................................................... 33
Removal and Installation ........................................ 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 34
TIMING CHAIN .......................................................... 35
Removal and Installation ........................................ 35
REMOVAL ........................................................... 36
INSPECTION AFTER REMOVAL ....................... 38
INSTALLATION ................................................... 39

ENGINE ASSEMBLY
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Revision: October 20052005 QX56
ENGINE ASSEMBLYPFP:10001
Removal and InstallationEBS00LMI
WA RN ING:

Situate vehicle on a flat and solid surface.

Place chocks at front and back of rear wheels.

For engines not equipped with engine slingers, attach proper slingers and bolts described in
PA R T S C ATA L O G.
CAUTION:

Always be careful to work safely, avoid forceful or uninstructed operations.

Do not start working until exhaust system and engine coolant are cooled sufficiently.

If items or work required are not covered by the engine section, refer to the applicable sections.

Always use the support point specified for lifting.

Use either 2-point lift type or separate type lift. If board-on type is used for unavoidable reasons,
support at the rear axle jacking point with transmission jack or similar tool before starting work, in
preparation for the backward shift of center of gravity.

For supporting points for lifting and jacking point at rear axle, refer to GI-40, "Garage Jack and
Safety Stand" .
REMOVAL
Preparation
1. Drain the engine coolant. Refer to MA-13, "DRAINING ENGINE COOLANT" .
2. Partially drain the A/T fluid. Refer to MA-24, "
Changing A/T Fluid" .
3. Release the fuel pressure. Refer to EC-93, "
FUEL PRESSURE RELEASE" .
4. Remove the engine hood. Refer to BL-13, "
Removal and Installation of Hood Assembly" .
1. Rear engine mounting insulator 4x4 2. Rear engine mounting insulator 4x2 3. LH engine mounting bracket
4. LH heat shield plate 5. LH engine mounting insulator 6. RH engine mounting bracket
7. RH heat shield plate 8. RH engine mounting insulator
LBIA0397E

FSU-6
ON-VEHICLE SERVICE
Revision: October 20052005 QX56
ON-VEHICLE SERVICEPFP:00000
Front Suspension PartsEES001GI
Check front suspension parts for excessive play, cracks, wear and
other damage.

Shake each front wheel to check for excessive play.
If looseness is noted, inspect wheel bearing end play, then
check ball joint end play. Refer to FAX-5, "
WHEEL BEARING
INSPECTION" and FSU-15, "Inspection" .

Make sure that the cotter pin is inserted (4x4 only).

Retighten all nuts and bolts to the specified torque.

Check shock absorber for oil leakage and other damage.

Check suspension ball joint for grease leakage and ball joint
dust cover for cracks and other damage.
Front Wheel AlignmentEES001GJ
PRELIMINARY INSPECTION
WAR NIN G:
Always adjust the alignment with the vehicle on a flat surface.
NOTE:
If alignment is out of specification, inspect and replace any damaged or worn suspension parts before making
any adjustments.
1. Check and adjust the wheel alignment with the vehicle under unladen conditions. “Unladen conditions”
means that the fuel, coolant, and lubricant are full; and that the spare tire, jack, hand tools and mats are in
their designated positions.
2. Check the tires for incorrect air pressure and excessive wear.
3. Check the wheels for run out and damage. Refer to WT-5, "
Inspection" .
4. Check the wheel bearing axial end play. Refer to FAX-5, "
WHEEL BEARING INSPECTION" .
5. Check the shock absorbers for leaks or damage.
6. Check each mounting point of the suspension components for any excessive looseness or damage.
7. Check each link, arm, and the rear suspension member for any damage.
8. Check the vehicle height. Refer to FSU-21, "
Wheelarch Height (Unladen*1 )" .

Verify the level using Consult-II memory register 1103 and set to 0 ± 10 mm (0 ± 0.39 in) as necessary.
GENERAL INFORMATION AND RECOMMENDATIONS
1. A Four-Wheel Thrust Alignment should be performed.

