Nissan Frontier. Manual - part 709

AIR CLEANER AND AIR DUCT

EM-25

< REMOVAL AND INSTALLATION >

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REMOVAL AND INSTALLATION

AIR CLEANER AND AIR DUCT

Exploded View

INFOID:0000000009478049

Removal and Installation

INFOID:0000000009478050

NOTE:

Add mating marks as necessary for easier installation.

REMOVAL

1. Remove the breather hose from the air duct.
2. Disconnect mass air flow sensor harness connector.
3. Loosen the air duct clamps and remove the air duct.
4. Remove the air duct and resonator assembly bolts and remove air duct and resonator assembly.

• Remove resonator in fender lifting left fender protector, as necessary.

5. Remove air cleaner case.
6. Remove mass air flow sensor, if necessary.

INSPECTION AFTER REMOVAL

Inspect air duct and air duct and resonator assembly for cracks or tears.

• Replace air duct and air duct and resonator assembly, if necessary.

INSTALLATION

Installation is in the reverse order of removal.

1.

Air cleaner case

2.

Air duct and resonator assembly

3.

Air duct

4.

Intake manifold assembly

5.

Mass air flow sensor

6.

Air cleaner filter

AWBIA1525ZZ

EM-26

< REMOVAL AND INSTALLATION >

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AIR CLEANER AND AIR DUCT

• Align marks. Attach each joint. Tighten clamps firmly.

• Install air duct and resonator assembly to air cleaner case by aligning "LOCK-UNLOCK" upward.

INTAKE MANIFOLD

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< REMOVAL AND INSTALLATION >

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INTAKE MANIFOLD

Exploded View

INFOID:0000000009478051

Removal and Installation

INFOID:0000000009478052

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 fuel pressure. Refer to 

EC-466, "Fuel Pressure Check"

.

1.

Vacuum hose

2.

Vacuum hose adapter

3.

O–ring

4.

Vacuum hose

5.

EVAP canister purge volume control 
solenoid valve

6.

Vacuum hose

7.

Service port

8.

Collar

9.

Grommet

10. Intake manifold support

11. Vacuum hose

12. Gasket

13. Intake manifold

14. Fuel tube protector

15. Air cleaner filter

16. Air cleaner case

17. PCV hose

18. Gasket

19. PCV hose

20. Water hose

21. Water hose

22. Air duct

23. Electric throttle control actuator

24. Mass air flow sensor

A.

To vacuum pipe (EVAP canister)

B.

To brake booster

C.

To PCV valve

D.  To heater outlet

E.

To heater pipe

F.

To rocker cover

Engine front

AWBIA1012GB

EM-28

< REMOVAL AND INSTALLATION >

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INTAKE MANIFOLD

2. Disconnect battery negative terminal. Refer to 

PG-83, "Removal and Installation"

.

3. Partially drain engine coolant. Refer to 

CO-12, "Changing Engine Coolant"

.

4. Remove air cleaner case, air cleaner filter and air duct and resonator assembly. Refer to 

EM-25,

"Exploded View"

.

5. Disconnect water hoses from electric throttle control actuator.

CAUTION:

• Perform this step when engine is cold.

• Do not spill engine coolant on drive belt.

6. Remove mass air flow sensor from intake manifold.

CAUTION:

Handle the mass air flow sensor with care:

• Do not shock it.

• Do not disassemble it.

• Do not touch the internal sensor.

7. Remove quick connector cap, and disconnect quick connector

at the engine side. Refer to 

EM-39

.

8. Remove electric throttle control actuator as follows:
a. Disconnect harness connector.
b. Loosen bolts in reverse order as shown, and remove electric

throttle control actuator and gasket. 

CAUTION:

• Handle carefully to avoid any shock to electric throttle

control actuator.

• Do not disassemble.

9. Disconnect harness, vacuum hoses and PCV hoses from intake manifold, and move them aside.
10. Remove intake manifold support.
11. Loosen nuts and bolts in reverse order as shown, and remove

intake manifold, fuel tube protector and gasket.

CAUTION:

• Cover engine openings to avoid entry of foreign materi-

als.

• Do not disassemble intake manifold.

NOTE:

Disregard No. 6 when loosening.

12. Remove EVAP canister purge volume control solenoid valve and vacuum hose adapter from intake mani-

fold, if necessary.

13. Disconnect sub-harness from fuel injector. Refer to 

EM-39

.

LBIA0450E

PBIC2987E

PBIC2988E