2014 NISSAN TEANA check engine

ENGINE MAINTENANCE (QR25DE)MA-13
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ENGINE MAINTENANCE (QR25DE)
DRIVE BELTS
DRIVE BELTS : Checking Drive BeltsINFOID:0000000009464542
WARNING:
Inspect the drive belt only when the engine is stopped.
1. Visually check entire drive belt for wear, damage or cracks.
2. Check that the drive belt auto-tensioner indicator is within the possible use range.
NOTE:
• When new drive belt is installed, the drive belt aut o-tensioner indicator should be within the new drive
belt range.
• Check the drive belt auto-tensioner indicator when the engine is cold.
3. If the drive belt auto-tensioner indicator is out of the possible use range or belt is damaged, replace drive
belt.
DRIVE BELTS : Tension AdjustmentINFOID:0000000009464543
Belt tension is not manually adjustable, it is aut omatically adjusted by the drive belt auto-tensioner.
ENGINE COOLANT
ENGINE COOLANT : System InspectionINFOID:0000000009464544
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly push down and
turn it a quarter turn to allow built-up pressure to escape. Carefully remove the cap by pushing it down
and turning it all the way.
CHECKING COOLING SYSTEM HOSES
Check hoses for the following:
• Improper attachment
• Leaks
•Cracks
• Damage
1. Generator pulley 2. Water pump pulley 3. Drive belt auto-tensioner
4. Crankshaft pulley 5. A/C compressor pulley 6. Drive belt retainer boss
A. View A B. New drive belt range C. Allowable use range
D. Indicator (notch)
AWBIA1309GB
Revision: November 20132014 Altima NAM

MA-14
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ENGINE MAINTENANCE (QR25DE)
• Loose connections
• Chafing
• Deterioration
CHECKING RESERVOIR LEVEL
• Check if the reservoir tank coolant level is within MIN to MAX when the engine is cool.
• Adjust coolant level if it is too much or too little.
ENGINE COOLANT : Changing Engine CoolantINFOID:0000000009464545
WARNING:
• To avoid being scalded, do not change the coolant when the engine is hot.
• Wrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn to
release built-up pressure. Then push down and turn the cap all the way to remove.
DRAINING ENGINE COOLANT
1. Remove the engine under cover. Refer to EXT-17, "Removal and Installation".
2. Open the radiator drain plug at the bottom of the radi ator and remove the radiator filler cap. This is the
only step required when partially draining the cooling system (radiator only).
CAUTION:
• Do not allow the coolant to contact the drive belt.
• Perform this step when engine is cold.
3. Follow this step for heater core removal/replac ement only. Disconnect the upper heater hose at the
engine side and apply moderate air pressure [103.46 kPa (1.055 kg/cm
2, 15 psi) maximum air pressure]
into the hose for 30 seconds to blow t he excess coolant out of the heater core.
4. When draining all of the coolant in the system, re move the reservoir tank and drain the coolant, then clean
the reservoir tank before installation.
CAUTION:
• Do not allow the coolant to contact the drive belt.
• Perform this step when engine is cold.
5. When draining all of the coolant in the system for engine removal or repair, open the drain plugs (A and B) on the cylinder
block.
: Front
6. Check the drained coolant for contaminants such as rust, corrosion or discoloration.
If the coolant is contaminated, flush the engine cooling system.
REFILLING ENGINE COOLANT
SMA412B
AWBIA1328GB
Revision: November 20132014 Altima NAM

MA-16
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE (QR25DE)
8. Continue to draw the vacuum until the gauge reaches 28 inchesof vacuum. The gauge may not reach 28 inches in high altitude
locations, use the vacuum specifications based on the altitude
above sea level.
9. When the vacuum gauge has reached the specifi ed amount, disconnect the air hose and wait 20 seconds
to see if the system loses any vacuum. If the vacuum level drops, perform any necessary repairs to the
system and repeat steps 6 - 8 to bring the vacuum to the specified amount. Recheck for any leaks.
10. Place the coolant container (with the refill hose insert ed) at the same level as the top of the radiator. Then
open the ball valve on the refill hose so the coolant will be drawn up to fill the cooling system. The cooling
system is full when the vacuum gauge reads zero.
CAUTION:
Do not allow the coolant container to get too low when filling, to avoid air from being drawn into
the cooling system.
11. Remove the Tool from the radiator neck opening.
12. Fill the cooling system reservoir tank to the specif ied level and install the radiator cap. Run the engine to
warm up the cooling system and t op up the system as necessary.
13. Install the engine under cover. Refer to EXT-17, "Removal and Installation"
.
FLUSHING COOLING SYSTEM
1. Fill the radiator from the filler neck above the radiator upper hose and reservoir tank with clean water and
reinstall the radiator filler cap.
2. Run the engine until it reaches normal operating temperature.
3. Rev the engine two or three times under no-load.
4. Stop the engine and wait until it cools down.
5. Drain the water from the system. Refer to CO-12, "Changing Engine Coolant"
.
6. Repeat steps 1 through 5 until clear water begins to drain from the radiator.
FUEL LINES
FUEL LINES : InspectionINFOID:0000000009464546
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loose connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
AIR CLEANER FILTER
Altitude above sea level Vacuum gauge reading
0 - 100 m (328 ft) : 28 inches of vacuum
300 m (984 ft) : 27 inches of vacuum
500 m (1,641 ft) : 26 inches of vacuum
1,000 m (3,281 ft) : 24 - 25 inches of vacuum
LLIA0057E
SMA803A
Revision: November 20132014 Altima NAM

