checking oil NISSAN TEANA 2014 Service Manual
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![NISSAN TEANA 2014 Service Manual
EC-320
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0300, P0301,
P0302, P0303, P0304 MISFIRE
4.CHECK FUNCTION OF FUEL INJECTOR
1. Start engine and let engine idle.
2. Listen to each fuel injector operating s](/img/5/57390/w960_57390-1319.png "NISSAN TEANA 2014 Service Manual
EC-320
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0300, P0301,
P0302, P0303, P0304 MISFIRE
4.CHECK FUNCTION OF FUEL INJECTOR
1. Start engine and let engine idle.
2. Listen to each fuel injector operating s")
EC-320
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0300, P0301,
P0302, P0303, P0304 MISFIRE
4.CHECK FUNCTION OF FUEL INJECTOR
1. Start engine and let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Perform trouble diagnosis for FUEL INJECTOR. Refer
to EC-505, "Diagnosis Procedure"
.
5.CHECK FUNCTION OF IGNITION COIL-1
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoi d the electrical discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is generated between the spark plug and the grounded metal por-
tion.
CAUTION:
• Do not approach to the spar k plug and the ignition coil
within 50 cm (19.7 in). Be car eful not to get an electrical
shock while checking, becau se the electrical discharge
voltage becomes 20 kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the sp ark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES >> GO TO 9.
NO >> GO TO 6.
6.CHECK FUNCTION OF IGNITION COIL-2
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded metal portion.
Is the inspection result normal?
Clicking noise should be heard.
PBIB3332E
Spark should be generated.
JMBIA0066GB
Spark should be generated.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
Page 1335 of 4801
![NISSAN TEANA 2014 Service Manual
P0420 THREE WAY CATALYST FUNCTIONEC-335
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect](/img/5/57390/w960_57390-1334.png "NISSAN TEANA 2014 Service Manual
P0420 THREE WAY CATALYST FUNCTIONEC-335
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect")
P0420 THREE WAY CATALYST FUNCTIONEC-335
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -
0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
• Do not approach to the spar k plug and the ignition coil
within 50 cm (19.7 in). Be car eful not to get an electrical
shock while checking, becau se the electrical discharge
voltage becomes 20 kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the sp ark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 7.
7.CHECK FUNCTION OF IGNITION COIL-2
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded metal portion.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Check ignition coil, power transistor and their circuits. Refer to EC-511, "Diagnosis Procedure"
.
8.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc. Refer to EM-16,
"Removal and Installation".
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-111, "Standard and Limit"
.
NO >> Repair or clean spark plug. Refer to EM-16, "Removal
and Installation". Then GO TO 9
9.CHECK FUNCTION OF IGNITION COIL-3
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-111, "Standard
and Limit".
Spark should be generated.
JMBIA0066GB
Spark should be generated.
SEF156I
Spark should be generated.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
Page 1514 of 4801
![NISSAN TEANA 2014 Service Manual
EC-514
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
IGNITION SIGNAL
9.CHECK IGNITION COIL WITH POWER TRANSISTOR
Check ignition coil with power transistor. Refer to EC-514, "Component Inspection (Ignition Coil](/img/5/57390/w960_57390-1513.png "NISSAN TEANA 2014 Service Manual
EC-514
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
IGNITION SIGNAL
9.CHECK IGNITION COIL WITH POWER TRANSISTOR
Check ignition coil with power transistor. Refer to EC-514, \"Component Inspection (Ignition Coil")
EC-514
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
IGNITION SIGNAL
9.CHECK IGNITION COIL WITH POWER TRANSISTOR
Check ignition coil with power transistor. Refer to EC-514, "Component Inspection (Ignition Coil with Power
Transistor)".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-40, "Removal and Installa-
tion".
Component Inspection (Ignition Coil with Power Transistor)INFOID:0000000009462447
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-1
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as per the following.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-40, "Removal and Installa-
tion".
2.CHECK IGNITION COIL WITH POWER TRANSISTOR-2
CAUTION:
Perform the following procedure in a place with no combustible objects and good ventilation.
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.
4. Start engine.
5. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
6. Turn ignition switch OFF.
7. Remove all ignition coil harness connectors to avoi d the electrical discharge from the ignition coils.
8. Remove ignition coil and spark plug of the cylinder to be checked.
9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
12. Crank engine for approximately 3 seconds, and check whether spark is generated between the spark plug and the grounded
metal portion.
