Nissan Frontier. Manual - part 713

FUEL INJECTOR AND FUEL TUBE

EM-41

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6. 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 reuse O-rings.

• Do not damage fuel injector nozzles during removal.

• Do not bump or drop fuel injectors.

• Do not disassemble fuel injectors.

INSTALLATION

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

CAUTION:

• Upper and lower O-rings are different colors.

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

• Lubricate O-ring with new engine oil.

• Do not reuse O-rings.

• 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.

PBIC2999E

Fuel tube side

: Black

Nozzle side

: Green

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FUEL INJECTOR AND FUEL TUBE

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

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

out of clip.

CAUTION:

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

• Do not reuse O-rings.

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

ence 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 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.

3. Install fuel tube and fuel injector assembly as follows:

CAUTION:

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

a. Insert the tip of each fuel injector into intake manifold.
b. Tighten bolts in two steps in numerical order as shown.

4. Connect harness connectors to fuel injectors.
5. Install intake manifold. Refer to

EM-27, "Removal and Installation"

6. Connect quick connector at the engine side as follows:
a. Check the connection for foreign material and damage.
b. Align center to insert quick connector straight into fuel tube.

NOTE:

The figure shows the engine side as an example.

• Insert quick connector to fuel tube until the top spool on fuel

tube is inserted completely and the second level spool is posi-

tioned slightly below quick connector bottom end.

CAUTION:

• Hold (A) position as shown when inserting fuel tube into

quick connector.

• Do not reuse O-rings.

• 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.

PBIC3000E

Fuel tube bolts
1st step

: 12.8 N·m (1.3 kg-m, 9 ft-lb)

2nd step

: 28.0 N·m (2.9 kg-m, 21 ft-lb)

PBIC2998E

KBIA0272E

FUEL INJECTOR AND FUEL TUBE

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c. Before clamping fuel feed hose with quick connector cap, pull quick connector hard by hand holding (A)

position. Make sure it is completely engaged (connected) so that it does not come out from fuel feed tube.

d. Install quick connector cap to quick connector connection.

(engine side)

• Install so that the arrow mark on the side faces up.

CAUTION:

• Make sure that quick connector and fuel tube are securely

fit into quick connector cap installation groove.

• If quick connector cap cannot be installed smoothly,

quick connector may have not been installed correctly.

Check the connection again.

7. Install fuel feed hose to hose clamp.
8. Installation is in the reverse order of removal after this step.

INSPECTION AFTER INSTALLATION

• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required

quantity, fill to the specified level. Refer to

MA-16, "FOR USA AND CANADA : Fluids and Lubricants"

(United

States and Canada).

• Use procedure below to check for fuel leakage.

• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-

age at connection points.

• Start engine. With engine speed increased, check again for fuel leakage at connection points.

• Run engine to check for unusual noise and vibration.

NOTE:

If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide

may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop

after hydraulic pressure rises.

• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including

engine oil and engine coolant.

• Bleed air from passages in lines and hoses, such as in cooling system.

• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-

ified level, if necessary.

• Summary of the inspection items:

*Power steering fluid, brake fluid, etc.

PBIC2348E

Item

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Transmission/
transaxle fluid

A/T and CVT Models

Leakage

Level/Leakage

Leakage

M/T Models

Level/Leakage

Leakage

Level/Leakage

Other oils and fluids*

Level

Leakage

Level

Fuel

Leakage

Exhaust gas

—

Leakage

—

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INTAKE VALVE TIMING CONTROL

INTAKE VALVE TIMING CONTROL

Intake Valve Timing Control Solenoid Valve

INFOID:0000000009478063

REMOVAL

1. Disconnect harness connector from intake valve timing control solenoid valve.
2. Remove intake valve timing control solenoid valve bolt.
3. Remove intake valve timing control solenoid valve (1) and O-ring (2) from intake valve timing control sole-

noid valve cover.

CAUTION:

Do not reuse O-ring.

INSTALLATION

Installation is in the reverse order of removal.

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.

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