Page 1993 of 3371
EM-110Revision: August 2007
SERVICE DATA AND SPECIFICATIONS (SDS)
2004 QX56
Page 1994 of 3371
EX-1
EXHAUST SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION EX
A
EX
Revision: August 20072004 QX56 PREPARATION ........................................................... 2
Special Service Tool ................................................. 2
Commercial Service Tools ........................................ 2
EXHAUST SYSTEM ................................................... 3Checking Exhaust System ........................................ 3
Removal and Installation .......................................... 3
REMOVAL ............................................................. 4
INSTALLATION ..................................................... 4
INSPECTION AFTER INSTALLATION .................. 4
Page 1995 of 3371

EX-2Revision: August 2007
PREPARATION
2004 QX56
PREPARATIONPFP:00002
Special Service ToolEBS00IKS
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsEBS00IKT
Tool number
(Kent-Moore No.)
Tool nameDescription
KV10114400
(J-38365)
Heated oxygen sensor wrenchLoosening or tightening heated oxygen sen-
sors:
a: 22 mm (0.87 in)
S-NT636
(Kent-Moore No.)
Tool nameDescription
a: (J-43897-18)
b: (J-43897-12)
Oxygen sensor thread cleanerReconditioning the exhaust system threads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below):
a: J-43897-18 (18 mm, 0.71 in) dia. for zirco-
nia oxygen sensor
b: J-43897-12 (12 mm, 0.47 in) dia. for tita-
nia oxygen sensor
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907)Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
Power toolLoosening nuts and bolts
AEM488
AEM489
PBIC0190E
Page 1996 of 3371
EXHAUST SYSTEM
EX-3
C
D
E
F
G
H
I
J
K
L
MA
EX
Revision: August 20072004 QX56
EXHAUST SYSTEMPFP:20100
Checking Exhaust SystemEBS00IKU
Check exhaust pipes, muffler and mounting for improper attachment, leaks, cracks, damage or deterioration.
If anything is found, repair or replace damaged parts.
Removal and InstallationEBS00IKV
Exhaust System
CAUTION:
Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat
resistance, corrosion resistance, and shape.
Perform the operation with the exhaust system fully cooled. The system will be hot just after the
engine stops.
Be careful not to cut your hand on the heat insulator edge.
SM A211 A
WBIA0416E
1. Tailpipe hanger bracket 2. Tailpipe 3. Gasket
4. Main muffler 5. Right front exhaust tube 6. Ring gasket
7. Heated oxygen sensor 2 (bank 2) 8. Heated oxygen sensor 2 (bank 1) 9. Left front exhaust tube
10. Center exhaust tube 11. Muffler hanger bracket front 12. Muffler hanger bracket rear
Page 1997 of 3371

EX-4Revision: August 2007
EXHAUST SYSTEM
2004 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; install 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 mounting nuts on the exhaust manifold side and the mounting bolts on the
vehicle side. Check each part for interference with other components, and then tighten the nuts
and bolts to specification.
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)
Page 1998 of 3371

FAX-1
FRONT AXLE
D DRIVELINE/AXLE
CONTENTS
C
E
F
G
H
I
J
K
L
M
SECTION FA X
A
B
FA X
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
WHEEL HUB .............................................................. 5
On-Vehicle Inspection and Service .......................... 5
WHEEL BEARING INSPECTION ......................... 5
Removal and Installation .......................................... 5
REMOVAL ............................................................. 5
INSPECTION AFTER REMOVAL ......................... 6
INSTALLATION ..................................................... 6DRIVE SHAFT ............................................................. 7
Removal and Installation .......................................... 7
REMOVAL ............................................................. 7
INSPECTION AFTER REMOVAL ......................... 7
INSTALLATION ..................................................... 8
Disassembly and Assembly ...................................... 8
DISASSEMBLY ..................................................... 8
INSPECTION AFTER DISASSEMBLY .................. 9
ASSEMBLY ......................................................... 10
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 13
Wheel Bearing ........................................................ 13
Drive Shaft .............................................................. 13
Page 1999 of 3371
FAX-2
PRECAUTIONS
Revision: August 20072004 QX56
PRECAUTIONSPFP:00001
PrecautionsEDS001AG
Observe the following precautions when disassembling and servicing the wheel hub and drive shafts.
Perform work in a location which is as dust-free as possible.
Before disassembling and servicing, clean the outside of parts.
Prevention of the entry of foreign objects must be taken into account during disassembly of the compo-
nent parts.
Disassembled parts must be carefully reassembled in the correct order. If work is interrupted, a clean
cover must be placed over parts.
Paper shop cloths must be used. Fabric shop cloths must not be used because of the danger of lint adher-
ing to parts.
Disassembled parts (except for rubber parts) should be cleaned with a suitable solvent which shall be
removed by blowing with air or wiping with paper shop cloths.
Page 2000 of 3371
PREPARATION
FAX-3
C
E
F
G
H
I
J
K
L
MA
B
FA X
Revision: August 20072004 QX56
PREPARATIONPFP:00002
Special Service ToolsEDS001B3
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools EDS001B4
Tool number
(Kent-Moore No.)
Tool nameDescription
ST29020001
(J-24319-01)
Gear arm pullerRemoving ball joint for steering knuckle
a: 34 mm (1.34 in)
b: 6.5 mm (0.256 in)
c: 61.5 mm (2.421 in)
NT694
Tool nameDescription
Power toolsRemoving bolts and nuts
PBIC0190E