CAUTION:
• During the operation, always stay 0.5 m (19.7 in) or more
away from the spark plug and the ignition coil. Be careful
not to get an electrical s hock while checking, because the
electrical discharge voltage becomes 20 kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
Ignition coil
Resistance Ω [at 25 °C (77 °F)]
+-
Terminal No. (Polarity)
1 2 Except 0 or
∞
3 Except 0
23
Spark should be generated.
JMBIA0066GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
Page 1811 of 4801
![NISSAN TEANA 2014 Service Manual
P0300, P0301, P0302, P0303, P0304, P0305, P0306 MISFIRE
EC-811
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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3. Check that each circuit produces a momentary engine speed drop.](/img/5/57390/w960_57390-1810.png "NISSAN TEANA 2014 Service Manual
P0300, P0301, P0302, P0303, P0304, P0305, P0306 MISFIRE
EC-811
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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3. Check that each circuit produces a momentary engine speed drop.")
P0300, P0301, P0302, P0303, P0304, P0305, P0306 MISFIRE
EC-811
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3. Check that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
YES >> GO TO 9.
NO >> GO TO 4.
4.CHECK FUNCTION OF FUEL INJECTOR
1. Start engine and let it idle.
2. Listen to each fuel injector make operation sound.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Perform trouble diagnosis for FUEL INJECTOR, refer to
EC-962, "Diagnosis Procedure"
.
5.CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Perform the following procedure in a place with no combustible objects and good ventilation.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse in IPDM E/R to release fuel pressure. NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.
3. Start engine.
4. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -
0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
11. Crank engine for approximately 3 seconds, and check whether
spark is generated between the spark plug and the grounded
metal portion.
CAUTION:
• During the operation, always stay 0.5 m (19.7 in) or more away from the spark plug and the ignition coil. Be careful
not to get an electrical sh ock while checking, because the
electrical discharge voltage becomes 20 kV or more.
• It might damage the ignition coil if the gap of more than 17 mm (0.66 in) is made.
NOTE:
When the gap is less than 13 mm (0.52 in), a spark might be generated even if the coil is malfunc-
tioning.
Is the inspection result normal?
YES >> GO TO 9.
NO >> GO TO 6.
6.CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a non-malfunctioning spark plug. Clicking sound should be heard.
PBIB3332E
Spark should be generated.
JMBIA0066GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
Page 1826 of 4801
![NISSAN TEANA 2014 Service Manual
EC-826
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0420, P0430 THREE WAY CATALYST FUNCTION
Is the inspection result normal?
YES >> GO TO 6.
NO >> Perform EC-962, "Diagnosis Procedure"
.
6.CHECK FUNCTION OF](/img/5/57390/w960_57390-1825.png "NISSAN TEANA 2014 Service Manual
EC-826
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0420, P0430 THREE WAY CATALYST FUNCTION
Is the inspection result normal?
YES >> GO TO 6.
NO >> Perform EC-962, \"Diagnosis Procedure\"
.
6.CHECK FUNCTION OF")
EC-826
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0420, P0430 THREE WAY CATALYST FUNCTION
Is the inspection result normal?
YES >> GO TO 6.
NO >> Perform EC-962, "Diagnosis Procedure"
.
6.CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Perform the following procedure in a place with no combustible objects and good ventilation.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse in IPDM E/R to release fuel pressure. NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.
3. Start engine.
4. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoi d the electrical discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -
0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
11. Crank engine for approximately 3 seconds, and check whether
spark is generated between the spark plug and the grounded
metal portion.
CAUTION:
• During the operation, always stay 0.5 m (19.7 in) or more away from the spark plug and the ignition coil. Be careful
not to get an electrical s hock while checking, because the
electrical discharge voltage becomes 20 kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the sp ark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 7.
7.CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for approximately 3 seconds, and rec heck whether spark is generated between the spark
plug and the grounded metal portion.
ECM
Voltag e
+–
Connector Terminal Connector Terminal
F78 33
E32 128 Battery voltage
44
45
46
47
48
Spark should be generated.
JMBIA0066GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
Page 1970 of 4801
![NISSAN TEANA 2014 Service Manual
EC-970
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
IGNITION SIGNAL
Is the inspection result normal?
YES >> Check intermittent incident. Refer to
GI-43, "Intermittent Incident".
NO >> Replace malfunctioning ig](/img/5/57390/w960_57390-1969.png "NISSAN TEANA 2014 Service Manual
EC-970
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
IGNITION SIGNAL
Is the inspection result normal?
YES >> Check intermittent incident. Refer to
GI-43, \"Intermittent Incident\".
