ABS INFINITI QX56 2004 Factory Service Manual

FL-8Revision: August 2007
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
2004 QX56
11. Remove the lock ring using Tool.
12. Remove the fuel level sensor, fuel filter, and fuel pump assem-
bly.
CAUTION:

Do not bend the float arm during removal.

Avoid impacts such as dropping when handling the com-
ponents.
INSTALLATION
Installation is in the reverse order of removal.

Connect the quick connector as follows:
–Check the connection for any damage or foreign materials.
–Align the connector with the pipe, then insert the connector straight into the pipe until a click is heard.
–After connecting the quick connector, make sure that the con-
nection is secure by checking as follows:
–Pull the tube and the connector to make sure they are securely
connected.
–Visually inspect the connector to make sure the two retainer tabs
are securely connected.
INSPECTION AFTER INSTALLATION
1. Turn the ignition switch ON but do not start engine, then check the fuel pipes and hose connections for
leaks while applying fuel pressure to the system.
2. Start the engine and rev it above idle speed, then check that there are no fuel leaks at any of the fuel pipe
and hose connections.Tool number : — (J-46536)
LBIA0389E
PBIC1653E

FUEL TANK
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Revision: August 20072004 QX56
13. Remove the inspection hole cover by turning the retainers 90°
degrees clockwise.

Remove the O-ring.
14. Disconnect the fuel level sensor, fuel filter, and fuel pump
assembly electrical connector, the EVAP hose, and the fuel feed
hose.
Disconnect the quick connector as follows:

Hold the sides of the connector, push in tabs and pull out the
tube.

If the connector and the tube are stuck together, push and pull
several times until they start to move. Then disconnect them
by pulling.
LBIA0382E
LBIA0383E
SF E5 62 A

FL-12Revision: August 2007
FUEL TANK
2004 QX56
CAUTION:

The quick connector can be disconnected when the tabs
are completely depressed. Do not twist the quick connec-
tor more than necessary.

Do not use any tools to disconnect the quick connector.

Keep the resin tube away from heat. Be especially careful
when welding near the tube.

Prevent any acid liquids such as battery electrolyte, from
getting on the resin tube.

Do not bend or twist the resin tube during connection.

Do not remove the remaining retainer on the hard tube (or
the equivalent) except when the resin tube or the retainer
is replaced.

When the resin tube or hard tube, or the equivalent, is
replaced, also replace the retainer with a new one (white
colored retainer).

To keep the quick connector clean and to avoid damage
and contamination from foreign materials, cover the
quick connector with plastic bags or suitable material as
shown.
15. Remove the four bolts and remove the fuel tank shield.
16. Remove the propeller shaft. Refer to PR-8, "
REAR PROPELLER SHAFT" .
17. Remove the three clips and remove the fuel tank protector at the
front of the fuel tank as necessary to transfer to the new fuel
tank.
18. Disconnect fuel filler hose, and vent hose at the fuel tank side.
PBIC1268E
PBIC0163E
LBIA0388E

FUEL TANK
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Revision: August 20072004 QX56
19. Remove the fuel tank strap bolts while supporting the fuel tank
with a suitable lift jack.
20. Disconnect the EVAP hose from the molded clip in the top of the fuel tank while lowering the fuel tank.
21. Lower the fuel tank using a suitable lift jack and remove it.
22. If necessary, remove the lock ring using Tool.
23. If necessary, remove the fuel level sensor, fuel filter, and fuel
pump assembly.
CAUTION:

Do not bend the float arm during removal.

Avoid impacts such as dropping when handling the com-
ponents.
INSTALLATION
Installation is in the reverse order of removal.

Connect the quick connector as follows:
–Check the connection for any damage or foreign materials.
–Align the connector with the pipe, then insert the connector straight into the pipe until a click is heard.
–After connecting the quick connector, make sure that the con-
nection is secure by checking as follows:
–Pull the tube and the connector to make sure they are securely
connected.
–Visually inspect the connector to make sure the two retainer tabs
are securely connected.
INSPECTION AFTER INSTALLATION
1. Turn the ignition switch ON but do not start engine, then check the fuel pipe and hose connections for
leaks while applying fuel pressure.
2. Start the engine and rev it above idle, then check that there are no fuel leaks at any of the fuel pipe and
hose connections.
LBIA0387E
Tool number : — (J-46536)
LBIA0389E
PBIC1653E

FSU-1
FRONT SUSPENSION
E SUSPENSION
CONTENTS
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SECTION FSU
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B
FSU
Revision: August 20072004 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 .................................................................. 8
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 ............... 10
ASSEMBLY ..........................................................11STABILIZER BAR ..................................................... 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSPECTION AFTER REMOVAL ....................... 12
INSTALLATION ................................................... 12
UPPER 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 ................................................... 19
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 20
General Specifications (Front) ................................ 20
Wheel Alignment (Unladen*
1 ) ................................ 20
Ball Joint ................................................................. 21
Wheelarch Height (Unladen*
1 ) .............................. 21

