2014 NISSAN TEANA engine

ENGINE ROOM COVEREM-143
< REMOVAL AND INSTALLATION > [VQ35DE]
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REMOVAL AND INSTALLATION
ENGINE ROOM COVER
Exploded ViewINFOID:0000000009460537
Removal and InstallationINFOID:0000000009460538
CAUTION:
Do not damage or scratch engine room cover when installing or removing.
REMOVAL
1. Remove front air duct. Refer to EM-144, "Removal and Installation".
2. Remove engine room cover bolts.
3. Remove engine room cover by lifting straight up releasing engine room cover locking tabs.
INSTALLATION
Installation is in the reverse order of removal.
1. Engine room cover A. Engine room cover locking tabs
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Revision: November 20132014 Altima NAM

EM-144
< REMOVAL AND INSTALLATION >[VQ35DE]
AIR CLEANER AND AIR DUCT
AIR CLEANER AND AIR DUCT
Exploded ViewINFOID:0000000009460539
Removal and InstallationINFOID:0000000009460540
REMOVAL
1. Remove engine room cover. Refer to
EM-143, "Removal and Installation".
2. Remove duct sub-cover and front air duct.
3. Disconnect the blow-by hose.
4. Disconnect the tube clamp at the electric throttle control actuator and at the air duct hose and resonator
assembly.
5. Remove air duct hose and resonator assembly.
6. Disconnect mass air flow sensor.
7. Remove mass air flow sensor from air cleaner assembly, as necessary. CAUTION:
Handle mass air flow sensor with care.
• Do not shock it.
• Do not disassemble it.
• Do not touch its sensor.
8. Disconnect transaxle breather hose.
9. Remove air cleaner assembly.
INSPECTION AFTER REMOVAL
Inspect air cleaner case assembly, front air duct, air duct hose and resonator assembly for cracks or tears.
Replace as necessary.
1. Air duct hose and resonator assembly 2. Duct sub-cover 3. Front air duct
4. Air cleaner assembly 5. Grommets 6. Air cleaner mounting bracket
7. Bracket 8. Mass air flow sensor A. To electric throttle control actuator
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Revision: November 20132014 Altima NAM

EM-146
< REMOVAL AND INSTALLATION >[VQ35DE]
INTAKE MANIFOLD COLLECTOR
INTAKE MANIFOLD COLLECTOR
Exploded ViewINFOID:0000000009460541
CAUTION:
Do not remove power valves.
Removal and InstallationINFOID:0000000009460542
REMOVAL
WARNING:
To avoid the danger of being scalded, do no t drain the coolant when the engine is hot.
1. Remove the cowl top. Refer to EXT-24, "Removal and Installation"
.
2. Remove the strut tower bar. Refer to FSU-19, "Exploded View"
.
3. Remove the engine room cover. Refer to EM-143, "Removal and Installation"
.
4. Remove front air duct and air duct hose and resonator assembly. Refer to EM-144, "Removal and Installa-
tion".
5. Partially drain the engine coolant. Refer to CO-36, "Changing Engine Coolant"
.
NOTE:
1. Intake manifold collector 2. Intake manifold collector gasket 3. Electric throttle control actuator gasket
4. Electric throttle control actuator A. Refer to INSTALLATION B. Refer to INSTALLATION
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Revision: November 20132014 Altima NAM

INTAKE MANIFOLD COLLECTOREM-147
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This step is only required when removing electric
throttle control actuator from the vehicle.
6. Remove the electric throttle control actuator bolts in the reverse order as shown and remove the electric throttle control actuator
and position aside.
CAUTION:
• Handle carefully to avoid any shock to the electric throttle
control actuator.
• Do not disassemble.
7. Disconnect the following: • Power brake booster vacuum hose
• Fuel injector harness connectors
• PCV hose
• Electric throttle control actuator harness connector
• EVAP canister purge hose
CAUTION:
Cover any engine openings to avoid the entry of any foreign material.
8. Remove the EVAP canister purge volume solenoi d valve bracket bolt. Position the valve aside.
9. Loosen the intake manifold collector nuts and bolts in the reverse order as shown using power tool, and remove the intake
manifold collector and gasket.
10. If necessary remove the following components: • VIAS control solenoid valve
• EVAP canister purge volume control solenoid valve
INSTALLATION
CAUTION:
Do not reuse intake manifold collector gasket or electric throttle control actuator gasket.
Installation is in the reverse order of removal.
• Tighten intake manifold collector nuts and bolts in the order as shown.
SEM711G
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Nuts and bolts :11.0 N·m (1.1 kg-m, 8 ft-lb)
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Revision: November 20132014 Altima NAM

INTAKE MANIFOLDEM-149
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INTAKE MANIFOLD
Exploded ViewINFOID:0000000009460543
Removal and InstallationINFOID:0000000009460544
REMOVAL
WARNING:
To avoid the danger of being scalded, do no t drain the coolant when the engine is hot.
1. Release the fuel pressure. Refer to EC-687, "Work Procedure"
.
2. Disconnect the battery negative terminal. Refer to PG-73, "Removal and Installation (Battery)"
.
3. Remove intake manifold collector. Refer to EM-146, "Removal and Installation"
.
4. Disconnect fuel tube quick connector (1) at fuel tube (3) side. Refer to EM-163, "Removal and Installation"
.
5. Remove fuel injector and fuel tube. Refer to EM-163, "Removal and Installation"
.
1. Intake manifold 2. Intake manifold gaskets A. Refer to INSTALLATION
Engine front
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(2) : Quick connector release
(A) : Holding position
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Revision: November 20132014 Altima NAM