NO >> Replace malfunctioning ig")
EC-970
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
IGNITION SIGNAL
Is the inspection result normal?
YES >> Check intermittent incident. Refer to
GI-43, "Intermittent Incident".
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-162, "Removal and Instal-
lation LH" or EM-162, "Removal and Installation RH".
Component Inspection (Igniti on Coil with Power Transistor)INFOID:0000000009462850
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-I
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as per the following.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-162, "Removal and Instal-
lation LH" or EM-162, "Removal and Installation RH".
2.CHECK IGNITION COIL WITH POWER TRANSISTOR-II
CAUTION:
Perform the following procedure in a place with no combustible objects and good ventilation.
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.
4. Start engine.
5. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
6. Turn ignition switch OFF.
7. Remove all ignition coil harness connectors to avoi d the electrical discharge from the ignition coils.
8. Remove ignition coil and spark plug of the cylinder to be checked.
9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
12. Crank engine for approximately 3 seconds, and check whether spark is generated between the spark plug and the grounded
metal portion.
CAUTION:
• During the operation, always stay 0.5 m (19.7 in) or more
away from the spark plug and the ignition coil. Be careful
not to get an electrical s hock while checking, because the
electrical discharge voltage becomes 20 kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the sp ark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES >> INSPECTION END
Terminal No. (Polarity) Resistance Ω [at 25 °C (77 °F)]
1 and 2 Except 0 or ∞
1 and 3 Except 0
2 and 3
Spark should be generated.
JMBIA0066GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
Page 1999 of 4801
EM-1
ENGINE
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SECTION EM
A
EM
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CONTENTS
ENGINE MECHANICAL
QR25DE
PRECAUTION ................ ...............................
4
PRECAUTIONS .............................................. .....4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
Precaution for Draining Coolant ................................4
Precaution for Disconnecting Fuel Piping .................4
Precaution for Removal and Disassembly ................4
Precaution for Inspection, Repair and Replace-
ment .................................................................... ......
4
Special Cautions to Ensure the Safe Disposal of
Sodium-filled Exhaust Valves .............................. ......
5
Precaution for Assembly and Installation ..................6
Parts Requiring Angular Tightening ..........................6
Precaution for Liquid Gasket ............................... ......6
PREPARATION ............................................8
PREPARATION .............................................. .....8
Special Service Tool ........................................... ......8
Commercial Service Tool ........................................10
SYMPTOM DIAGNOSIS ..............................13
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ ....
13
NVH Troubleshooting - Engine Noise ................. ....13
Use the Chart Below to Help You Find the Cause
of the Symptom ................................................... ....
14
PERIODIC MAINTENANCE .........................16
SPARK PLUG .. .............................................. ....16
Exploded View .................................................... ....16
Removal and Installation .........................................16
DRIVE BELTS ................................................ ....19
Exploded View .................................................... ....19
Checking Drive Belts ...............................................19
Tension Adjustment ............................................. ....19
Removal and Installation .........................................19
Removal and Installation of Drive Belt Auto-ten-
sioner ................................................................... ....
20
AIR CLEANER FILTER .....................................22
Exploded View .........................................................22
Removal and Installation .........................................22
CAMSHAFT VALVE CLEARANCE ..................23
Camshaft valve clearance .......................................23
COMPRESSION PRESSURE ...........................26
Compression pressure ............................................26
REMOVAL AND INSTALLATION ...............28
ENGINE ROOM COVER ...................................28
Exploded View ..................................................... ....28
Removal and Installation .........................................28
AIR CLEANER AND AIR DUCT .......................29
Exploded View .........................................................29
Removal and Installation .........................................29
INTAKE MANIFOLD .........................................30
Exploded View .........................................................30
Removal and Installation .........................................30
EXHAUST MANIFOLD AND THREE WAY
CATALYST ........................................................
33
Exploded View ..................................................... ....33
Removal and Installation .........................................33
OIL PAN AND OIL STRAINER .........................36
Exploded View .........................................................36
Removal and Installation .........................................36
IGNITION COIL .................................................40
Exploded View .........................................................40
Removal and Installation .........................................40
FUEL INJECTOR AND FUEL TUBE ................41
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EM-2
Exploded View ........................................................41
Removal and Installation ........................................41
ROCKER COVER ..............................................45
Exploded View ..................................................... ...45
Removal and Installation ........................................45
CAMSHAFT .......................................................47
Exploded View ..................................................... ...47
Removal and Installation ........................................47
Inspection After Installation ................................. ...56
VALVE TIMING CONTROL ............................ ...58
Exploded View ..................................................... ...58
Intake Valve Timing Intermediate Lock Control
Solenoid Valve, Intake Va lve Timing Control Sole-
noid Valve, and Exhaust Valve Timing Control So-
lenoid Valve ......................................................... ...
