Nissan Pathfinder (2009 year). Manual - part 371

 

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Nissan Pathfinder (2009 year). Manual - part 371

 

 

AIR CLEANER AND AIR DUCT

EM-25

< ON-VEHICLE REPAIR >

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AIR CLEANER AND AIR DUCT

Exploded View

INFOID:0000000003939485

Removal and Installation

INFOID:0000000003939486

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.

REMOVAL

1.

Remove the engine room cover using power tool. Refer to 

EM-166, "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 cracks or tears.
• If anything found, replace air duct and resonator assembly.

INSTALLATION

Installation is in the reverse order of removal.

1.

Air cleaner case (lower)

2.

Air cleaner filter

3.

Air cleaner case (upper)

4.

Air duct and resonator assembly

Front

AWBIA0133GB

2009 Pathfinder

EM-26

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INTAKE MANIFOLD COLLECTOR

INTAKE MANIFOLD COLLECTOR

Exploded View

INFOID:0000000003939487

Removal and Installation

INFOID:0000000003939488

REMOVAL

1.

Remove the air dam using power tool.

2.

Remove the engine undercover using power tool.

3.

Remove engine room cover using power tool. Refer to 

EM-24, "Removal and Installation"

.

4.

Remove air cleaner case (upper) and air duct assembly. Refer to 

EM-25, "Removal and Installation"

.

5.

Remove electronic throttle control actuator as follows:

a.

Drain engine coolant, or when water hoses are disconnected, attach plug to prevent engine coolant leak-
age. Refer to 

CO-12, "Changing Engine Coolant"

.

WARNING:

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

CAUTION:

• Perform when engine is cold.
• Do not spill engine coolant on drive belt.

b.

Disconnect water hoses from electronic throttle control actuator.

1.

Vacuum tank

2.

VIAS control solenoid valve

3.

Vacuum hose

4.

Intake manifold collector support

5.

Water hose

6.

Electronic throttle control actuator

7.

Water hose

8.

EVAP hose

9.

Bracket

10. EVAP hose

11.

EVAP canister purge volume control 
solenoid valve

12. Gasket

13. Gasket

14. Intake manifold collector

15. Clip

16. PCV hose

17. Connector

18. PCV hose

a.

To intake manifold collector

b.

To power valve

c.

To throttle body

d.

To cylinder head (RH bank)

WBIA0731E

2009 Pathfinder

INTAKE MANIFOLD COLLECTOR

EM-27

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• When engine coolant is not drained from radiator, attach plug to water hoses to prevent engine coolant

leakage.

c.

Disconnect harness connector.

d.

Loosen bolts in reverse order as shown.

CAUTION:

• Handle carefully to avoid any shock to electronic throttle

control actuator.

• Do not disassemble.

6.

Remove the following parts:
• Vacuum hose (to brake booster)
• PCV hose

7.

Loosen bolts in reverse order as shown to remove intake mani-
fold collector support.

8.

Disconnect EVAP hoses and harness connector from EVAP canister purge volume control solenoid valve.

9.

Remove EVAP canister purge volume control solenoid valve.

10. Remove VIAS control solenoid valve and vacuum tank.

• Add mating marks as necessary for easier installation. 

11. Loosen nuts and bolts in reverse order as shown with power

tool, and remove intake manifold collector.

CAUTION:

Cover engine openings to avoid entry of foreign materials.

INSTALLATION

Installation is in the reverse order of removal. Note the following:

Intake Manifold Collector

• If stud bolts were removed from intake manifold, install them and tighten to the specified torque.

PBIC2875E

PBIC2876E

PBIC2877E

2009 Pathfinder

EM-28

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INTAKE MANIFOLD COLLECTOR

• Tighten nuts and bolts in numerical order as shown.

Electronic Throttle Control Actuator

• Tighten bolts in numerical order as shown.
• Perform the “Throttle Valve Closed Position Learning” when har-

ness connector of electronic throttle control actuator is discon-
nected. Refer to 

EC-25, "Throttle Valve Closed Position Learning"

.

• Perform the “Idle Air Volume Learning” and “Throttle Valve Closed

Position Learning” when electronic throttle control actuator is
replaced. Refer to 

EC-25, "Idle Air Volume Learning"

.

Intake manifold collector 
bolts and nuts

: 11.0 N·m (1.1 kg-m, 8 ft-lb)

Stud bolts

: 6.9 N·m (7.0kg-m, 61 in-lb)

PBIC2877E

PBIC2875E

2009 Pathfinder

INTAKE MANIFOLD

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INTAKE MANIFOLD

Exploded View

INFOID:0000000003939489

Removal and Installation

INFOID:0000000003939490

REMOVAL

1.