This type of alignment is recommended for any NISSAN vehicle.

The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel
is centered.

The alignment machine itself should be capable of accepting any NISSAN vehicle.

The alignment machine should be checked to ensure that it is level.
2. Make sure the alignment machine is properly calibrated.

Your alignment machine should be regularly calibrated in order to give correct information.Suspension component torques : Refer to FSU-5,
"Components" .SM A52 5A
SFA392B

FSU-20
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: October 20052005 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General Specifications (Front)EES001GT
Wheel Alignment (Unladen*1 )*6EES001GU
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Target value 37° 31′ (37.52°)
*3: Target value 33° 59′ (33.98°)
*4: Target value 37° 44′ (37.73°)
*5: Target value 33° 29′ (33.48°)
*6: Some vehicles may be equipped with straight (non-adjustable) lower link bolts and washers. In order to adjust camber and caster on
these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers.Suspension type Independent double wishbone coil over shock
Shock absorber type Double-acting hydraulic
StabilizerStandard equipment
Drive type4x2 4x4
Camber
Degree minute (decimal degree)Minimum -0° 51′ (-0.85°)-0° 33′ (-0.55°)
Nominal -0° 6′ (-0.10°)0° 12′ (0.20°)
Maximum 0° 39′ (0.65°)0° 57′ (0.95°)
Cross camber 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Caster
Degree minute (decimal degree)Minimum 3° 15′ (3.25°)2° 45′ (2.75°)
Nominal 4° 0′ (4.00°)3° 30′ (3.50°)
Maximum 4° 45′ (4.75°)4° 15′ (4.25°)
Cross caster 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Kingpin inclination
Degree minute (decimal degree)13° 32′ (13.53°)13°13′ (13.22°)
Total toe-inDistance (A − B)Minimum 1.8 mm (0.07 in) 1.8 mm (0.07 in)
Nominal 2.8 mm (0.11 in) 2.8 mm (0.11 in)
Maximum 3.8 mm (0.15 in) 3.8 mm (0.15 in)
Angle (left side and right side)
Degree minute (decimal degree)Minimum 0° 3′ (0.05°)0° 3′ (0.05°)
Nominal 0° 5′ (0.08°)0° 5′ (0.08°)
Maximum 0° 7′ (0.12°)0° 7′ (0.12°)
Wheel turning angle
(full turn)Inside
Degree minute (decimal degree)34° 31′ – 38° 31′ *2
(34.52° – 38.52°)34° 44′ – 38° 44′ *4
(34.73° – 38.73°)
Outside
Degree minute (decimal degree)30° 59′ – 34° 59′ *3
(30.98° – 34.98°)30° 29′ – 34° 29′ *5
(30.48° – 34.48°)
SFA234AC

SERVICE DATA AND SPECIFICATIONS (SDS)
FSU-21
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FSU
Revision: October 20052005 QX56
Ball JointEES001GV
*1 Measure at cotter pin hole
*2 Measure at groove
Wheelarch Height (Unladen*1 )EES001GW
Unit: mm (in)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Confirm level using Consult-II, register 1103. Set rear wheel arch height to “0” if necessary.Swinging force “A”Upper ball joint 8.1 – 103.2 N (0.8 – 10.5 kg-f, 1.8 – 23.2 lb-f) *1
Lower ball joint 11.4 – 145.5 N (1.1 – 14.8 kg-f, 2.5 – 32.7 lb-f) *2
Turning torque “B” 0.5 - 6.4 N·m (0.05 - 0.65 kg-m, 4 - 57 in-lb)
Vertical end play “C”0 mm (0 in)
SFA858AWEIA0076E
Suspension type
Air leveling*2
Applied model 4x2 4x4
Front wheelarch height (Hf)913
(35.94)931
(36.65)
Rear wheelarch height (Hr)912
(35.91)932
(36.69)
LEIA0085E