58
Valve Timing Control Cover ....................................59
TIMING CHAIN ............................................... ...61
Exploded View ..................................................... ...61
Removal and Installation ........................................62
OIL SEAL ...........................................................70
Removal and Installation of Valve Oil Seal .......... ...70
Removal and Installation of Front Oil Seal .............71
Removal and Installation of Rear Oil Seal ..............72
CYLINDER HEAD ..............................................74
Exploded View ..................................................... ...74
Removal and Installation ........................................74
Disassembly and Assembly ....................................76
Inspection After Disassembly .................................78
UNIT REMOVAL AND INSTALLATION .. ...83
ENGINE ASSEMBLY ...................................... ...83
Exploded View ..................................................... ...83
Removal and Installation ........................................84
UNIT DISASSEMBLY AND ASSEMBLY ....87
CYLINDER BLOCK ........................................ ...87
Exploded View ..................................................... ...87
Disassembly and Assembly ....................................88
Inspection After Disassembly .................................96
HOW TO SELECT PISTON AND BEARING .. .105
How to Select Piston and Bearing ....................... ..105
SERVICE DATA AND SPECIFICATIONS
(SDS) .............. ............................................
111
SERVICE DATA AND SPECIFICATIONS
(SDS) ............................................................... .
111
Standard and Limit .............................................. ..111
VQ35DE
PRECAUTION .............. ..............................
123
PRECAUTIONS .............................................. .123
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
123
Precaution for Draining Coolant ............................123
Precaution for Disconnecting Fuel Piping .............123
Precaution for Removal and Disassembly ............123
Precaution for Inspection, Repair and Replace-
ment ..................................................................... .
123
Precaution for Assembly and Installation ..............123
Parts Requiring Angular Tightening ..................... .124
Precaution for Liquid Gasket .................................124
PREPARATION .........................................126
PREPARATION .............................................. ..126
Special Service Tool ............................................ .126
Commercial Service Tool ......................................127
SYSTEM DESCRIPTION ..........................130
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING ......................... ..
130
NVH Troubleshooting - Engine Noise .................. .130
Use the Chart Below to Help You Find the Cause
of the Symptom .................................................... .
131
PERIODIC MAINTENANCE ......................132
SPARK PLUG ... .............................................. ..132
Exploded View ..................................................... .132
Removal and Installation .......................................132
DRIVE BELTS ................................................ ..134
Exploded View ..................................................... .134
Checking Drive Belts .............................................134
Tension Adjustment ..............................................134
Removal and Installation .......................................134
Removal and Installation of Drive Belt Auto-ten-
sioner ................................................................... .
135
AIR CLEANER FILTER ....................................137
Exploded View ..................................................... .137
Removal and Installation .......................................137
CAMSHAFT VALVE CLEARANCE ............... ..138
Valve Clearance ................................................... .138
COMPRESSION PRESSURE ..........................142
On-Vehicle Service .............................................. .142
REMOVAL AND INSTALLATION .............143
ENGINE ROOM COVER ................................ ..143
Exploded View ..................................................... .143
Removal and Installation .......................................143
AIR CLEANER AND AIR DUCT ..................... ..144
Exploded View ..................................................... .144
Removal and Installation .......................................144
INTAKE MANIFOLD COLLECTOR ............... ..146
Exploded View ..................................................... .146
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![NISSAN TEANA 2014 Service Manual
EM-26
< PERIODIC MAINTENANCE >[QR25DE]
COMPRESSION PRESSURE
COMPRESSION PRESSURE
Compression pressureINFOID:0000000009460475
CHECKING COMPRESSION PRESSURE
1. Warm up the engine to full operating temp](/img/5/57390/w960_57390-2023.png "NISSAN TEANA 2014 Service Manual
EM-26
< PERIODIC MAINTENANCE >[QR25DE]
COMPRESSION PRESSURE
COMPRESSION PRESSURE
Compression pressureINFOID:0000000009460475
CHECKING COMPRESSION PRESSURE
1. Warm up the engine to full operating temp")
EM-26
< PERIODIC MAINTENANCE >[QR25DE]
COMPRESSION PRESSURE
COMPRESSION PRESSURE
Compression pressureINFOID:0000000009460475
CHECKING COMPRESSION PRESSURE
1. Warm up the engine to full operating temperature.
2. Release the fuel pressure. Refer to EC-182, "Work Procedure"
.