ENGINE MAINTENANCE (QR25DE)MA-17
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AIR CLEANER FILTER : Removal and InstallationINFOID:0000000009464547
CHANGING THE AIR CLEANER FILTER
1. Release the air cleaner case clips.
2. Open the air cleaner case (top).
3. Remove the air cleaner filter.
4. Install a new air cleaner filter.
5. Close the air cleaner case (top).
6. Secure the air cleaner case clips.
ENGINE OIL
ENGINE OIL : InspectionINFOID:0000000009464548
OIL LEVEL
• Before starting the engine, check the oil level. If t he engine is already started, stop it and allow 10 minutes
before checking.
• Check that the oil level is within the range (A) on the oil level gauge.
• If it is out of range, add oil as necessary.
ENGINE OIL : Changing Engine OilINFOID:0000000009464549
WARNING:
• Be careful not to burn yourself, as the engine oil may be hot.
1. Air duct hose and resonator 2. Front air duct 3. Air cleaner case (bottom)
4. Grommets 5. Air cleaner mounting bracket 6. Air cleaner mounting bracket
7. Air cleaner filter 8. Air cleaner case (top) 9. Air cleaner case clips
AWBIA1294GB
JPBIA1497ZZ
Revision: November 20132014 Altima NAM

MA-18
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ENGINE MAINTENANCE (QR25DE)
• Prolonged and repeated contact with used engine oil may cause skin cancer: try to avoid direct skin
contact with used oil. If skin contact is made, wash thoroughly with soap or hand cleaner as soon as
possible.
1. Position the vehicle so it is level on the hoist.
2. Warm up the engine and check for oil leaks from the engine.
3. Stop engine and wait for 10 minutes.
4. Remove the oil pan drain plug (1) and oil filler cap.
5. Drain the engine oil.
6. Install the oil pan drain plug with a new washer and refill the engine with new engine oil.
CAUTION:
• Be sure to clean the oil pan drain plug and install using a new washer.
• The refill capacity depends on the oil temper ature and drain time. Use these specifications for
reference only. Always use the oil level gauge to determine when the proper amount of oil is in
the engine.
7. Warm up the engine and check around the drain plug and oil filter for oil leaks.
8. Stop the engine and wait for 10 minutes.
9. Check the oil level using the oil level gauge. CAUTION:
Do not overfill the engine with engine oil.
OIL FILTER
OIL FILTER : Removal and InstallationINFOID:0000000009464550
REMOVAL
1. Remove fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
2. Drain engine oil. Refer to LU-10, "Changing Engine Oil"
3. Remove the oil filter using suitable tool.
WARNING:
• Be careful not to get burned, the engine and engine oil may be hot.
CAUTION:
• When removing, prepare a shop cloth to absorb any oil leakage or spillage.
• Do not allow engine oil to adhere to the drive belts.
• Completely wipe off any oil that adheres to the engine and
the vehicle.
: Front
Oil specification and
viscosity : Refer to
MA-11, "FOR USA
AND CANADA : Engine Oil
Recommendation".
Oil pan drain plug : 34.3 N·m (3.5 kg-m, 25 ft-lb)JPBIA1676ZZ
Tool number : KV10115801 (J-38956)
WBIA0589E
Revision: November 20132014 Altima NAM

ENGINE MAINTENANCE (QR25DE)MA-19
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• The oil filter has a built in pressure relief valve. Use a Gen-
uine NISSAN oil filter or equivalent.
INSTALLATION
1. Remove foreign materials adhering to the oil filter installation surface.
2. Apply clean engine oil to the oil seal contact surface of the new oil filter.
3. Screw the oil filter manually unt il it touches the installation sur-
face, then tighten it by 2/3 turn. Or tighten to specification below.
4. Refill engine with new engine oil. Refer to LU-10, "Changing Engine Oil"
.
5. After warming up the engine, check for engine oil leaks. Repair as necessary.
6. Install fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and Installa-
tion".
SPARK PLUG
ALC094
SMA010
Oil filter : 18.0 N·m (1.8 kg-m, 13 ft-lb)
SMA229B
Revision: November 20132014 Altima NAM

MA-20
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE (QR25DE)
SPARK PLUG : Removal and Installation
INFOID:0000000009464551
REMOVAL
1. Remove engine room cover. Refer to EM-28, "Removal and Installation".
2. Remove the ignition coil. Refer to EM-40, "Removal and Installation"
.
3. Remove the spark plug with a suitable tool.
INSPECTION AFTER REMOVAL
Visually check the electrode for dirt and wear and the insulator for burning.
1. Ignition coil 2. Spark plug 3. Rocker cover
AWBIA1302GB
(a): 14 mm (0.55 in)
JPBIA0030ZZ
(A) : Iridium alloy
(B) : Platinum alloy
PBIC3152J
Revision: November 20132014 Altima NAM

ENGINE MAINTENANCE (QR25DE)MA-21
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• Do not use a wire brush for cleaning the spark plugs. Replace as
necessary.
• If plug is covered with carbon, a spark plug cleaner may be used.
• Checking and adjusting plug gap is not required between change intervals. If the gap is out of s pecification, replace the spark plug.
CAUTION:
Do not drop or shock plug.
INSTALLATION
Installation is in the reverse order of removal.
*: Always check with the Parts Department for the latest parts information.
EVAP VAPOR LINES
EVAP VAPOR LINES : InspectionINFOID:0000000009464552
1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections,
chafing and deterioration.
2. Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc.
SMA773C
Cleaner air pressure : less than 588 kPa (6 kg/cm2, 85 psi)
Cleaning time : less than 20 seconds
SMA806CA
Standard type* DENSO
FXE20HE11C
Gap (nominal) 1.1 mm (0.043 in)
Revision: November 20132014 Altima NAM