EM-150
< REMOVAL AND INSTALLATION >[VQ35DE]
INTAKE MANIFOLD
6. Loosen the bolts in the order as shown, and remove the intake
manifold.
INSPECTION AFTER REMOVAL
Surface Distortion
• Using straightedge and feeler gauge, inspect the surface distortion of the intake manifold. Refer to EM-146, "Removal and Installa-
tion".
INSTALLATION
Installation is in the reverse order of removal. Fo llow the procedure below for specific tightening sequences
and procedures.
CAUTION:
Do not reuse intake manifold gaskets.
• Install intake manifold nuts and bolts in two steps in the numerical order as shown.
NOTE:
After installation, it is necessary to re-calibrate the electric throttle control actuator as follows:
1. Perform the "Throttle Valve Closed Position Learning" when harness connector of the electric throttle con-
trol actuator is disconnected. Refer to EC-682, "Work Procedure"
.
2. Perform the "Idle Air Volume Learning" when the electric throttle control actuator is replaced. Refer to EC-
683, "Work Procedure".
3. Install the quick connector. Refer to EM-163, "Removal and Installation"
.
INSPECTION AFTER INSTALLATION
Make sure there are no fuel leaks at the connections as follows:
1. Apply fuel pressure to fuel lines by turning ignition switch ON (with engine stopped). Then check for fuel leaks at connections.
2. Start the engine and rev it up and check for fuel leaks at connections. WARNING:
Do not touch engine immediately after stopping as engine is extremely hot.
NOTE:
Use mirrors for checking on connections out of the direct line of sight.
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Standard : 0.1 mm (0.004 in)
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Step 1 : 7.3 N·m (0.74 kg-m, 65 in-lb)
Step 2 : 25.5 N·m (2.6 kg-m, 19 ft-lb)
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Revision: November 20132014 Altima NAM

EM-152
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EXHAUST MANIFOLD AND THREE WAY CATALYST
Removal and Installation (LH)
INFOID:0000000009460546
REMOVAL
WARNING:
• Perform the work when the exhaust system has completely cooled down.
• When removing the front and rear engine mounting th rough bolts and nuts, lift the engine up slightly
for safety.
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
1. Remove the air cleaner assembly, and air duct hose and resonator assembly. Refer to EM-144, "Removal
and Installation".
2. Remove the battery and battery tray assembly. Refer to PG-74, "Removal and Installation (Battery Tray)"
.
3. Remove the engine under cover. Refer to EXT-28, "Removal and Installation"
.
4. Remove the radiator assembly. Refer to CO-41, "Removal and Installation"
.
5. Remove the engine cooling fan shroud and motor assembly. Refer to CO-42, "Removal and Installation"
.
6. Remove the front exhaust tube. Refer to EX-10, "Exploded View"
.
7. Remove the LH three way catalyst support brackets.
8. Remove heated oxygen sensor 2 (bank 2), air fuel ratio (A/F) sensor 1 (bank 2).
a. Remove harness connector of each sensor, and di sconnect the harness from the bracket and middle
clamp.
b. Remove both heated oxygen sensor 2 and air fuel ratio (A/F) sensor 1 using Tool.
CAUTION:
• Be careful not to damage heated oxygen sen sors 2 or air fuel ratio (A/F) sensors 1.
• Discard any heated oxygen sensor 2 which has been dropped from a height of more than 0.5 m
(19.7 in) onto a hard surface such as a co ncrete floor; replace with a new sensor.
9. Remove exhaust manifold heat shield (LH) and three way catalyst heat shields (LH) using power tool.
10. Remove the three way catalyst (bank 2) by loosening the bolts first and then removing the nuts and through bolts.
11. Loosen and remove the exhaust manifold nuts in the reverse order as shown.
NOTE:
Number 7 and 8 are not applicable to removal.
12. Remove the exhaust manifold (LH) and gasket.
INSPECTION AFTER REMOVAL
Surface Distortion Tool numbers : KV10114400 (J-38365)
: KV991J0050 (J-44626)
: Engine front
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Revision: November 20132014 Altima NAM

EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-153
< REMOVAL AND INSTALLATION > [VQ35DE]
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• Use a reliable straightedge and f
eeler gauge to check the flatness
of the exhaust manifold mating surfaces.
• Replace the exhaust manifold if the measurement exceeds specifi- cations.
INSTALLATION
Installation is in the reverse order of removal.
1. Install the studs in the exhaust manifold (if removed), and tighten to specification.
2. Install the exhaust manifold gasket in the direction shown. CAUTION:
Do not reuse exhaust manifold gaskets.
3. Install the exhaust manifold (LH) nuts and tighten to specifica- tion in the order shown.
NOTE:
Number 7 and 8 are tightened a second time.
CAUTION:
• Before installing a heated oxyg en sensor 2 or air fuel ratio (A/F) sensor 1, clean the exhaust
manifold threads using the oxyg en sensor thread cleaner tool and apply anti-seize lubricant.
• Do not over-tighten the air fuel ratio (A/F) senso r 1 or heated oxygen sensors 2. Doing so may
cause damage.
Removal and Installation (RH)INFOID:0000000009460547
REMOVAL
WARNING: Limit : 0.3 mm (0.012 in)
PBIC1173E
Exhaust manifold studs : 15.4 N·m (1.6 kg-m, 11 ft-lb)
(A) : Bank 1
(B) : Triangle press
(C) : Bank 2
: Engine front
PBIC4954E
: Engine front
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Oxygen sensor thread cleaner : (J-43897-18)
Oxygen sensor thread cleaner : (J-43897-12)
Tool numbers : KV10114400 (J-38365) : KV991J0050 (J-44626)
Revision: November 20132014 Altima NAM