3. Remove the ignition coil and spark plug from each cylinder. Refer to EM-40, "Removal and Installation"
.
4. Connect engine tachometer (not required in use of CONSULT).
5. Disconnect the fuel injector harness connector to avoid any residual fuel injection during the measure- ment.
6. Install the compression tester with the adapter into the spark plug hole.
• Use compression tester whose end (a) (rubber portion) is smaller than 20 mm (0.79 in) in diameter. Otherwise, it may be caught by
cylinder head during removal.
7. With the accelerator pedal fully depressed, turn the ignition switch to the “START” position to crank over
the engine. When the gauge pointer stabilizes, read the compression pressure and engine rpm. Perform
these steps to check each cylinder.
Unit: kPa (kg/cm2, psi) / rpm
CAUTION:
Always use a fully charged battery to ob tain specified engine cranking speed.
• If the engine speed is out of specified rpm range, check the battery. Check engine speed again with a fully
charged battery.
• If compression pressure is below minimum value, check valve clearances and parts associated with com- bustion chamber (valve, valve seat, piston, piston ri ng, cylinder bore, cylinder head, cylinder head gasket).
After the checking, measure compression pressure again.
• If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug hole of the cylinder to re-check it for compression.
• If the added engine oil improves the compression, the piston rings may be worn or damaged. Check the pis- ton rings and replace if necessary.
• If the compression pressure remains at low level des pite the addition of engine oil, the valves may be mal-
functioning. Check the valves for damage. Replace the valve or valve seat accordingly.
ALBIA0917GB
JPBIA0171ZZ
Standard Minimum Difference limit between cylinders
1410 (14.4, 204.5) / 250 1220 (12.4, 176.9) / 250 100 (1.0, 14) / 250
Revision: November 20132014 Altima NAM
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![NISSAN TEANA 2014 Service Manual
FUEL INJECTOR AND FUEL TUBEEM-43
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C
D E
F
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O• Handle O-rings with bare hands only. Do not wear gloves.
• Do not clean O-rings with solv](/img/5/57390/w960_57390-2040.png "NISSAN TEANA 2014 Service Manual
FUEL INJECTOR AND FUEL TUBEEM-43
< REMOVAL AND INSTALLATION > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O• Handle O-rings with bare hands only. Do not wear gloves.
• Do not clean O-rings with solv")
FUEL INJECTOR AND FUEL TUBEEM-43
< REMOVAL AND INSTALLATION > [QR25DE]
C
D E
F
G H
I
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K L
M A
EM
NP
O• Handle O-rings with bare hands only. Do not wear gloves.
• Do not clean O-rings with solvent.
• Make sure that O-ring and its mating part are free of foreign material.
• Be careful not to scratch O- rings during installation.
• Do not twist or stretch the O-ring. If the O-ring was stretched while it is attached, do not insert it
into the fuel tube immediately.
2. Install the fuel injector (5) into the fuel tube (1) with the following procedure:
(2): O-ring (black)
(4): O-ring (green)
a. Insert the new clip (3) into the clip mounting groove (F) on fuel injector (5).
• Insert the clip (3) so that prot rusion (E) of fuel injector (5)
matches cutout (C) of the clip (3).
CAUTION:
• Do not reuse clip (3), replace it with a new one.
• Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector (5) into fuel tube (1) with clip (3) attached. • Insert fuel injector (5) so that protrusion (A) of fuel tube (1)
matches cut-out (B) of the clip (3).
• Check that fuel tube flange (G) is securely fixed in flange
groove (D) on the clip (3).
c. Check that installation is comple te by checking that fuel injector
(5) does not rotate or come off.
3. Install fuel tube and fuel injector assembly with the following procedure.
a. Insert the tip of each fuel injector into intake manifold.
b. Tighten the bolts to specification in the numerical order as shown.
CAUTION:
After properly connecting fu el tube assembly to injector
and fuel hose, check co nnection for fuel leaks.
4. Connect the fuel hose quick connector.
a. Make sure no foreign substances are deposited in and around the fuel tube and quick connector, and there is no damage to them.
b. Thinly apply new engine oil around the fuel tube tip end. Fuel tube side : Black
Nozzle side : Green
AWBIA1262GB
AWBIA1261GB
Revision: November 20132014 Altima NAM