GI-46
IDENTIFICATION INFORMATION
Revision: October 20052005 QX56
IDENTIFICATION INFORMATIONPFP:00010
Model VariationEAS001G2
Prefix and suffix designations:
Position Character Qualifier Definition
1 J Body type J: Wagon
2
PK Engine PK: VK56DE
3
4AAxleA: 2WD
W: 4WD
5LDrive L: LH
6VGradeV: LE
7 K Transmission K: RE5R05A (5A/T)
8
I40 Model I40: 2005 QX56 9
10
11 E Intake E: Multiport fuel injection system engine
12 U ZoneN: Canada
U: USA
13 A Equipment A: Standard
14
XXXXX Option Codes Option Codes 15
16
17
18
Drive Type Body Engine Transmission Destination Grade Model
2WD Wagon VK56DE RE5R05A (5A/T) U.S.A. LE JPKALVK-EUA
4WD Wagon VK56DE RE5R05A (5A/T)U.S.A.
LEJPKWLVK-EUA
Canada JPKWLVK-ENA

LAN-8
[CAN]
CAN COMMUNICATION
Revision: October 20052005 QX56
TYPE2
System diagram

Type2
Input/output signal chart
T: Transmit R: Receive
PKIA8134E
Signals ECM TCMICC
sen-
sorICC
unitDriver
seat
con-
trol
unitCom-
bina-
tion
mete
rDis-
play
con-
trol
unitBCMSteer-
ing
angle
sensorFront
air
con-
trol ABS
actu-
ator
and
elec-
tric
unit
(con-
trol
unit)IPD
M E/
R
Engine speed signal T R R R R R
Engine status signal T R R
Engine coolant temperature signal T R R R
A/T self-diagnosis signal R T
Accelerator pedal position signal T R R R
Closed throttle position signal T R R
Wide open throttle position signal T R
Battery voltage signal T R
Key switch signal R T
Ignition switch signal R T R
P range signal T R R
Stop lamp switch signal R T
Parking brake switch signal T R
Fuel consumption monitor signalTR
TR
Turbine revolution signal R T R
Output shaft revolution signal R T R
A/C switch signal R T
A/C compressor request signal T R R
Blower fan motor switch signal R T R

CAN COMMUNICATION
LAN-13
[CAN]
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LAN
Revision: October 20052005 QX56
TYPE 4
System diagram

Ty p e 4
Input/output signal chart
T: Transmit R: Receive
PKIA8135E
Signals ECM TCMICC
sen-
sorICC
unitDriver
seat
con-
trol
unitCom-
bina-
tion
mete
rDis-
play
con-
trol
unitBCMStee r-
ing
angle
sen-
sorFront
air
con-
trolTra ns -
fer
con-
trol
unitABS
actu-
ator
and
elec-
tric
unit
(con-
trol
unit)IPD
M
E/R
A/T self-diagnosis signal R T
Stop lamp switch signal R T
Parking brake switch signal T R
Battery voltage signal T R
Key switch signal R T
Ignition switch signal R T R
P range signal T R R
Closed throttle position signal T R R
Wide open throttle position signal T R
Engine speed signal T R R R R R R
Engine status signal T R R
Engine coolant temperature sig-
nalTR R R
Accelerator pedal position signal T R R R R
Fuel consumption monitor signalTR
TR
Turbine revolution signal R T R
Output shaft revolution signal R T R R
A/C switch signal R T
A/C compressor request signal T R R
Blower fan motor switch signal R T R

LT-78
FRONT FOG LAMP
Revision: October 20052005 QX56
Aiming AdjustmentEKS00B9M
The fog lamp is a semi-sealed beam type which uses a replaceable halogen bulb. Before performing aiming
adjustment, make sure of the following.

Keep all tires inflated to correct pressure.

Place vehicle on level ground.

