Nissan Pathfinder (2011 year). Instruction — part 382
INTAKE MANIFOLD
EM-167
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[VK56DE]
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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 fuel tube.
c. Insert Tool into quick connector until sleeve contacts and goes
no further. Hold the Tool in that position.
CAUTION:
Inserting the Tool hard will not disconnect quick connector.
Hold Tool where it contacts and goes no further.
d. Draw and pull out quick connector straight from fuel tube.
CAUTION:
• Pull quick connector holding (A) position in illustration.
• Do not pull with lateral force applied. O-ring inside quick connector may be damaged.
• Prepare container and cloth beforehand as fuel will leak out.
• Avoid fire and sparks.
• Be sure to cover openings of disconnected pipes with plug or plastic bag to avoid fuel leakage
and entry of foreign materials.
6. Remove or disconnect harnesses, brake booster vacuum hose and PCV hoses and tube from intake man-
ifold.
7. Remove the EVAP canister purge control solenoid valve, if necessary.
8. Remove electric throttle control actuator by loosening bolts diag-
onally as shown.
CAUTION:
• Handle carefully to avoid any damage to the electric throt-
tle control actuator.
• Do not disassemble.
9. Remove the fuel injectors and fuel tube assembly. Refer to
181, "Removal and Installation"
10. Loosen the bolts in reverse order shown using power tool.
11. Remove the intake manifold.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
• Clean all gasket mating surfaces, do not reuse gaskets.
INSTALLATION
Installation is in the reverse order of removal.
SBIA0354E
Tool number
: 16441 6N210 (J-45488)
WBIA0604E
PBIC2875E
KBIA2462E
2011 Pathfinder
EM-168
< REMOVAL AND INSTALLATION >
[VK56DE]
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 electric throttle control actuator bolts of the electric
throttle control actuator equally and diagonally in several steps as
shown.
• After installation perform 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
PBIC2875E
PBIC0017E
KBIA0272E
2011 Pathfinder
INTAKE MANIFOLD
EM-169
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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 hose clamps.
7. Refill the engine coolant. Refer to
INSPECTION AFTER INSTALLATION
• After installing fuel tubes, make sure there is no fuel leakage at connections in the following steps.
- Apply fuel pressure to fuel lines by turning ignition switch ON (with engine stopped). Then check for fuel
leaks at connections.
- Start the engine and rev it up and check for fuel leaks at the connections.
• Perform procedures for “Throttle Valve Closed Position Learning” after finishing repairs. Refer to
"Throttle Valve Closed Position Learning"
• If electric throttle control actuator is replaced, perform procedures for “Idle Air Volume Learning” after finish-
ing repairs. Refer to
EC-593, "Idle Air Volume Learning"
.
SBIA0354E
2011 Pathfinder
EM-170
< REMOVAL AND INSTALLATION >
[VK56DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
Exploded View
INFOID:0000000006247075
Removal and Installation
INFOID:0000000006247076
REMOVAL
WARNING:
Perform the work when the exhaust and cooling system have cooled sufficiently.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
1. Remove the front engine under covers and rear under covers. Refer to
EXT-15, "Removal and Installa-
2. Remove front final drive assembly. Refer to
DLN-390, "Removal and Installation"
3. Remove the main muffler assembly and center exhaust tube. Refer to
EX-7, "Removal and Installation"
.
4. Remove the front exhaust tubes. Refer to
EX-7, "Removal and Installation"
5. Remove front tires. Refer to
6. Remove fender covers and protectors. Refer to
EXT-25, "Removal and Installation of Front Fender Pro-
7. Remove the LH and RH air fuel ratio A/F sensors.
• Follow steps below to remove each air fuel ratio A/F sensor.
a. Remove the harness connector of each air fuel ratio A/F sensor, and harness from bracket and middle
clamp.
1. Air fuel ratio A/F sensor 1 (RH)
2. Exhaust manifold cover (RH)
3. Exhaust manifold (RH)
4. Gaskets
5. Exhaust manifold (LH)
6. Exhaust manifold cover (LH)
7. Air fuel ratio A/F sensor 1 (LH)
A. Up
B. Coated face
C. Manifold side
D. Up mark
Front
AWBIA1017GB
2011 Pathfinder
EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-171
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b. Remove the air fuel ratio A/F sensors from both LH and RH
exhaust manifolds using Tool.
CAUTION:
• Do not damage the air fuel ratio A/F sensors
• Discard any air fuel ratio A/F sensor which has been
dropped from a height of more than 0.5m (19.7 in) onto a
hard surface such as a concrete floor. Replace it with a
new one.
8. Support the engine using a suitable tool.
9. Remove the exhaust manifold (LH) (A) following the steps
below.
•
: Front
• B: Exhaust manifold (RH)
a. Remove the engine mounting insulator. Refer to
b. Remove the exhaust manifold cover.
c. Remove the engine mounting bracket. Refer to
d. Loosen the nuts in reverse order as shown using suitable tool.
e. Remove the exhaust manifold (LH) (A) and discard gasket.
CAUTION:
Discard nuts and studs. Do not reuse.
10. Remove the exhaust manifold (RH) (B) following the steps
below.
