2014 NISSAN TEANA engine coolant

CO-18
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COOLING FAN
COOLING FAN
Exploded ViewINFOID:0000000009460395
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 th ick 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.
NOTE:
• When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from
spilling.
• Replace the radiator shroud and cooling fan assembly as a unit. Do not replace cooling fan motors or cool-
ing fan blades separately.
Removal and InstallationINFOID:0000000009460396
REMOVAL
1. Partially drain engine coolant from the radiator. Refer to CO-36, "Changing Engine Coolant".
CAUTION:
• Perform when engine is cold.
• Do not spill coolant on the drive belt.
2. Remove engine room cover. Refer to EM-28, "Removal and Installation"
.
1. Radiator core support 2. Fan shroud and motor assembly 3. Grommet
AWBIA1275GB
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COOLING FANCO-19
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3. Remove the core support cover clips (A), then remove the core
support cover (1).
4. Remove front air duct. Refer to EM-144, "Removal and Installation"
.
5. Remove air cleaner and air duct assembly. Refer to EM-29, "Removal and Installation"
.
6. Remove battery tray and battery tray bracket. Refer to PG-74, "Removal and Installation (Battery Tray)"
.
7. Disconnect radiator hose (upper) from radiator.
8. Disconnect the harness connectors from the fan motor.
9. Remove fan shroud and motor assembly.
INSTALLATION
Installation is in the reverse order of removal.
• After installation refill engine coolant and check for leaks. Refer to CO-36, "Changing Engine Coolant"
and
CO-35, "System Inspection"
.
CAUTION:
Do not spill coolant in engi ne compartment. Use a shop cloth to absorb coolant.
• Cooling fans are controlled by ECM. Refer to EC-74, "On Board Diagnosis Function"
.
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Revision: November 20132014 Altima NAM

CO-20
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WATER PUMP
WATER PUMP
Exploded ViewINFOID:0000000009460397
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 th ick 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.
CAUTION:
• When removing water pump assembly, be car eful not to get coolant on drive belt.
• Water pump cannot be disassembled and should be replaced as a unit.
• After installing water pump, connect hose and clamp securely, then check for leaks using radiator
cap tester.
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
Removal and InstallationINFOID:0000000009460398
REMOVAL
1. Drain engine coolant from the radiator. Refer to CO-12, "Changing Engine Coolant".
CAUTION:
Perform when the engine is cold.
2. Remove the core support cover clips (A), then remove the core support cover (1).
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1. Water pump 2-5. Tightening order 6. Gasket
7. Water pump housing 8-11. Tightening order 12. Water pipe
13. Gasket 14. O-ring
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WATER PUMPCO-21
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3. Remove fender protector side cover (RH). Refer to
EXT-26, "FENDER PROTECTOR : Removal and
Installation".
4. Remove engine under cover. Refer to EXT-17, "Removal and Installation"
.
5. Remove engine room cover. Refer to EXT-17, "Removal and Installation"
.
6. Remove front air duct. Refer to EM-84, "Removal and Installation"
.
7. Remove generator. Refer to CHG-32, "Removal and Installation"
.
8. Remove water pump bolts.
9. Remove the water pump and gasket, as necessary. CAUTION:
• Handle the water pump vane so that it does not contact any other parts.
• Water pump cannot be disassembled an d should be replaced as an assembly.
10. Remove water pipe, O-rings, water pump housing, and gasket.
INSPECTION AFTER REMOVAL
• Visually check that there is no significant dirt or rusting on the water pump body and vane.
• Check that there is no looseness in the vane shaft, and that it turns
smoothly when rotated by hand.
• If the water pump does not perform properly, replace the water pump assembly.
INSTALLATION
Installation is in the reverse order of removal.
• When inserting water pipe end to cylinder block, apply a mild soap to O-ring. Then insert it immediately.
CAUTION:
Do not reuse O-rings.
Do not reuse gasket.
INSPECTION AFTER INSTALLATION
• After installation refill engine coolant and check for leaks. Refer to CO-12, "Changing Engine Coolant" and
CO-11, "System Inspection"
.
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CO-22
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THERMOSTAT AND THERMOSTAT HOUSING
THERMOSTAT AND THERMOSTAT HOUSING
Exploded ViewINFOID:0000000009460399
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 th ick 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.
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
Removal and InstallationINFOID:0000000009460400
REMOVAL
1. Drain engine coolant from the radiator. Refer to CO-12, "Changing Engine Coolant".
CAUTION:
Perform when the engine is cold.
2. Remove the core support cover clips (A), then remove the core support cover (1).
3. Remove the front air duct. Refer to EM-29, "Removal and Installation"
.
4. Remove engine under cover. Refer to EXT-17, "Removal and Installation"
.
5. Remove radiator hose (lower) from the water inlet side.
6. Remove exhaust manifold heat shield.
7. Remove water inlet and thermostat.
INSPECTION AFTER REMOVAL
1. Water inlet 2. Thermostat 3. Rubber ring
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THERMOSTAT AND THERMOSTAT HOUSINGCO-23
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• Place a thread so that it is caught
in the valves of the thermostat.
Immerse fully in a container filled with water. Heat while stirring.
• The valve opening temperature is the temperature at which the
valve opens and the thermostat falls from the thread.
• Continue heating. Check the full-open lift amount. NOTE:
The full-open lift amount standard temperature for the thermostat is
the reference value.
• After checking the full-open lift amount, lower the water tempera-
ture and check the valve closing temperature.
• If valve setting at measured values are out of standard range, replace thermostat.
INSTALLATION
Installation is in the reverse order of removal.
• Install the thermostat with the whole circumference of the flange fit-
ting securely inside the rubber ring.
• Install the thermostat with the jiggle valve facing upwards. The
position deviation may be within the range of ±10 °.
• After installation, refill coolant and check for leaks. Refer to CO-
12, "Changing Engine Coolant" and CO-11, "System Inspection".
SLC252B
Thermostat Standard Values
Valve opening temperature Refer to CO-26, "Thermostat"
Full-open lift amount Refer to CO-26, "Thermostat"
Valve closing temperature Refer to CO-26, "Thermostat"
PBIC0157E
Revision: November 20132014 Altima NAM

