INFINITI QX56 2008 Factory Service Manual

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SQUEAK AND RATTLE TROUBLE DIAGNOSES
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area c an often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sun visor shaft shaking in the holder
3. Front or rear windshield touching headliner and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
OVERHEAD CONSOLE (FRONT AND REAR)
Overhead console noises are often caused by the c onsole panel clips not being engaged correctly. Most of
these incidents are repaired by pushing up on the c onsole at the clip locations until the clips engage.
In addition look for:
1. Loose harness or harness connectors.
2. Front console map/reading lamp lens loose.
3. Loose screws at console attachment points.
SEATS
When isolating seat noise it's important to note the pos ition the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of thes e incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component installed to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator installation pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the \
vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
Revision: March 2010 2008 QX56

SQUEAK AND RATTLE TROUBLE DIAGNOSESEXT-9
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Diagnostic WorksheetINFOID:0000000001609850
LAIA0072E
Revision: March 2010 2008 QX56

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SQUEAK AND RATTLE TROUBLE DIAGNOSES
LAIA0071E
Revision: March 20102008 QX56

CLIP AND FASTENEREXT-11
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CLIP AND FASTENER
DescriptionINFOID:0000000001609847
• Replace any clips and/or fasteners which are damaged during removal or installation.
Symbol No. Shapes
Removal & Installation
C101
C103
C203
CE103
CG104 CE114 —
SBF302HSBF367BA
SBT095SBF423H
SBF258GLIIA0236E
SBF104BSBF147B
LIIA0237ESBF352C
SBF353C
Revision: March 2010 2008 QX56

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CLIP AND FASTENER
CG101CR103CS101
CF118 C205
Symbol
No. Shapes
Removal & Installation
SBF145BSBF085B
SBF768BSBF770B
SBF078BSBF992G
LIIA1341ELIIA1342E
LIIA1344ELIIA1345E
Revision: March 2010 2008 QX56

FRONT BUMPEREXT-13
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FRONT BUMPER
Removal and InstallationINFOID:0000000001609851
1. Lower energy absorber 2. Front bumper side bracket RH 3. Front bumper stay RH
4. Upper bumper reinforcement 5. Upper energy absorber (part of up- per bumper reinforcement) 6. Sonar sensors (if equipped)
AWKIA1559ZZ
Revision: March 2010
2008 QX56

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< SERVICE INFORMATION >
FRONT BUMPER
REMOVAL
1. Remove the side screws from the front fascia assembly.
2. Remove the screws from the front of fender protector. Refer to EXT-23
.
3. Remove the fog turn/fog lamp finisher and the fog turn/fog lamp. • Disconnect the harnesses.
4. Disconnect the sonar sensor, if equipped harness connector under the front fascia assembly.
5. Remove the fasteners, release the clips and remove the front fascia assembly.
6. Remove the plastic clips and remove the upper energy absorber.
7. Remove the upper bumper reinforcement.
8. Remove the plastic clips and remove the lower energy absorber.
9. Remove the front bumper stays and the front bumper side brackets, LH and RH.
10. Disconnect the sonar sensors, if equipped from the sonar sensor retainers, if equipped.
11. Remove the sonar sensors, if equipped and harness from the front fascia assembly. • Disconnect the sonar sensors, if equipped from the harness.
• Remove the sonar sensor retainers, if equipped from the front fascia assembly.
INSTALLATION
Installation is in the reverse order of removal.
7. Sonar sensor harness (if equipped) 8. Front fascia assembly 9. Sonar sensor retainers (if equipped)
10. Engine under cover 11. Front fascia bracket12. License plate bracket
13. Fog turn/fog lamp finisher LH/RH 14. Fog turn/fog lamp 15. Front bumper stay LH
16. Front bumper side bracket LH 17. Headlamp finisher (RH shown) A. Clip C103
B. Clip CS101
Revision: March 2010 2008 QX56

REAR BUMPEREXT-15
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REAR BUMPER
Removal and InstallationINFOID:0000000001609852
1. Retainer assembly 2. Clip C1033. S clip
4. Energy absorber 5. Sonar sensors6. Sonar sensor harness
7. Quarter panel trim cover LH 8. Drafter duct 9. Retainer clip
AWKIA1532GB
Revision: March 2010 2008 QX56

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REAR BUMPER
REMOVAL
1. Disconnect the negative battery terminals.
2. Remove the rear combination lamps LH and RH. Refer to EXL-124, "
Removal and Installation".
3. Remove the rear fascia assembly screws under the rear combination lamps LH and RH.
4. Remove the quarter panel trim covers LH and RH.
5. Disconnect the sonar sensor harness c onnector under the rear fascia assembly.
6. Release the retainer clips on both sides of the rear fascia assembly with a 1/4 turn and top S clips and remove the fascia assembly.
7. Detach the I-key antenna from the energy absorber.
8. Remove the energy absorber.
9. Remove the reinforcement assembly.
10. Remove the nuts and remove the retainer assembly. • Remove the S clips from the retainer assembly.
11. Disconnect the sonar sensors from the sonar sensor retainers.
12. Remove the sonar sensors and harness from the rear fascia assembly. • Disconnect the sonar sensors from the harness.
• Remove the sonar sensor retainers from the rear fascia assembly.
13. Remove the bolts on each side of the tow hitch and remove the tow hitch.
14. Remove the drafter duct from under the LH quarter panel.
INSTALLATION
Installation is in the reverse order of removal.
10. Rear fascia assembly 11. Sonar sensor retainer12. Reinforcement assembly
13. Tow hitch 14. Quarter panel trim cover RH
Revision: March 2010 2008 QX56

FRONT GRILLEEXT-17
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FRONT GRILLE
Removal and InstallationINFOID:0000000001609853
REMOVAL
1. Remove the bolts and nuts attaching grille.
2. Remove the front grille.
INSTALLATION
Installation is in the reverse order of removal.
1. Front grille 2. J-Clip
AWKIA0022ZZ
Revision: March 2010 2008 QX56