FSU-4
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: August 20072004 QX56
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEES0010G
Use the chart below to help you find the cause of the symptom. Repair or replace parts as necessary.
x: ApplicableReference page
FSU-5FSU-10FSU-5FSU-5FSU-21FSU-6FSU-6FSU-6
PR-3, "
NVH Troubleshooting Chart
"
FFD-7, "
NVH Troubleshooting Chart
"
FAX -4, "
NVH Troubleshooting Chart
"
WT-3, "
NVH Troubleshooting Chart
"
WT-3, "
NVH Troubleshooting Chart
"
BR-5, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
"
Possible Cause and
SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation,
damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
AXLE
TIRES
ROAD WHEEL
BRAKES
STEERING
SymptomNoise× × ×××× × × × × × ××
Shake×××× × × ×××××
Vib ratio n××××× × ×× ×
Shimmy× × ×× × × × × ××
Shudder××× ×××××
Poor quality ride or handling××××× ×× ×××

FRONT SUSPENSION ASSEMBLY
FSU-5
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FSU
Revision: August 20072004 QX56
FRONT SUSPENSION ASSEMBLYPFP:54010
ComponentsEES0010H
1. Washer 2. Spacer 3. Shock absorber mounting insulator
4. Shock absorber bushing 5. Upper seat 6. Coil spring
7. Dust cover 8. Shock absorber 9. Upper link
10. Steering knuckle 11. Cotter pin 12. Drive shaft
13. Lower link 14. Bolt 15. Jounce bumper
16. Cam washer 17. Stabilizer bar 18. Stabilizer bar bushing
19. Stabilizer bar mounting bracket 20. Connecting rod
WEIA0083E

FSU-6
ON-VEHICLE SERVICE
Revision: August 20072004 QX56
ON-VEHICLE SERVICEPFP:00000
Front Suspension PartsEES0010I
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 FSU-15, "
Inspection" .

Make sure that the cotter pin is inserted (4WD 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 AlignmentEES0010J
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 rear 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-4, "
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 )" .

For air leveling vehicles, 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-10
COIL SPRING AND SHOCK ABSORBER
Revision: August 20072004 QX56
COIL SPRING AND SHOCK ABSORBERPFP:56210
Removal and InstallationEES0010K
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the shock absorber lower bolt using power tool.
3. Remove the three shock absorber upper mounting nuts using
power tool.
4. Remove the coil spring and shock absorber assembly.

Turn steering knuckle out to gain enough clearance for
removal.
INSTALLATION
Installation is in the reverse order of removal.

The step in the shock absorber assembly lower seat faces outside of vehicle.

Tighten all nuts and bolts to specification. Refer to FSU-5, "Components" .

When installing wheel and tire, refer to WT-6, "Rotation" .
Disassembly and AssemblyEES0010L
DISASSEMBLY
1. Set the shock absorber in a vise, then loosen (without removing)
the piston rod lock nut as shown.
CAUTION:
Do not remove piston rod lock nut at this time.
2. Compress the spring using commercial service tool until the
shock absorber mounting insulator can be turned by hand.
WAR NIN G:
Make sure that the pawls of the two spring compressors are
firmly hooked on the spring. The spring compressors must
be tightened alternately and evenly so as not to tilt the
spring.
3. Remove the piston rod lock nut.

Discard the piston rod lock nut, use a new nut for assembly.
INSPECTION AFTER DISASSEMBLY
Shock Absorber Assembly

Check for smooth operation through a full stroke, both compression and extension.

Check for oil leakage on welded or gland packing portions.

Check piston rod for cracks, deformation or other damage and replace if necessary.
Mounting Insulator and Rubber Parts
Check cemented rubber-to-metal portion for separation or cracks. Check rubber parts for deterioration and
replace if necessary.
LEIA0093E
SSU0 02
SSU0 03

COIL SPRING AND SHOCK ABSORBER
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Revision: August 20072004 QX56
Coil Spring

Check for cracks, deformation or other damage and replace if necessary.

Check the free spring height.
ASSEMBLY
1. When installing coil spring on shock absorber, it must be posi-
tioned as shown.
2. Install upper mounting insulator as shown in line with lower
shock absorber mount and step in shock absorber lower seat.

The step in the shock absorber lower seat faces outside of
vehicle.
3. Tighten the piston rod lock nut to specification. Refer to FSU-5,
"Components" .

Use a new piston rod lock nut for assembly.Front spring free height
2WD : 325.5 ± 3 mm (12.8 ± 0.1 in)
4WD : 335.0 ± 3 mm (13.2 ± 0.1 in)
SFA508A
WEIA0093E