2014 NISSAN TEANA ignition

COMPRESSION PRESSUREEM-27
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• If two adjacent cylinders have respectively low compression pressure and their compression remains low
even after the addition of engine oil, the head gasket is leaking. In such a case, replace the cylinder head
gasket.
8. Install spark plug, ignition co il and harness connectors. Refer to EM-16, "Removal and Installation"
.
Revision: November 20132014 Altima NAM

EM-32
< REMOVAL AND INSTALLATION >[QR25DE]
INTAKE MANIFOLD
2. If studs were removed, install them and tighten to specification.
3. Tighten in numerical order as shown. CAUTION:
After tightening the five bolts in the order shown, the 1, 6
position designates that the fi rst bolt tightened is to be
retightened to specification.
Electric Throttle Control Actuator
1. Install a new O-ring on the electric throttle control actuator. CAUTION:
Do not reuse electric throttl e control actuator O-ring.
2. Tighten the bolts of electric th rottle control actuator equally and
diagonally in several steps in numerical order as shown.
INSPECTION AFTER INSTALLATION
Make sure there are no fuel leaks at 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.
NOTE:
Use mirrors for checking on connections out of the direct line of sight.
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.
Studs : 9.4 N·m (0.96 kg-m, 83 in-lb)
Bolts 1, 2, 3, 4, 5, 6 : 25.0 N·m (2.6 kg-m, 18 ft-lb)
Nuts 4, 5 : 25.0 N·m (2.6 kg-m, 18 ft-lb)
Bolt 7 : 45.0 N·m (4.6 kg-m, 33 ft-lb)
ALBIA0825GB
AWBIA1359ZZ
Revision: November 20132014 Altima NAM

EM-40
< REMOVAL AND INSTALLATION >[QR25DE]
IGNITION COIL
IGNITION COIL
Exploded ViewINFOID:0000000009460486
Removal and InstallationINFOID:0000000009460487
REMOVAL
1. Remove the engine room cover. Refer to
EM-28, "Removal and Installation".
2. Disconnect the harness connector from the ignition coil.
3. Remove the ignition coil. CAUTION:
Do not drop or shock it.
INSTALLATION
Installation is in the reverse order of removal.
1. Ignition coil 2. Spark plug 3. Rocker cover
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EM-44
< REMOVAL AND INSTALLATION >[QR25DE]
FUEL INJECTOR AND FUEL TUBE
c. Align center to insert quick connector straight onto fuel tube.
d. Insert fuel tube into quick connector (1) until the top spool (B) on fuel tubes is inserted completely and the second level spool (C)
is positioned slightly below the quick connector bottom end.
CAUTION:
• Hold at position (A) as show n, when inserting the fuel
tube into the quick connector.
• Carefully align to center to avoid inclined insertion to pre-
vent damage to the O-ring inside the quick connector.
• Insert the fuel tube until you hear a “click” sound and
actually feel the engagement.
• To avoid misidentification of engagement with a similar
sound, be sure to perform the next step.
• Do not reuse O-ring.
e. Before clamping the fuel hose with the hose clamp, pull the quick connector hard by hand, holding at the
(A) position, as shown. Make sure it is completely engaged (connected) so that it does not come off of the
fuel tube.
NOTE:
Recommended pulling force is 50 N (5.1 kg, 11.2 lb).
f. Install quick connector cap (1) over fuel hose side (B) and fuel tube side (A).
NOTE:
Direct arrow mark on quick connector cap (1) to fuel hose side.
5. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Make sure there are no fuel leaks at 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. • Perform procedures for “Throttle Valve Closed Posi tion Learning” after finishing repairs. Refer to EC-
178, "Work Procedure".
• If electric throttle control actuator is replaced, perform procedures for “Idle Air Volume Learning” after
finishing repairs. Refer to EC-179, "Work Procedure"
.
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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ALBIA0890GB
Revision: November 20132014 Altima NAM