See that vehicle is unloaded (except for full levels of coolant,
engine oil and fuel, and spare tire, jack, and tools). Have the
driver or equivalent weight placed in driver seat.
Adjust aiming in the vertical direction by turning the adjustment
screw.
NOTE:
Access adjustment screw from underneath front bumper. Turn screw
clockwise to raise pattern and counterclockwise to lower pattern.
1. Set the distance between the screen and the center of the fog
lamp lens as shown.
2. Turn front fog lamps ON.
3. Adjust front fog lamps using adjusting screw so that the top edge
of the high intensity zone is 200 mm (7.9 in) below the height of
the fog lamp centers as shown.

When performing adjustment, if necessary, cover the headlamps
and opposite fog lamp.
SEL350X
MEL327G
MEL328GA

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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SECTION MA
A
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MA
Revision: October 20052005 QX56 PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tool ......................................... 4
GENERAL MAINTENANCE ....................................... 5
General Maintenance ............................................... 5
PERIODIC MAINTENANCE ....................................... 7
Introduction of Periodic Maintenance ....................... 7
Maintenance For Off-road Driving (4WD only) ......... 7
Schedule 1 ............................................................... 7
EMISSION CONTROL SYSTEM MAINTE-
NANCE .................................................................. 7
CHASSIS AND BODY MAINTENANCE ............... 8
Schedule 2 ............................................................... 9
EMISSION CONTROL SYSTEM MAINTE-
NANCE .................................................................. 9
CHASSIS AND BODY MAINTENANCE ............. 10
RECOMMENDED FLUIDS AND LUBRICANTS .......11
Fluids and Lubricants ..............................................11
SAE Viscosity Number ........................................... 12
GASOLINE ENGINE OIL .................................... 12
ANTI-FREEZE COOLANT MIXTURE RATIO ..... 12
ENGINE MAINTENANCE ......................................... 13
Checking Drive Belts .............................................. 13
DRIVE BELT TENSION ...................................... 13
Changing Engine Coolant ...................................... 13
DRAINING ENGINE COOLANT ......................... 13
REFILLING ENGINE COOLANT ........................ 14
FLUSHING COOLING SYSTEM ......................... 15
Checking Fuel Lines ............................................... 16
Changing Fuel Filter ............................................... 16
Changing Engine Air Cleaner Filter ........................ 16
VISCOUS PAPER TYPE ..................................... 16
Changing Engine Oil .............................................. 17
Changing Oil Filter ................................................. 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 17INSPECTION AFTER INSTALLATION ................ 18
Changing Spark Plugs ............................................ 18
REMOVAL ........................................................... 19
INSPECTION AFTER REMOVAL ....................... 19
INSTALLATION ................................................... 20
Checking EVAP Vapor Lines .................................. 20
CHASSIS AND BODY MAINTENANCE ................... 21
Changing In-cabin Microfilter .................................. 21
Checking Exhaust System ...................................... 22
Checking A/T Fluid ................................................. 22
Changing A/T Fluid ................................................. 24
Changing Transfer Fluid ......................................... 24
DRAINING ........................................................... 24
FILLING ............................................................... 25
Checking Transfer Fluid ......................................... 25
FLUID LEAKAGE AND FLUID LEVEL ................ 25
Checking Propeller Shaft ........................................ 25
Checking Final Drive Oil ......................................... 25
Changing Final Drive Oil ......................................... 25
Balancing Wheels ................................................... 26
REMOVAL ........................................................... 26
WHEEL BALANCE ADJUSTMENT ..................... 26
Tire Rotation ........................................................... 28
Checking Brake Fluid Level and Leaks .................. 28
Checking Brake Lines and Cables ......................... 28
Checking Disc Brake .............................................. 28
ROTOR ................................................................ 28
CALIPER ............................................................. 29
PAD ..................................................................... 29
Checking Steering Gear and Linkage ..................... 29
STEERING GEAR ............................................... 29
STEERING LINKAGE ......................................... 29
Checking Power Steering Fluid and Lines .............. 29
CHECKING FLUID LEVEL .................................. 29
CHECKING LINES .............................................. 30
Checking Axle and Suspension Parts .................... 30
FRONT AND REAR AXLE AND SUSPENSION
PARTS ................................................................. 30
DRIVE SHAFT ..................................................... 30