CO-24
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WATER OUTLET AND WATER PIPING
WATER OUTLET AND WATER PIPING
Exploded ViewINFOID:0000000009460401
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 th ick 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.
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
Removal and InstallationINFOID:0000000009460402
REMOVAL
1. Drain engine coolant from the radiator. Refer to CO-12, "Changing Engine Coolant".
CAUTION:
Perform when the engine cold.
1. Heater pipe 2. O-ring 3. Clamp
4. Water hose 5-9. Tightening order 10. Water outlet
11. O-ring 12. Water temp sensor
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WATER OUTLET AND WATER PIPINGCO-25
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2. Remove the core support cover clips (A), then remove the core
support cover (1).
3. Remove air cleaner assembly and front air duct. Refer to EM-84, "Removal and Installation"
.
4. Remove the engine room cover. Refer to EM-28, "Removal and Installation"
.
5. Remove the upper radiator hose, heater pipe, electric throttle control actuator inlet hose, water hose, and
water temperature sensor.
6. Remove the water outlet, O-ring and gasket. CAUTION:
• Do not reuse O-ring.
• Do not reuse gasket.
• Do not reuse water outlet.
INSTALLATION
Installation is in the reverse order of removal.
• Install the engine coolant temperature sensor. Use Genuine RTV Silicone Seal ant or equivalent. Refer to GI-21, "Recommended Chemical Products
and Sealants".
• Install the heater pipe, first apply a mild soap to t he O-ring and quickly insert the heater pipe into the hous-
ing.
CAUTION:
• Do not reuse O-ring.
• Do not reuse gasket.
• Do not reuse water outlet.
• After installation, refill coolant and check for leaks. Refer to CO-12, "Changing Engine Coolant"
and CO-11,
"System Inspection".
CAUTION:
Do not spill coolant in engi ne compartment. Use a shop cloth to absorb coolant.
ALKIA2602ZZ
Revision: November 20132014 Altima NAM