Release fuel pressure. Refer to 

EC-484, "Fuel Pressure Check"

.

2.

Remove intake manifold collector. Refer to 

EM-26, "Removal and Installation"

.

3.

Remove fuel tube and fuel injector assembly. Refer to 

EM-45, "Removal and Installation"

.

4.

Loosen nuts and bolts with power tool in reverse order as shown
to remove intake manifold.

5.

Remove gaskets.

CAUTION:

Cover engine openings to avoid entry of foreign materials.

INSPECTION AFTER REMOVAL

Surface Distortion

1.

Intake manifold

2.

Gasket

PBIC2878E

PBIC2879E

2009 Pathfinder

EM-30

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INTAKE MANIFOLD

• Check the surface distortion of the intake manifold mating surface

with straightedge and feeler gauge.

• If it exceeds the limit, replace intake manifold.

INSTALLATION

Installation is in the reverse order of removal. Note the following:

Intake Manifold

• If stud bolts were removed from cylinder head, install them and tighten to the specified torque.

• Tighten all nuts and bolts to the specified torque in two or more

steps in numerical order as shown.

Limit

: 0.1 mm (0.004 in)

PBIC0870E

Intake manifold studs

: 11.0 N·m (1.1kg-m, 8 ft-lb)

Intake manifold bolt and nuts

1st step

: 7.4 N·m (0.75 kg-m, 65 in-lb)

2nd step and after

: 29.0 N·m (3.0 kg-m, 21 ft-lb)

PBIC2879E

2009 Pathfinder

EXHAUST MANIFOLD AND THREE WAY CATALYST

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EXHAUST MANIFOLD AND THREE WAY CATALYST

Exploded View

INFOID:0000000003939491

Removal and Installation

INFOID:0000000003939492

REMOVAL (LH)

WARNING:

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

1.

Remove air cleaner case and air duct and resonator assembly. Refer to 

EM-25, "Removal and Installa-

tion"

.

2.

Remove the air dam using power tool.

3.

Remove engine undercover using power tool.

4.

Disconnect harness connector and remove LH and RH heated
oxygen sensor 2 using Tool.

CAUTION:

• Be careful not to damage heated oxygen sensor 2.
• Discard any heated oxygen sensor 2 which has been

dropped from a height of more than 0.5 m (19.70 in) onto a
hard surface such as a concrete floor; replace with a new
sensor.

5.

Remove center exhaust tube, main muffler and left front exhaust tube. Refer to 

EX-6, "Removal and

Installation"

.

6.

Remove exhaust manifold cover (LH).

1.

Exhaust manifold cover (RH)

2.

Exhaust manifold (RH)

3.

Gasket

4.

Exhaust manifold (LH)

5.

Exhaust manifold cover (LH)

PBIC2880E

Tool number

: KV10114400 (J-38365)

LBIA0446E

2009 Pathfinder

EM-32

< ON-VEHICLE REPAIR >

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EXHAUST MANIFOLD AND THREE WAY CATALYST

7.

Disconnect harness connector and remove air fuel ratio sensor
1 (LH) using Tool (A).
•

: Front

CAUTION:

• Be careful not to damage air fuel ratio sensor 1.
• Discard any air fuel ratio sensor 1 which has been

dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; replace with a new
sensor.

8.

Remove three way catalyst (LH).

9.

Loosen nuts with power tool in reverse order as shown.
•

: Front

NOTE:
Disregard the numerical order No. 7 and 8 in removal.

10. Remove gaskets.

CAUTION:

Cover engine openings to avoid entry of foreign materials.

INSPECTION AFTER REMOVAL

Surface Distortion

• Check the surface distortion of the exhaust manifold mating sur-

face with straightedge and feeler gauge.

• If it exceeds the limit, replace exhaust manifold.

INSTALLATION (LH)

Installation is in the reverse order of removal.

Exhaust Manifold Gasket

Install the exhaust manifold gasket in direction as shown.
•

: Front

• A: Identification hole

Exhaust Manifold

Tool number

: KV991J0050 (J-44626)

AWBIA0724ZZ

AWBIA0725ZZ

Limit

: 0.3 mm (0.012 in)

PBIC1096E

AWBIA0726ZZ

2009 Pathfinder

 

 

 

 

 

 

 

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