2011 INFINITI QX56 Factory Service Manual

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Page 2601 of 5598

INFINITI QX56 2011 Factory Service Manual
VVEL ACTUATOR ASSEMBLYEM-39
< REMOVAL AND INSTALLATION >
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InspectionINFOID:0000000006289549
INSPECTION AFTER REMOVAL
VVEL actuator housing assembly
Move the ball nut (

Page 2602 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-40
< REMOVAL AND INSTALLATION >
EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
Exploded ViewINFOID:0000000006289550
Removal and InstallationINFOID:0000000006289551

Page 2603 of 5598

INFINITI QX56 2011 Factory Service Manual
EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-41
< REMOVAL AND INSTALLATION >
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11. Remove front propeller shaft. Refer to
DLN-128, "Exploded View".
12. Disconnect steerin

Page 2604 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-42
< REMOVAL AND INSTALLATION >
EXHAUST MANIFOLD AND THREE WAY CATALYST
Tighten mounting nuts in numerical order as shown in the figure.CAUTION:
All exhaust manifold nuts are tightened at twice

Page 2605 of 5598

INFINITI QX56 2011 Factory Service Manual
HIGH PRESSURE FUEL PUMP AND FUEL HOSEEM-43
< REMOVAL AND INSTALLATION >
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HIGH PRESSURE FUEL
PUMP AND FUEL HOSE
Exploded ViewINFOID:0000000006289553
CAUTION:
Never remov

Page 2606 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-44
< REMOVAL AND INSTALLATION >
HIGH PRESSURE FUEL PUMP AND FUEL HOSE
4. Remove fuel feed tube (pump side) (1).
5. Disconnect fuel hose (2) from high pressure fuel pump.
6. Remove high pressure fu

Page 2607 of 5598

INFINITI QX56 2011 Factory Service Manual
HIGH PRESSURE FUEL PUMP AND FUEL HOSEEM-45
< REMOVAL AND INSTALLATION >
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To keep clean the connecting portion and to avoid dam-
age and foreign materials, cover them c

Page 2608 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-46
< REMOVAL AND INSTALLATION >
HIGH PRESSURE FUEL PUMP AND FUEL HOSE
Check that rotation stopper (A) of fuel feed hose contact highpressure fuel pump.
6. Tighten mounting bolts that are tempora

EM-46
< REMOVAL AND INSTALLATION >
HIGH PRESSURE FUEL PUMP AND FUEL HOSE
Check that rotation stopper (A) of fuel feed hose contact highpressure fuel pump.
6. Tighten mounting bolts that are temporarily tightened in step 3.
7. Connect harness connector to high pressure fuel pump.
8. Install fuel pump connector protector.
9. Connect harness connector to low fuel pressure sensor.
10. Note the following, and connect quick connector to install fuel feed hose.
a. Check the connection for foreign material and damage.
b. Align center to insert quick connector straightly into fuel tube. NOTE:
The figure shows engine side as an example.
Insert fuel tube into quick connector until the top spool on fueltube is inserted completely and the second level spool is posi-
tioned slightly below quick connector bottom end.
CAUTION:
Hold “A” position in the figure 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 “c lick” sound and actually feel
the engagement.
To avoid misidentification of engagement with a similar sound , be sure to perform the next
step.
c. Before clamping fuel feed hose with hose clamps, pull quick connector hard by hand holding “A” position.
Check it is completely engaged (connected) so that it does not come out from fuel feed tube.
d. Install quick connector cap to quick connector connection. Install so that the arrow mark on the side faces up.
CAUTION:
Check that quick connector and fuel tube are securely fitinto quick connector cap installation groove.
If quick connector cap canno t be installed smoothly,
quick connector may have not been installed correctly.
Check connection again.
11. Install in the reverse order of removal.
InspectionINFOID:0000000006289555
INSPECTION AFTER INSTALLATION
Check for Fuel Leakage
1. Turn ignition switch “ON” (with the engine stopped). With fuel pressure applied to fuel piping, check that
there is no fuel leakage at connection points.
NOTE:
Use mirrors for checking at points out of clear sight.
2. Start the engine. With engine speed increased, check again that there is no fuel leakage at connection
points.
JSBIA0364ZZ
KBIA0272E
PBIC2348E
Revision: 2010 May2011 QX56

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