
CO-8
< ON-VEHICLE MAINTENANCE >
ENGINE COOLANT
ON-VEHICLE MAINTENANCE
ENGINE COOLANT
InspectionINFOID:0000000003793166
LEVEL
Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” when the engine is cool.
Adjust the engine coolant level as necessary.
LEAKAGE
To check for leakage, apply pressure to the cooling system with the
radiator cap tester (commercial service tool) (A) and radiator cap
tester adapter (commercial service tool) (B).
WARNING:
Never remove radiator cap when engine is hot. Serious burns
could occur from high-pressure engine coolant escaping from
radiator.
CAUTION:
Higher test pressure than specified may cause radiator dam-
age.
NOTE:
In a case that engine coolant decreases, replenish radiator with engine coolant.
If anything is found, repair or replace damaged parts.
DrainingINFOID:0000000003793167
WARNING:
To avoid being scalded, never change engine coolant when the engine is hot.
Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressure. Then turn radiator cap all the way.
1. Remove engine under cover.
2. Open radiator drain plug (1) at the bottom of radiator, and then
remove radiator cap.
When draining all of engine coolant in the system, open water drain plugs on cylinder block. Refer
to EM-110, "
Disassembly and Assembly".
3. Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
A: MAX
B: MIN
JPBIA0102ZZ
Testing pressure : Refer to CO-27, "Radiator".
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: Vehicle front
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ENGINE COOLANT
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4. Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
If contaminated, flush the engine cooling system. Refer to CO-10, "
Flushing".
RefillingINFOID:0000000003793168
1. Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to EM-110, "
Dis-
assembly and Assembly".
2. Check that each hose clamp has been firmly tightened.
3. Remove air duct assembly and air cleaner cases (upper and lower) assembly. Refer to EM-26, "
Exploded
View".
4. Disconnect heater hose (1) at the position ( ) in the figure.
5. Fill radiator, and reservoir tank if removed, to specified level.
CAUTION:
Never adhere the engine coolant to electronic equipments.
(alternator etc.)
Pour engine coolant through engine coolant filler neck
slowly of less than 2 (1-3/4 lmp qt) a minute to allow air
in system to escape.
When engine coolant overflows disconnected heater
hose, connect heater hose, and continue filling the engine
coolant.
Use Genuine NISSAN Engine Coolant or equivalent in its
quality mixed with water (distilled or demineralized). Refer
to MA-11, "
Fluids and Lubricants". Tightening torque : Refer to CO-13, "
Exploded View".
: Vehicle front
JPBIA2226ZZ
Engine coolant capacity
: Refer to CO-27, "Periodical Maintenance Spec-
ification".
(With reservoir tank at “MAX” level)
Reservoir tank engine coolant capacity
:Refer to CO-27, "
Periodical Maintenance Spec-
ification".
(At “MAX” level)
A : MAX
B: MIN
JPBIA0412ZZ
JPBIA0102ZZ

CO-10
< ON-VEHICLE MAINTENANCE >
ENGINE COOLANT
6. Install air duct assembly and air cleaner cases (upper and lower) assembly. Refer to EM-26, "Exploded
View".
7. Install radiator cap.
8. Warm up engine until opening thermostat. Standard for warming-up time is approximately 10 minutes at
3,000 rpm.
Check thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat engine.
9. Stop the engine and cool down to less than approximately 50°C (122°F).
Cool down using fan to reduce the time.
If necessary, refill radiator up to filler neck with engine coolant.
CAUTION:
Never adhere the engine coolant to electronic equipments. (alternator etc.)
10. Refill reservoir tank to “MAX” level line with engine coolant.
11. Repeat steps 7 through 10 two or more times with radiator cap installed until engine coolant level no
longer drops.
12. Check cooling system for leakage with engine running.
13. Warm up the engine, and check for sound of engine coolant flow while running engine from idle up to
3,000 rpm with heater temperature controller set at several position between “COOL” and “WARM”.
Sound may be noticeable at heater unit.
14. Repeat step 13 three times.
15. If sound is heard, bleed air from cooling system by repeating step 5, and steps from 7 to 14 until engine
coolant level no longer drops.
FlushingINFOID:0000000003793169
1. Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to EM-110, "
Dis-
assembly and Assembly".
