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Nissan Pathfinder (2010 year). Manual - part 379

EM-160

< ON-VEHICLE REPAIR >

[VK56DE]

ENGINE ROOM COVER

ON-VEHICLE REPAIR

ENGINE ROOM COVER

Removal and Installation

INFOID:0000000005260505

CAUTION:

Do not damage or scratch cover when installing or removing.

REMOVAL

• Remove the engine room cover bolts and engine room cover.

INSTALLATION

Installation is in the reverse order of removal.

ALBIA0414GB

2010 Pathfinder

AIR CLEANER AND AIR DUCT

EM-161

< ON-VEHICLE REPAIR >

[VK56DE]

AIR CLEANER AND AIR DUCT

Exploded View

INFOID:0000000005260506

Removal and Installation

INFOID:0000000005260507

REMOVAL

CAUTION:

Handle mass air flow sensor with care.

• Do not shock it.

• Do not disassemble it.

• Do not touch its sensor.

NOTE:

• Add marks as necessary for easier installation.
1. Remove the engine room cover using power tool. Refer to

EM-160, "Removal and Installation"

2. Disconnect the harness connector from air cleaner case (upper).
3. Remove the air duct and resonator assembly and air cleaner case (upper).
4. Remove air cleaner filter and air cleaner case (lower).

INSPECTION AFTER REMOVAL

Inspect air duct and resonator assembly for crack or tear.

• If anything found, replace air duct and resonator assembly.

INSTALLATION

Installation is in the reverse order of removal.

Air cleaner case (lower)

Air cleaner filter

Air cleaner case (upper)

Air duct and resonator assembly

Front

ALBIA0413GB

2010 Pathfinder

EM-162

< ON-VEHICLE REPAIR >

[VK56DE]

INTAKE MANIFOLD

INTAKE MANIFOLD

Exploded View

INFOID:0000000005260508

Removal and Installation

INFOID:0000000005260509

REMOVAL

1. Remove the engine under cover. Refer to

EXT-14, "Removal and Installation"

2. Partially drain the engine coolant. Refer to

CO-40, "Changing Engine Coolant"

WARNING:

To avoid the danger of being scalded, never drain the engine coolant when the engine is hot.

3. Release the fuel pressure. Refer to

EC-958, "Fuel Pressure Check"

4. Disconnect the battery negative terminal. Refer to

PG-78, "Removal and Installation"

5. Remove the engine room cover. Refer to

EM-160, "Removal and Installation"

6. Remove the air duct and resonator assembly. Refer to

EM-161, "Removal and Installation"

Intake manifold

PCV hose

Gasket

Electric throttle control actuator

Water hose

PCV hose

EVAP hose

EVAP canister purge control solenoid valve

10.

Bracket

11.

Gasket

KBIA2461E

2010 Pathfinder

INTAKE MANIFOLD

EM-163

< ON-VEHICLE REPAIR >

[VK56DE]

7. Disconnect the fuel tube quick connector on the engine side in

the following steps.

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.

8. Remove or disconnect harnesses, brackets, vacuum hose, vacuum gallery and PCV hose and tube from

intake manifold.

9. Remove the EVAP canister purge control solenoid valve, if necessary.
10. Remove electric throttle control actuator by loosening bolts diagonally.

CAUTION:

• Handle carefully to avoid any damage to the electric throttle control actuator.

• Do not disassemble.

11. Remove the fuel injectors and fuel tube assembly. Refer to

EM-176, "Removal and Installation"

LBIA0395E

SBIA0354E

Tool number

: 16441 6N210 (J-45488)

WBIA0604E

2010 Pathfinder

EM-164

< ON-VEHICLE REPAIR >

[VK56DE]

INTAKE MANIFOLD

12. Loosen the bolts in reverse order shown using power tool.
13. 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.

• 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 diago-

nally in several steps.

• 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.

KBIA2462E

PBIC0017E

2010 Pathfinder

INTAKE MANIFOLD

EM-165

< ON-VEHICLE REPAIR >

[VK56DE]

• 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).

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-40, "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-511,

"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-511, "Idle Air Volume Learning"

KBIA0272E

SBIA0354E

2010 Pathfinder

EM-166

< ON-VEHICLE REPAIR >

[VK56DE]

EXHAUST MANIFOLD AND THREE WAY CATALYST

EXHAUST MANIFOLD AND THREE WAY CATALYST

Exploded View

INFOID:0000000005260510

Removal and Installation

INFOID:0000000005260511

REMOVAL

WARNING:

Perform the work when the exhaust and cooling system have cooled sufficiently.

1. Remove the engine under covers. Refer to

EXT-14, "Removal and Installation"

2. Remove front final drive assembly. Refer to

DLN-387, "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-49, "Rotation"

6. Remove fender protectors. Refer to

EXT-23, "Removal and Installation of Front Fender Protector"

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

AWBIA0706GB

2010 Pathfinder

EXHAUST MANIFOLD AND THREE WAY CATALYST

EM-167

< ON-VEHICLE REPAIR >

[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-214,

"Removal and Installation"

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

EM-214,

"Removal and Installation"

d. Loosen the nuts in reverse order as shown using power tool.
e. Remove the exhaust manifold (LH) (A).

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-214,

"Removal and Installation"

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

EM-214,

"Removal and Installation"

d. Remove the oil level gauge guide. Refer to

EM-169, "Removal

and Installation"

e. Loosen the nuts in reverse order as shown using power tool.
f.

Remove the exhaust manifold (RH) (B).

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.

• 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.

Tool number

: — (J-44626)

WBIA0630E

AWBIA0814ZZ

Flatness limit

: 0.3 mm (0.012 in)

KBIA2504E

2010 Pathfinder

Content .. 377 378 379 380 ..