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Nissan Pathfinder (2011 year). Manual - part 367

FUEL INJECTOR AND FUEL TUBE

EM-47

< REMOVAL AND INSTALLATION >

[VQ40DE]

FUEL INJECTOR AND FUEL TUBE

Exploded View

INFOID:0000000006247016

Removal and Installation

INFOID:0000000006247017

WARNING:

• Put a “CAUTION FLAMMABLE” sign in the workshop.

• Be sure to work in a well ventilated area and furnish workshop with a CO

fire extinguisher.

• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.

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

CAUTION:

Do not remove or disassemble parts unless instructed as shown.

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.

REMOVAL

1. Release the fuel pressure. Refer to

EC-484, "Fuel Pressure Check"

2. Disconnect the battery negative terminal. Refer to

PG-76, "Removal and Installation"

3. Remove the intake manifold collector. Refer to

EM-27, "Removal and Installation"

CAUTION:

Fuel tube (RH)

O-ring

Fuel tube (LH)

Clip

O-ring (blue)

Fuel injector

O-ring (brown)

O-ring

Spacer

10. Fuel damper

11. Fuel damper cap

12. Quick connector cap

13. Fuel feed hose

PBIC2957E

2011 Pathfinder

EM-48

< REMOVAL AND INSTALLATION >

[VQ40DE]

FUEL INJECTOR AND FUEL TUBE

Perform this step when engine is cold.

4. Disconnect the fuel quick connector on the engine side.
a. Remove quick connector cap.

b. 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 on that position.

CAUTION:

Inserting the Tool hard will not disconnect quick connector.

Hold Tool where it contacts and goes no further.

d. Pull the quick connector straight out from the fuel tube.

CAUTION:

• Do not reuse O-ring.

• Pull quick connector holding it at the (A) position, as shown.

• 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 for-

eign materials.

5. Remove PCV hose between rocker covers (right and left banks).
6. Disconnect harness connector from fuel injector.
7. Loosen bolts in reverse order as shown, and remove fuel tube

and fuel injector assembly.

CAUTION:

Do not tilt it, or remaining fuel in pipes may flow out from

pipes.

8. Remove bolts which connects fuel tube (RH) and fuel tube (LH).

LBIA0090E

Tool number

: — (J-45488)

WBIA0295E

PBIC1899E

PBIC2902E

2011 Pathfinder

FUEL INJECTOR AND FUEL TUBE

EM-49

< REMOVAL AND INSTALLATION >

[VQ40DE]

9. Remove fuel injector from fuel tube as follows:
a. Carefully open and remove clip.
b. Remove fuel injector from fuel tube by pulling straight.

CAUTION:

• Be careful with remaining fuel that may leak out from fuel

tube.

• Do not damage injector nozzles during removal.

• Do not bump or drop fuel injectors.

• Do not disassemble fuel injectors.

10. Disconnect fuel tube (RH) from fuel tube (LH).
11. Loosen bolts, to remove fuel damper cap and fuel damper, if necessary.

INSTALLATION

1. Install fuel damper as follows:
a. Install new O-ring to fuel tube as shown.

• When handling new O-rings, be careful of the following cau-

tion:

CAUTION:

• Do not reuse O-ring.

• Handle O-ring with bare hands. Never wear gloves.

• Lubricate new O-ring with new engine oil.

• Do not clean O-ring with solvent.

• Make sure that O-ring and its mating part are free of for-

eign material.

• When installing O-ring, do not scratch it with tool or fin-

gernails.

• Do not twist or stretch O-ring. If O-ring was stretched

while it was being attached, allow it to retract before

inserting it into fuel tube.

• Insert new O-ring straight into fuel tube. Do not angle or

twist it.

b. Install spacer to fuel damper.
c. Insert fuel damper straight into fuel tube.

CAUTION:

• Insert straight, making sure that the axis is lined up.

• Do not pressure-fit with excessive force.

• Insert fuel damper until (B) is touching (A) of fuel tube.

d. Tighten bolts evenly in turn.

• After tightening bolts, make sure that there is no gap between fuel damper cap and fuel tube.

2. Install new O-rings to fuel injector, paying attention to the following.

CAUTION:

• Do not reuse O-rings.

PBIC2999E

Reference value

: 130 N (13.3 kg, 29.2 lb)

PBIC2903E

2011 Pathfinder

EM-50

< REMOVAL AND INSTALLATION >

[VQ40DE]

FUEL INJECTOR AND FUEL TUBE

• Upper and lower O-ring are different colors.

• Handle O-ring with bare hands. Never wear gloves.

• Lubricate new O-ring with new engine oil.

• Do not clean O-ring with solvent.

• Make sure that O-ring and its mating part are free of foreign material.

• When installing O-ring, be careful not to scratch it with tool or fingernails.

• Do not twist or stretch O-ring. If O-ring was stretched while it was being attached, allow it to

retract before inserting it into fuel tube.

• Insert O-ring straight into fuel injector. Do not angle or twist it.

3. Install fuel injector to fuel tube.
a. Insert clip into clip mounting groove on the fuel injector.

• Insert new clip so that protrusion of fuel injector matches cut-

out of clip.

CAUTION:

• Do not reuse O-ring.

• Do not reuse clip. Replace it with a new one.

