2005 INFINITI QX4 Factory Service Manual

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Page 1913 of 3419

INFINITI QX4 2005 Factory Service Manual EM-10Revision: October 2005
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
2005 QX56
Use the Chart Below to Help You Find the Cause of the Symptom.EBS00LLU
1. Locate the area where noise occurs

Page 1914 of 3419

INFINITI QX4 2005 Factory Service Manual ENGINE ROOM COVER
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Revision: October 20052005 QX56
ENGINE ROOM COVERPFP:14049
Removal and InstallationEBS00LLV
REMOVAL
Remove the engine cover bolts and cover.
CAUTION:

Page 1915 of 3419

INFINITI QX4 2005 Factory Service Manual EM-12Revision: October 2005
DRIVE BELTS
2005 QX56
DRIVE BELTSPFP:02117
Checking Drive BeltsEBS00LLW
WAR NIN G:
Be sure to perform when the engine is stopped.
1. Remove the air duct and resonator assem

Page 1916 of 3419

INFINITI QX4 2005 Factory Service Manual DRIVE BELTS
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Revision: October 20052005 QX56
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Make sure belt is securely installed around all pulle

Page 1917 of 3419

INFINITI QX4 2005 Factory Service Manual EM-14Revision: October 2005
AIR CLEANER AND AIR DUCT
2005 QX56
AIR CLEANER AND AIR DUCTPFP:16500
Removal and InstallationEBS00LM0
REMOVAL
1. Remove the engine room cover using power tool. Refer to EM-

Page 1918 of 3419

INFINITI QX4 2005 Factory Service Manual INTAKE MANIFOLD
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Revision: October 20052005 QX56
INTAKE MANIFOLDPFP:14003
Removal and InstallationEBS00LM1
REMOVAL
1. Partially drain the engine coolant. Refer to MA-13,

Page 1919 of 3419

INFINITI QX4 2005 Factory Service Manual EM-16Revision: October 2005
INTAKE MANIFOLD
2005 QX56
Perform the following steps to disconnect the quick connector
using Tool.
a. Remove quick connector cap (engine side only).
b. With the sleeve s

Page 1920 of 3419

INFINITI QX4 2005 Factory Service Manual INTAKE MANIFOLD
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INSTALLATION
Installation is in the reverse order of removal.
Tighten the intake manifold bolts in numerical order as s

INTAKE MANIFOLD
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INSTALLATION
Installation is in the reverse order of removal.
Tighten the intake manifold bolts in numerical order as shown.
Install the EVAP canister purge control solenoid valve connector with it facing front of engine.
Tighten the electronic throttle control actuator bolts of the electric throttle control actuator equally and
diagonally in several steps.
After installation perform procedure in EM-18, "INSPECTION AFTER INSTALLATION" .
Install the water hose so that its overlap width for connection is between 27 mm (1.06 in) and 32 mm (1.26
in) (target: 27 mm 1.06 in).
Connecting Quick Connector of Fuel Tube
Install quick connector as follows (the steps are the same for quick connectors on both engine side and vehi-
cle side except for the quick connector cap).
1. Make sure no foreign substances are deposited in and around tube and quick connector, and they are not
damaged.
2. Thinly apply new engine oil around the fuel tube from tip end to the spool end.
3. Align center to insert quick connector straight into fuel tube.
Insert until the paint mark for engagement identification
(white) goes completely inside quick connector so that you
cannot see it from the straight side of the connected part. Use
a mirror to check this where it is not possible to view directly
from the straight side, such as quick connector on vehicle
side.
Insert fuel tube into quick connector until top spool is com-
pletely inside quick connector, and 2nd level spool exposes
right below quick connector on engine side.
CAUTION:
Hold "A" position in illustration when inserting fuel
tube into quick connector.
Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.
Insert until you hear a “click” sound and actually feel
the engagement.
To avoid misidentification of engagement with a similar
sound, be sure to perform the next step.
4. Pull quick connector by hand holding "A" position. Make sure it is completely engaged (connected) so that
it does not come out from fuel tube.
NOTE:
Recommended pulling force is 50 N (5.1 kg, 11.2 lb).
KBIA2462E
PBIC0017E
KBIA0272E

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