ROCKER COVEREM-45
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ROCKER COVER
Exploded ViewINFOID:0000000009460490
Removal and InstallationINFOID:0000000009460491
REMOVAL
1. Disconnect the battery negative terminal. Refer to
PG-73, "Removal and Installation (Battery)".
2. Remove the engine room cover. Refer to EM-28, "Removal and Installation"
.
3. Remove the core support cover. Refer to EXT-17, "Removal and Installation"
.
4. Remove the front air duct. Refer to EM-29, "Removal and Installation"
.
5. Remove the RH engine mount torque rod. Refer to EM-84, "Removal and Installation"
.
6. Support the engine using a suitable jack.
7. Remove harness grounds from the top of the engine mount bracket.
8. Remove the RH engine support bracket. Refer to EM-84, "Removal and Installation"
.
9. Remove the RH engine mounting bracket. Refer to EM-84, "Removal and Installation"
.
10. Disconnect the PCV hose.
11. Remove the ignition coils. Refer to EM-40, "Removal and Installation"
.
12. Loosen the bolts in the numerical order as shown using power tool.
13. Remove the rocker cover and the rocker cover gasket. Discard the rocker cover gasket.
CAUTION:
Do not reuse the rocker cover gasket.
14. Remove the oil filler cap, (if necessary).
INSTALLATION
1. Oil filler cap 2. Rocker cover 3. Rocker cover gasket
A. Refer to INSTALLATION Engine front
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ENGINE ASSEMBLYEM-85
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27. Remove the LH and RH drive shafts. Refer to
FAX-10, "Removal and Installation (LH)", FAX-12, "Removal
and Installation (RH)".
28. Remove the drive belt. Refer to EM-19, "Removal and Installation"
.
29. Remove the front suspension member. Refer to FSU-20, "Removal and Installation"
.
30. Remove the A/C compressor with piping connected and support using suitable wire.
31. Disconnect the transaxle shift controls. Refer to TM-407, "Removal and Installation"
.
32. Install engine slingers into the rear of the cylinder head (A) and front engine mounting bracket holes (B).
• Use engine mounting bolt holes for front slinger.
• Use the holes in the rear of the cylinder head for the rear
slinger.
33. Support engine and transaxle assembly with engine lifti ng equipment from the top with the vehicle raised
on a hoist.
34. Remove the RH engine mount torque rod, RH engine support bracket and RH engine mounting insulator and bracket.
35. Remove LH transaxle mounting insulator through-bolts.
36. Lower the engine and transaxle assembly from the engine compartment using suitable tool.
CAUTION:
• Before and during this procedure, alw ays check if any harnesses are left connected.
• Avoid any damage to, or any oil/grease smearing or spills onto the engine mounting insulators.
37. Remove the starter motor. Refer to STR-22, "QR25DE : Removal and Installation"
.
38. Remove engine and transaxle harness.
39. Separate engine and transaxle. Refer to TM-206, "Exploded View"
.
INSTALLATION
Installation is in the reverse order of removal.
NOTE:
Tighten the transmission bolts to specification. Refer to TM-407, "Removal and Installation"
.
• Do not allow oil to get on mounting insulators. Be careful not to damage mounting insulators.
• If parts have a direction mark (arrow) this indicates front of the vehicle, and the parts must be installed
according to the identification mark.
• Install the RH engine mounting bracket bolts in the following steps:
- First install bolts (A) and (B) loosely.
- Install and tighten the five RH engine mounting bracket bolts to specification in the order as shown.
- : Front
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "FOR USA AND CANADA : Fluids and Lubricants"
.
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak- age at connection points.
• Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration. Slinger bolts (A) : 28 N·m (2.8 kg-m, 21 ft-lb)
Slinger bolts (B) : 48 N·m (4.9 kg-m, 35 ft-lb))
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RH engine mounting bracket bolt : 48.2 N·m (4.9 kg-m, 36 ft-lb)
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Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-89
< UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE]
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9. Remove the ignition coils. Refer to
EM-40, "Removal and Installation".
10. Remove the rocker cover. Refer to EM-45, "Removal and Installation"
.
11. Remove the front cover, timing chain, and balancer unit. Refer to EM-62, "Removal and Installation"
.
12. Remove the cylinder head. Refer to EM-74, "Removal and Installation"
.
13. Remove oil cooler. Refer to LU-16, "Exploded View"
.
14. Remove the knock sensor. CAUTION:
Carefully handle the sensor and do not drop the sensor.
15. Remove crankshaft position sensor (POS) (2) and O-ring (1).
CAUTION:
• Avoid impacts such as a dropping.
• Do not disassemble.
• Keep it away from metal particles.
• Do not place sensor close to magnetic materials.
• Do not reuse O-ring.
16. Remove the piston and connecting rod assemblies.
a. Position the crankshaft and corresponding connecting rod, to be removed, to the bottom dead center stroke.
b. Remove the connecting rod cap. Number the cap so it can be assembled in the same position.
c. Using a hammer handle or similar tool, push the piston and con- necting rod assembly out of the top of the cylinder block. Num-
ber the piston and rod so it can be assembled in the same
position.
• Before removing the piston and connecting rod assembly,
check the connecting rod side clearance. Refer to EM-96,
"Inspection After Disassembly".
17. Remove the connecting rod bearings. If reusing, num ber them so they can be assembled in the same
position and direction.
CAUTION:
• When removing them, note the installation position. Keep them in the correct order.
18. Remove the piston rings from the piston. • Use a piston ring expander.
• Before removing the piston rings, check the piston ring side
clearance. Refer to EM-96, "Inspection After Disassembly"
.
CAUTION:
• When removing the piston rings, be careful not to damage
the piston.
• Be careful not to damage piston rings by expanding them excessively, if reusing them.
: Engine front
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PBIC0259E
PBIC0087E
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PRECAUTIONSEM-123
< PRECAUTION > [VQ35DE]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951676
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for Draining CoolantINFOID:0000000009460515
• Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000009460516
• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000009460517
• When instructed to use special service tools, use the spec ified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or the equiva lent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specif ied, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000009460518
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000009460519
• Use torque wrench to tighten bolts or nuts to specification.
Revision: November 20132014 Altima NAM