• Do not allow the clip to interfere with the O-ring. If inter-

ference occurs, replace O-ring.

b. Insert the fuel injector into the fuel tube with the clip attached.

• Insert it while matching it to the axial center.

• Insert fuel injector so that protrusion of fuel tube matches cut-

out of clip.

• Make sure that fuel tube flange is securely fixed in flange fixing

groove on clip.

Make sure that the installation is complete by checking that the

fuel injector does not rotate or come off.

• Make sure that protrusions of the fuel injectors are aligned

with cutouts of clips after installation.

4. Connect the fuel tube (RH) to the fuel tube (LH), and tighten bolts temporarily.

• Tighten bolts to the specified torque after installing fuel tube and fuel injector assembly.

CAUTION:

• Do not reuse O-ring.

• Handle O-ring with bare hands. Do not wear gloves.

• Lubricate O-ring with new engine oil.

• Do not clean O-ring with solvent.

• Make sure that O-ring and its mating part are free of foreign material.

• When installing O-ring, be careful not to scratch it with tool or fingernails.

• Do not twist or stretch O-ring. If O-ring was stretched while it was being attached, allow it to

retract before inserting it into fuel tube.

• Insert new O-ring straight into fuel tube. Do not angle or twist it.

5. Install fuel tube and fuel injector assembly to intake manifold.

CAUTION:

Do not let the tip of the injector nozzle come in contact with other parts.

Fuel tube side

: Black

Nozzle side

: Green

PBIC3000E

2011 Pathfinder

FUEL INJECTOR AND FUEL TUBE

EM-51

< REMOVAL AND INSTALLATION >

[VQ40DE]

• Tighten bolts in two steps in numerical order as shown.

6. Tighten bolts which connects fuel tube (RH) and fuel tube (LH) to the specified torque.
7. Connect fuel injector harness connector.
8. Install intake manifold collector. Refer to

EM-27, "Removal and Installation"

9. Installation of the remaining components is in the reverse order of removal.

INSPECTION AFTER INSTALLATION

After installing the fuel tubes, make sure there are no fuel leaks at the connections using the following steps.

1. Apply fuel pressure to the fuel lines by turning ignition switch ON (with engine stopped). Then check for

fuel leaks at the connections.

2. Start the engine and rev it up and check for fuel leaks at the connections.

WARNING:

Do not touch engine immediately after stopping, as engine becomes extremely hot.

NOTE:

Use mirrors for checking on hidden points.

Fuel injector tube assembly bolts
1st step

: 10.1 N·m (1.0 kg-m, 7 ft-lb)

2nd step

: 22.0 N·m (2.2 kg-m, 16 ft-lb)

PBIC2902E

2011 Pathfinder

EM-52

< REMOVAL AND INSTALLATION >

[VQ40DE]

INTAKE VALVE TIMING CONTROL

INTAKE VALVE TIMING CONTROL

Intake Valve Timing Control Solenoid Valve (LH)

INFOID:0000000008188522

REMOVAL

1. Disconnect intake valve timing control solenoid valve connector (LH).
2. Remove intake valve timing control solenoid valve bolts (LH) and O-ring from rocker cover.

CAUTION:

Do not reuse O-ring.

INSTALLATION

Installation is in the reverse order of removal. Refer to

EM-53, "Exploded View"

CAUTION:

• Do not reuse O-rings.

• Lubricate the new O-ring for the intake valve timing control solenoid valve with clean engine oil

before installing.

Intake Valve Timing Control Solenoid Valve (RH)

INFOID:0000000008188523

REMOVAL

1. Remove intake manifold collector. Refer to

EM-27, "Removal and Installation"

2. Disconnect intake valve timing control solenoid valve connector (RH).
3. Remove intake valve timing control solenoid valve bolts (RH) and O-ring from rocker cover.

CAUTION:

Do not reuse O-ring.

INSTALLATION

Installation is in the reverse order of removal. Refer to

EM-53, "Exploded View"

CAUTION:

• Do not reuse O-rings.

• Lubricate the new O-ring for the intake valve timing control solenoid valve with clean engine oil

before installing.

2011 Pathfinder

FRONT TIMING CHAIN CASE

EM-53

< REMOVAL AND INSTALLATION >

[VQ40DE]

FRONT TIMING CHAIN CASE

Exploded View

INFOID:0000000006247018

Removal and Installation

INFOID:0000000006247019

REMOVAL

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.
1. Remove engine room cover. Refer to

EM-25, "Removal and Installation"

2. Drain engine oil. Refer to

LU-9, "Changing Engine Oil"

CAUTION:

• Perform this step when engine is cold.

• Do not spill engine oil on drive belts.

3. Drain engine coolant from radiator. Refer to

CO-13, "Changing Engine Coolant"

CAUTION:

• Perform this step when engine is cold.

• Do not spill engine coolant on drive belts.

4. Remove engine cooling fan (Motor driven type). Refer to

CO-22, "Removal and Installation (Motor driven

type)"

5. Disconnect engine harnesses and remove harness brackets from front timing chain case.
6. Remove EVAP canister purge volume control solenoid valve, if necessary.

AWBIA0858GB

O-ring

Collared O-ring

Intake valve timing control cover (RH)

Idler pulley

Drive belt auto tensioner

Intake valve timing control cover (LH)

Collared O-ring

O-ring

Chain tensioner cover

10. Cooling fan bracket

11. Crankshaft pulley