Nissan Frontier. Instruction — part 738

AIR CLEANER AND AIR DUCT

EM-141

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AIR CLEANER AND AIR DUCT

Exploded View

INFOID:0000000009478107

Removal and Installation

INFOID:0000000009478108

NOTE:

Add marks as necessary for easier installation.

REMOVAL

1. Remove the engine room cover using power tool. Refer to

EM-140, "Removal and Installation"

.

2. Disconnect the harness connector from mass air flow sensor.
3. Disconnect crankcase ventilation hose.
4. Remove the air duct and resonator assembly and air cleaner case (upper).
5. Remove air cleaner filter and air cleaner case (lower).
6. If necessary remove the mass air flow sensor from the air cleaner case (upper).

CAUTION:

Handle mass air flow sensor with care.

• Do not shock it.

• Do not disassemble it.

• Do not touch its sensor.

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.

Mass air flow sensor

5.

Air duct and resonator assembly

Front

AWBIA1521ZZ

EM-142

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INTAKE MANIFOLD COLLECTOR

INTAKE MANIFOLD COLLECTOR

Exploded View

INFOID:0000000009478109

Removal and Installation

INFOID:0000000009478110

NOTE:

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

ing.

REMOVAL

1. Remove engine room cover using power tool. Refer to

EM-140, "Removal and Installation"

.

2. Remove air duct and resonator assembly. Refer to

EM-141, "Removal and Installation"

.

3. Remove electric throttle control actuator as follows:
a. Partially drain engine coolant. Refer to

CO-40, "Changing Engine Coolant"

.

WARNING:

To avoid the danger of being scalded, do not 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 electric throttle control actuator.

1.

Vacuum tank

2.

VIAS control solenoid valve

3.

Vacuum hose

4.

Intake manifold collector support

5.

Water hose

6.

Electric 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

INTAKE MANIFOLD COLLECTOR

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c. Disconnect harness connector.
d. Loosen bolts in reverse order as shown.

CAUTION:

• Handle carefully to avoid any shock to electric throttle

control actuator.

• Do not disassemble.

4. Remove the following parts:

• Vacuum hose (to brake booster)

• PCV hose

5. Loosen bolts in reverse order as shown to remove intake mani-

fold collector support.

6. Disconnect EVAP hoses and harness connector from EVAP canister purge volume control solenoid valve.
7. Remove EVAP canister purge volume control solenoid valve.
8. Remove VIAS control solenoid valve and vacuum tank.

• Add mating marks as necessary for easier installation.

9. 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

EM-144

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INTAKE MANIFOLD COLLECTOR

• Tighten nuts and bolts in numerical order as shown.

Electric Throttle Control Actuator

• Tighten bolts in numerical order as shown.

• Perform the “Throttle Valve Closed Position Learning” when har-

ness connector of electric throttle control actuator is disconnected.

Refer to

EC-591, "Throttle Valve Closed Position Learning"

.

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

Position Learning” when electric throttle control actuator is

replaced. Refer to

EC-591, "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 (0.7 kg-m, 61 in-lb)

PBIC2877E

PBIC2875E