•
: Front
• A: Exhaust manifold (LH)
a. Remove the engine mounting insulator. Refer to
b. Remove the exhaust manifold cover.
c. Remove the engine mounting bracket. Refer to
d. Remove the oil level gauge guide. Refer to
e. Loosen the nuts in reverse order as shown using suitable tool.
f.
Remove the exhaust manifold (RH) (B) and discard gasket.
CAUTION:
Discard nuts and studs. Do not reuse.
INSPECTION AFTER REMOVAL
Surface Distortion
• Check the flatness of each exhaust manifold flange surface using
suitable tools.
• If measurement exceeds the limit, replace the exhaust manifold.
INSTALLATION
Installation is in the reverse order of removal.
Tool number
: — (J-44626)
WBIA0630E
AWBIA0814ZZ
AWBIA0814ZZ
Flatness limit
: 0.3 mm (0.012 in)
KBIA2504E
2011 Pathfinder
EM-172
< REMOVAL AND INSTALLATION >
[VK56DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
• Install new exhaust manifold gasket with the top of the triangular up mark on it facing up and its coated face
(gray side) toward the exhaust manifold side.
• Fasten all new nuts twice to the specified torque.
• Tighten new studs to 14.7 N·m (1.5 kg-m, 11 ft-lb)
• Tighten the exhaust manifold nuts LH and RH in the numerical
order shown. Then retighten the nuts to specification.
- A: Exhaust manifold (LH)
- B: Exhaust manifold (RH)
-
: Front
• Before installing new air fuel ratio A/F sensors, clean the exhaust system threads using suitable tool and
apply anti-seize lubricant.
CAUTION:
• Do not over tighten the air fuel ratio A/F sensors. Doing so may cause damage to the sensor,
resulting in the MIL coming on.
AWBIA0814ZZ
Oxygen sensor thread cleaner
: (J-43897-12)
Oxygen sensor thread cleaner
: (J-43897-18)
2011 Pathfinder
OIL PAN AND OIL STRAINER
EM-173
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OIL PAN AND OIL STRAINER
Exploded View
INFOID:0000000006247077
Removal and Installation
INFOID:0000000006247078
REMOVAL
WARNING:
To avoid the danger of being scalded, do not drain engine oil when engine is hot.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
1. Disconnect battery negative terminal. Refer to
PG-76, "Removal and Installation"
2. Remove the front and rear engine undercovers.
3. Drain engine oil. Refer to
4. Remove the oil cooler. Refer to
LU-30, "Removal and Installation"
.
5. Disconnect A/T cooler hoses from radiator.
6. Remove lower radiator hose and pipe assembly. Refer to
CO-49, "Removal and Installation"
.
1.
Oil pan (upper)
2.
O-ring
3.
O-ring
4.
O-ring
5.
O-ring (with collar)
6.
Oil level gauge guide
7.
Oil level gauge
8.
O-ring
9.
Connector bolt
10.
Oil filter
11. Oil cooler
12. Relief valve
13.
Oil pressure switch
14. Gasket
15. Drain plug
16.
Oil pan (lower)
17. Oil strainer
A.
To front cover
B.
To oil pump
C.
To oil pump
D.
Oil pan side
AWBIA1060GB
2011 Pathfinder
EM-174
< REMOVAL AND INSTALLATION >
[VK56DE]
OIL PAN AND OIL STRAINER
7. Remove RH and LH front wheel and tire using suitable tool. Refer to
8. Remove the power steering pump without disconnecting the power steering hoses and position aside.
ST-24, "Removal and Installation"
9. Remove air duct and resonator assembly. Refer to
EM-165, "Removal and Installation"
10. Remove upper radiator hose.
11. Disconnect coolant reservoir hose from radiator.
12. Remove crankshaft driven type cooling fan. Refer to
CO-52, "Removal and Installation (Crankshaft Driven
13. Disconnect the following connectors.
• Harness ground
• Power steering switch
• A/C compressor
• Oil pressure switch
14. Remove generator and generator bracket. Refer to
CHG-21, "Removal and Installation"
.
15. Remove A/C compressor without disconnecting the A/C pipes and position aside. Refer to
"Removal and Installation for Compressor"
.
16. Remove front frame crossmember using suitable tool.
17. Remove the front final drive. Refer to
FAX-8, "VK56DE : Removal and Installation"
.
18. Remove the steering gear. Refer to
ST-22, "Removal and Installation"
.
19. Remove the oil pressure switch.
20. Remove the oil pan (lower) using the following steps.
a. Remove the oil pan (lower) bolts in the reverse order as shown
using suitable tool.
•
: Engine front
b. Insert Tool between the lower oil pan and the upper oil pan.
CAUTION:
• Be careful not to damage the mating surface.
• Do not insert screwdriver, this will damage the mating
surfaces.
c.
Tap (1) Tool to insert it and then slide (2) it by tapping its side
with a hammer to remove the oil pan (lower) from the oil pan
(upper).
21. Remove the oil strainer from the oil pan (upper).
22. Remove the oil pan (upper) using the following steps.
AWBIA0832ZZ
Tool number
: KV10111100 (J-37228)
WBIA0566E
2011 Pathfinder
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