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Nissan Pathfinder (2011 year). Manual - part 382

INTAKE MANIFOLD

EM-167

< REMOVAL AND INSTALLATION >

[VK56DE]

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

EM-

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

< REMOVAL AND INSTALLATION >

[VK56DE]

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

CO-44, "Changing Engine

Coolant"

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

EC-593,

"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-

tion"

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

WT-50, "Adjustment"

6. Remove fender covers and protectors. Refer to

EXT-25, "Removal and Installation of Front Fender Pro-

tector"

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

< REMOVAL AND INSTALLATION >

[VK56DE]

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

EM-225,

"Removal and Installation"

b. Remove the exhaust manifold cover.
c. Remove the engine mounting bracket. Refer to

EM-225,

"Removal and Installation"

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

EM-225,

"Removal and Installation"

b. Remove the exhaust manifold cover.
c. Remove the engine mounting bracket. Refer to

EM-225,

"Removal and Installation"

d. Remove the oil level gauge guide. Refer to

EM-173, "Removal

and Installation"

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

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

< REMOVAL AND INSTALLATION >

[VK56DE]

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

LU-27, "Changing Engine Oil"

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"

Oil pan (upper)

O-ring

O-ring (with collar)

Oil level gauge guide

Oil level gauge

O-ring

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

To front cover

To oil pump

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

WT-50, "Adjustment"

8. Remove the power steering pump without disconnecting the power steering hoses and position aside.

Refer to

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

Type)"

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

HA-38,

"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.

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

Content .. 380 381 382 383 ..