2. Remove air duct assembly and air cleaner cases (upper and lower) assembly. Refer to EM-26, "
Exploded
View".
3. Disconnect heater hose (1) at the position ( ) in the figure.
4. Fill radiator and reservoir tank with water and reinstall radiator cap.
CAUTION:
Never adhere the water to electronic equipments. (alternator etc.)
When water overflows disconnected heater hose, connect heater hose, and continue filling the
water.
5. Run the engine and warm it up to normal operating temperature.
6. Rev the engine two or three times under no-load.
7. Stop the engine and wait until it cools down.
8. Drain water from the system. Refer to CO-8, "
Draining". Tightening torque : Refer to CO-13, "
Exploded View".
: Vehicle front
JPBIA2226ZZ

CO-16
< ON-VEHICLE REPAIR >
COOLING FAN
COOLING FAN
Exploded ViewINFOID:0000000003793175
Removal and InstallationINFOID:0000000003793176
REMOVAL
1. Remove the following parts.
Engine under cover
Air duct (inlet): Refer to EM-26, "
Exploded View".
Oil level gauge: Refer to EM-96, "
Exploded View".
Battery and battery tray: Refer to PG-109, "
Removal and Installation".
2. Drain engine coolant from radiator. Refer to CO-8, "
Draining".
CAUTION:
Perform this step engine is cold.
Never spill engine coolant on drive belt.
3. Remove radiator cap adapter and radiator hoses (upper) and radiator pipe (upper) assembly. Refer to
CO-13, "
Exploded View".
4. Disconnect harness connector from fan motors (RH and LH), and move harness to aside.
5. Disconnect harness connector from crash zone sensor, and move harness to aside. Refer to SR-18,
"Exploded View".
6. Remove battery tray bracket mounting bolts, and move battery tray bracket to aside.
7. Remove cooling fan assembly.
1. Fan motor (LH) 2. Fan motor (RH) 3. Fan shroud
4. Mounting rubber 5. Cooling fan (RH) 6. Cooling fan (LH)
A. Apply on fan motor shaft
: Vehicle front
: Apply high strength thread locking sealant or equivalent.
Refer to GI-4, "
Components" for symbols not described on the above.
JPBIA1687GB

CO-26
< ON-VEHICLE REPAIR >
WATER OUTLET AND WATER PIPING
5. Remove CVT fluid charging pipe and CVT fluid level gauge. Refer to TM-332, "Exploded View" (VQ25DE)
or TM-168, "
Exploded View" (VQ35DE).
6. Move CVT control cable aside. Refer to TM-319, "
Exploded View" (VQ25DE) or TM-157, "Exploded View"
(VQ35DE).
7. Remove vacuum pipe (front) mounting bolt from water outlet. Refer to EM-67, "
Exploded View".
8. Remove radiator hose (upper) from water outlet.
9. Remove water hoses and heater hoses.
10. Disconnect harness connectors, and move harness to aside.
11. Remove engine coolant temperature sensor as necessary.
CAUTION:
Be careful not to damage engine coolant temperature sensor.
12. Remove water outlet, heater pipe, water bypass pipe and water connector.
INSTALLATION
Note the following, and install in the reverse order of removal.
Securely insert each hose, and install clamp at a position where it does not interfere with the pipe bulge.
When inserting water bypass pipe and heater pipe into water connector, apply neutral detergent to O-ring.
InspectionINFOID:0000000003793187
INSPECTION AFTER INSTALLATION
Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the
radiator cap tester (commercial service tool). Refer to CO-8, "
Inspection".
Start and warm up the engine. Visually check that there is no leakage of engine coolant.

