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Nissan Pathfinder (2009 year). Manual - part 389

INTAKE MANIFOLD

EM-169

< ON-VEHICLE REPAIR >

[VK56DE]

Disconnect the fuel tube quick connector on the engine side.

• Perform the following steps to disconnect the quick connector

using Tool.

Remove quick connector cap (engine side only).

With the sleeve side of Tool facing quick connector, install Tool
onto fuel tube.

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.

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.

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

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.

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

EM-182, "Removal and Installation"

11. Loosen the bolts in reverse order shown using power tool.

12. Remove the intake manifold.

CAUTION:

Cover engine openings to avoid entry of foreign materials.
• Clean all gasket mating surfaces, do not reuse gaskets.

LBIA0395E

Tool number

: 16441 6N210 (J-45488)

SBIA0354E

WBIA0604E

KBIA2462E

2009 Pathfinder

EM-170

< ON-VEHICLE REPAIR >

[VK56DE]

INTAKE MANIFOLD

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 electronic 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).

Make sure no foreign substances are deposited in and around tube and quick connector, and they are not
damaged.

Thinly apply new engine oil around the fuel tube from tip end to the spool end.

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.

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

PBIC0017E

KBIA0272E

2009 Pathfinder

INTAKE MANIFOLD

EM-171

< ON-VEHICLE REPAIR >

[VK56DE]

Install the quick connector cap on the quick connector joint (on
engine side only).

Install the fuel hose and tube to hose clamps.

Refill the engine coolant. Refer to

CO-41, "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-500,

"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-500, "Idle Air Volume Learning"

SBIA0354E

2009 Pathfinder

EM-172

< ON-VEHICLE REPAIR >

[VK56DE]

EXHAUST MANIFOLD AND THREE WAY CATALYST

EXHAUST MANIFOLD AND THREE WAY CATALYST

Exploded View

INFOID:0000000003939550

Removal and Installation

INFOID:0000000003939551

REMOVAL

WARNING:

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

Remove the air dam using power tool.

Remove the engine undercover using power tool.

Remove front final drive assembly. Refer to

DLN-376, "Removal and Installation"

Remove the main muffler assembly and center exhaust tube. Refer to

EX-6, "Removal and Installation"

Remove the front exhaust tubes. Refer to

EX-6, "Removal and Installation"

Remove front tires.

Remove fender protectors. Refer to

EXT-22, "Removal and Installation of Front Fender Protector"

Remove the LH and RH air fuel ratio A/F sensors.
• Follow steps below to remove each air fuel ratio A/F sensor.

Remove the harness connector of each air fuel ratio A/F sensor, and harness from bracket and middle
clamp.

Air fuel ratio A/F sensor 1 (RH)

Exhaust manifold cover (RH)

Exhaust manifold (RH)

Gaskets

Exhaust manifold (LH)

Exhaust manifold cover (LH)

Air fuel ratio A/F sensor 1 (LH)

A. Up

Coated face

C. Manifold side

D. Up mark

Front

AWBIA0706GB

2009 Pathfinder

EXHAUST MANIFOLD AND THREE WAY CATALYST

EM-173

< ON-VEHICLE REPAIR >

[VK56DE]

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.

Support the engine using a suitable tool.

10. Remove the exhaust manifold (LH) (A) following the steps

below.
•

: Front

• B: Exhaust manifold (RH)

Remove the engine mounting insulator. Refer to

EM-220,

"Removal and Installation"

Remove the exhaust manifold cover.

Remove the engine mounting bracket. Refer to

EM-220,

"Removal and Installation"

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

Remove the exhaust manifold (LH) (A).

11. Remove the exhaust manifold (RH) (B) following the steps

below.
•

: Front

• A: Exhaust manifold (LH)

Remove the engine mounting insulator. Refer to

EM-220,

"Removal and Installation"

Remove the exhaust manifold cover.

Remove the engine mounting bracket. Refer to

EM-220,

"Removal and Installation"

Remove the oil level gauge guide. Refer to

EM-175, "Removal

and Installation"

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

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

WBIA0696E

Flatness limit

: 0.3 mm (0.012 in)

KBIA2504E

2009 Pathfinder

EM-174

< ON-VEHICLE REPAIR >

[VK56DE]

EXHAUST MANIFOLD AND THREE WAY CATALYST

• Tighten the exhaust manifold nuts LH and RH in the numerical

order shown. Then recheck the torque of the nuts.

- A: Exhaust manifold (LH)
- B: Exhaust manifold (RH)
-

: Front

• Before installing new air fuel ratio A/F sensors, clean the exhaust system threads using 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.

WBIA0696E

Tool number

: — (J-43879-12)

: — (J-43897-18)

2009 Pathfinder

OIL PAN AND OIL STRAINER

EM-175

< ON-VEHICLE REPAIR >

[VK56DE]

OIL PAN AND OIL STRAINER

Exploded View

INFOID:0000000003939552

Removal and Installation

INFOID:0000000003939553

REMOVAL

WARNING:

To avoid the danger of being scalded, do not drain engine oil when engine is hot.

Remove the engine. Refer to

EM-220, "Removal and Installation"

Remove the oil pan (lower) using the following steps.

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

KBIA2465E

2009 Pathfinder

EM-176

< ON-VEHICLE REPAIR >

[VK56DE]

OIL PAN AND OIL STRAINER

Remove the oil pan (lower) bolts using power tool.

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 on the side
of the Tool as shown.

Remove the oil cooler assembly. Refer to

LU-28, "Removal and Installation"

Remove the oil strainer from the oil pan (upper).

Remove the oil pan (upper) using the following steps.

Remove the oil pan (upper) bolts as shown.

Remove the oil pan (upper) from the cylinder block by prying it at
the points shown, using suitable tool.

CAUTION:

Do not damage mating surface.

KBIA2466E

Tool number

: KV10111100 (J-37228)

WBIA0566E

KBIA2467E

KBIA2468E

2009 Pathfinder

Content .. 387 388 389 390 ..