2009 INFINITI QX56 Factory Service Manual

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Page 1849 of 4171

INFINITI QX56 2009 Factory Service Manual EM-26
< ON-VEHICLE REPAIR >
INTAKE MANIFOLD
INTAKE MANIFOLD
Exploded ViewINFOID:0000000005885874
Removal and InstallationINFOID:0000000005885875
REMOVAL
1. Partially drain the engine coolant. Refer to

Page 1850 of 4171

INFINITI QX56 2009 Factory Service Manual INTAKE MANIFOLDEM-27
< ON-VEHICLE REPAIR >
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a. Remove quick connector cap (engine side only).
b. With the sleeve side of Tool facing quick connector, install Tool
onto fu

Page 1851 of 4171

INFINITI QX56 2009 Factory Service Manual EM-28
< ON-VEHICLE REPAIR >
INTAKE MANIFOLD
• Tighten the intake manifold bolts in numerical order as shown.
• Install the EVAP canister purge control solenoid valve connector with it facing front

EM-28
< ON-VEHICLE REPAIR >
INTAKE MANIFOLD
• 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 diago-
nally in several steps.
• After installation perform procedure in "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 t he 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 tubeinto 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 pe rform 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
Revision: December 20092009 QX56

Page 1852 of 4171

INFINITI QX56 2009 Factory Service Manual INTAKE MANIFOLDEM-29
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5. Install the quick connector cap on the quick connector joint (on
engine side only).
6. Install the fuel hose and tube to ho

Page 1853 of 4171

INFINITI QX56 2009 Factory Service Manual EM-30
< ON-VEHICLE REPAIR >
EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
Exploded ViewINFOID:0000000005885876
Removal and InstallationINFOID:0000000005885877
REMOVAL

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INFINITI QX56 2009 Factory Service Manual EXHAUST MANIFOLD AND THREE WAY CATALYST
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b. Remove the air fuel ratio A/F sensors from both LH and RH
exhaust manifolds using Tool.
CAUTION:

Page 1855 of 4171

INFINITI QX56 2009 Factory Service Manual EM-32
< ON-VEHICLE REPAIR >
EXHAUST MANIFOLD AND THREE WAY CATALYST
• Install new exhaust manifold gasket with the top of the triangularup mark on it facing up and its coated face (gray side) toward

Page 1856 of 4171

INFINITI QX56 2009 Factory Service Manual OIL PAN AND OIL STRAINEREM-33
< ON-VEHICLE REPAIR >
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OIL PAN AND OIL STRAINER
Exploded ViewINFOID:0000000005885878
Removal and InstallationINFOID:0000000005885879
REMOVAL

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