SERVICE DATA AND SPECIFICATIONS (SDS)
CO-27
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Periodical Maintenance SpecificationINFOID:0000000003793188
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (lmp qt)
RadiatorINFOID:0000000003793189
Unit: kPa (bar, kg/cm2, psi)
ThermostatINFOID:0000000003793190
Standard
Engine coolant capacity (With reservoir tank at “MAX” level) 9.1 (8)
Reservoir tank0.8 (3/4)
Cap relief pressureStandard 122.3 - 151.7 (1.2 - 1.5, 1.2 - 1.5, 17.7 - 22.0)
Limit 108 (1.1, 1.1, 15.6)
Leakage test pressure 157 (1.57, 1.6, 22.8)
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Maximum valve lift 8.6 mm/95°C (0.339 in/203°F)
Valve closing temperature 77°C (171°F)
![NISSAN TEANA 2008 Service Manual ENGINE CONTROL SYSTEM
EC-25
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
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Component DescriptionINFOID:0000000003856464
1. Fuel level sensor unit and fuel pump
harness connect NISSAN TEANA 2008 Service Manual ENGINE CONTROL SYSTEM
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< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
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Component DescriptionINFOID:0000000003856464
1. Fuel level sensor unit and fuel pump
harness connect](/manual-img/5/57391/w960_57391-1485.png)
ENGINE CONTROL SYSTEM
EC-25
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
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Component DescriptionINFOID:0000000003856464
1. Fuel level sensor unit and fuel pump
harness connector2. Fuel pressure regulator 3. Fuel level sensor unit and fuel pump
: Vehicle front
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Component Reference
A/F sensor 1EC-163, "
Description"
A/F sensor 1 heaterEC-140, "Description"
Accelerator pedal position sensorEC-304, "Description"
ASCD brake switchEC-273, "Description"
ASCD steering switchEC-270, "Description"
Battery current sensorEC-258, "Description"
Camshaft position sensor (PHASE)EC-222, "Description"
Crankshaft position sensor (POS)EC-218, "Description"
Cooling fan motorEC-324, "Description"
Electric throttle control actuatorEC-302, "Description"
Electronic controlled engine mountEC-331, "Description"
Engine coolant temperature sensorEC-157, "Description"
EVAP canister purge volume control solenoid valveEC-231, "Description"
Fuel injectorEC-334, "Description"
Fuel pumpEC-337, "Description"
Heated oxygen sensor 2EC-178, "Description"
Heated oxygen sensor 2 heaterEC-143, "Description"
Ignition coil with power transistorEC-341, "Description"
Intake air temperature sensorEC-154, "Description"
Intake valve timing control solenoid valveEC-146, "Description"
Knock sensorEC-215, "Description"
Mass air flow sensorEC-149, "Description"
PCV valveEC-347, "Description"
Power steering pressure sensorEC-236, "Description"
Power valves 1 and 2EC-351, "Description"
Refrigerant pressure sensorEC-348, "Description"
Stop lamp switchEC-291, "Description"
TCM (VQ35DE engine)
Park/neutral position (PNP) switch (VQ25DE engine)EC-245, "Description"
Throttle control motorEC-300, "Description"
![NISSAN TEANA 2008 Service Manual EC-36
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
MULTIPORT FUEL INJECTION SYSTEM
Component Description
INFOID:0000000003856468
1. Fuel level sensor unit and fuel pump
harness connector2. Fuel pressure re NISSAN TEANA 2008 Service Manual EC-36
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
MULTIPORT FUEL INJECTION SYSTEM
Component Description
INFOID:0000000003856468
1. Fuel level sensor unit and fuel pump
harness connector2. Fuel pressure re](/manual-img/5/57391/w960_57391-1496.png)
EC-36
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
MULTIPORT FUEL INJECTION SYSTEM
Component Description
INFOID:0000000003856468
1. Fuel level sensor unit and fuel pump
harness connector2. Fuel pressure regulator 3. Fuel level sensor unit and fuel pump
: Vehicle front
JMBIA1385ZZ
Component Reference
A/F sensor 1EC-163, "
Description"
Accelerator pedal position sensorEC-304, "Description"
Camshaft position sensor (PHASE)EC-222, "Description"
Crankshaft position sensor (POS)EC-218, "Description"
Engine coolant temperature sensorEC-157, "Description"
Fuel injectorEC-334, "Description"
Heated oxygen sensor 2EC-178, "Description"
Intake air temperature sensorEC-154, "Description"
Knock sensorEC-215, "Description"
Mass air flow sensorEC-149, "Description"
Park/neutral position switchEC-245, "Description"
Power steering pressure sensorEC-236, "Description"
Throttle position sensorEC-160, "Description"