Nissan Frontier. Instruction — part 709
AIR CLEANER AND AIR DUCT
EM-25
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REMOVAL AND INSTALLATION
AIR CLEANER AND AIR DUCT
Exploded View
INFOID:0000000009478049
Removal and Installation
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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 >
[QR25DE]
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
EM-27
< REMOVAL AND INSTALLATION >
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INTAKE MANIFOLD
Exploded View
INFOID:0000000009478051
Removal and Installation
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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
.
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 >
[QR25DE]
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
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
.
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
.
LBIA0450E
PBIC2987E
PBIC2988E
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