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EX-4Revision: November 2009
EXHAUST SYSTEM
2006 QX56
REMOVAL
Remove exhaust system components using power tool.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Always replace exhaust gaskets with new ones when reassembling.
Before installing a new heated oxygen sensor, clean and lube the exhaust tube threads using Tool.
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; replace with a new one.
Do not over-torque the heated oxygen sensor. Doing so may damage the heated oxygen sensor,
resulting in the MIL coming on.
If any mounting insulator is badly deformed, repair or replace it. If deposits such as mud pile up on
the mounting insulators, clean and inspect them.
Temporarily tighten the nuts on the exhaust manifold side and the bolts on the vehicle side. Check
each part for interference with other components, and then tighten the nuts and bolts to specifica-
tion.
INSPECTION AFTER INSTALLATION
With the engine running, check exhaust tube joints for gas leakage and unusual noises.
Check to ensure that mounting brackets and mounting rubbers are installed properly and free from undue
stress. Improper installation could result in excessive noise and vibration. Tool number
A : — (J-43897-18)
B : — (J-43897-12)
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FAX-6
WHEEL HUB
Revision: November 20092006 QX56
4. Put alignment mark on disc rotor and wheel hub and bearing
assembly, then remove disc rotor.
5. On 4WD model, remove cotter pin, then remove lock nut from drive shaft using power tool. Then remove end of drive shaft from wheel hub and bearing assembly. Refer to FA X - 7 , "
Removal and Installation" .
6. Remove wheel sensor. Refer to BRC-64, "
Removal and Installation" .
Inspect the wheel sensor O-ring, replace the wheel sensor assembly if damaged.
Clean the wheel sensor hole and mounting surface with a suitable brake cleaner and clean lint-free
shop rag. Be careful that dirt and debris do not enter the axle bearing area.
Apply a coat of suitable grease to the wheel sensor O-ring and mounting hole.
CAUTION:
Do not pull on the wheel sensor harness.
7. Remove wheel hub and bearing assembly bolts using power tool.
8. Remove splash guard and wheel hub and bearing assembly from steering knuckle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each part, replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.
Use new bolts when installing the wheel hub and bearing assembly.
When installing disc rotor on wheel hub and bearing assembly,
position the disc rotor according to alignment mark.
(When not using the alignment mark, refer to BR-25, "
DISC
ROTOR INSPECTION" .)
When installing wheel and tire. Refer to WT-7, "Rotation" .
WDIA0044E
WDIA0044E
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DRIVE SHAFTFAX-7
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FA X
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DRIVE SHAFTPFP:39100
Removal and InstallationEDS003BP
REMOVAL
1. Remove wheel and tire using power tool.
2. Remove engine under cover using power tool.
3. Remove wheel sensor harness from mount on knuckle.
CAUTION:
Do not pull on wheel sensor harness.
4. Without disassembling the hydraulic lines, remove brake caliper using power tool. Reposition it aside with wire. Refer to BR-22, "
Removal and Installation of Brake Caliper and Disc Rotor" .
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
5. Remove coil spring and shock absorber assembly using power tool. Refer to FSU-10, "
Removal and
Installation" .
6. Separate upper link ball joint stud from steering knuckle using To o l .
Support lower link with jack.
7. Remove cotter pin, then remove drive shaft nut.
8. Remove drive shaft mounting bolts from front final drive.
9. Remove drive shaft from wheel hub and bearing assembly. CAUTION:
When removing drive shaft, do not apply an excessive
angle to drive shaft joint. Also be careful not to exces-
sively extend slide joint.
INSPECTION AFTER REMOVAL
Move joint up, down, left, right, and in axial direction. Check for any rough movement or significant loose-
ness.
Check boot for cracks or other damage, and for grease leakage.
If damaged, disassemble drive shaft to verify damage, and
repair or replace as necessary.
1. Cotter pin 2. Drive shaft nut3. Drive shaft
WDIA0329E
Tool number : ST29020001 (J-24319-01)
LEIA0095E
RAA0030D
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FL-1
FUEL SYSTEM
B ENGINE
CONTENTS
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SECTION
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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
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FL-6Revision: November 2009
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
2006 QX56
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLYPFP:17042
Removal and InstallationEBS00M3S
REMOVAL
WARNING:
Follow the “General Precautions” before working on the fuel system. Refer to FL-4, "
General Precau-
tions" .
1. Remove the fuel filler cap to release the pressure from inside the fuel tank.
2. Check the fuel level on level gauge. If the fuel gauge indicates more than the level as shown (full or almost full), drain the fuel
from the fuel tank until the fuel gauge indicates the level as
shown, or less.
If the fuel pump does not operate, use the following procedure
to drain the fuel to the specified level.
a. Insert a suitable hose of less than 15 mm (0.59 in) diameter into the fuel filler pipe through the fuel filler opening to drain the fuel
from fuel filler pipe.
b. Remove the LH rear wheel and tire. Refer to WT-7, "
Rotation" .
c. Remove the four clips and remove the rear fender protector, front.
1. Inspection hole cover 2. Inspection hole cover O-ring 3. Lock ring
4. Fuel level sensor, fuel filter, and fuel pump assembly 5. Fuel tank
6. Fuel level sensor, fuel filter, and fuel
pump assembly O-ring
LBIA0381E
WBIA0390E
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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLYFL-7
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d. Disconnect the fuel filler hose from the fuel filler pipe.
e. Insert a suitable hose into the fuel tank through the fuel filler hose to drain the fuel from the fuel tank.
As a guide, the fuel level reaches the fuel gauge position as shown, or less, when approximately 14
liters (3 3/4 US gal, 3 1/8 Imp gal) of fuel are drained from the fuel tank.
3. Release the fuel pressure from the fuel lines. Refer to EC-80, "
FUEL PRESSURE RELEASE" .
4. Disconnect the battery negative terminal.
5. Remove the second row LH seat and the third row LH seat. Refer to SE-98, "
Second Row Outboard"
(second row), SE-105, "LH Side Seat" (third row).
6. Remove the second and third row rear seat belt buckles mounted on the floor. Refer to SB-3, "
SEAT
BELTS" .
7. Remove the LH center pillar trim, the LH rear trim panel, and the LH rear side door kick plate and weather stripping. Refer to EI-35, "
BODY SIDE TRIM" .
8. Remove the second row rear center console and base, if equipped. Refer to EI-37, "
FLOOR TRIM" .
9. Reposition the floor carpet out of the way to access the inspection hole cover, located under the center LH rear seat.
10. Remove the inspection hole cover by turning the retainers 90 °
degrees clockwise.
Remove the O-ring.
11. Disconnect the fuel level sensor, fuel filter, and fuel pump assembly electrical connector, the EVAP hose, and the fuel feed
hose.
LBIA0386E
LBIA0382E
LBIA0383E
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FL-8Revision: November 2009
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
2006 QX56
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.
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.
SFE562A
PBIC1268E
PBIC0163E
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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLYFL-9
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Revision: November 2009 2006 QX56
12. Remove the lock ring using Tool.
13. Remove the fuel level sensor, fuel filter, and fuel pump assem-
bly. Remove and discard the fuel level sensor, fuel filter, and fuel
pump assembly O-ring.
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.
For installation, use a new fuel level sensor, fuel filter, and fuel pump assembly O-ring.
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 forleaks 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