NISSAN TIIDA 2010 Service Repair Manual

RADIATORCO-39
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RADIATOR
Checking Radiator CapINFOID:0000000005398216
• Check valve seat of radiator cap.
- Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
- Check if valve seat has no soil and damage.
• Pull negative-pressure valve to open it, and make sure that it is completely closed when released.
- Make sure that there is no dirt or damage on the valve seat of radi-
ator cap negative-pressure valve.
- Make sure that the valve operates properly in the opening and closing conditions.
• Check radiator cap relief pressure using suitable tool and Tool.
- When connecting the radiator cap to the tester, apply water or coolant to the cap seal surface.
- Replace the radiator cap if there is an abnormality in the negative- pressure valve, or if the open-valve pressure is outside of the standard values.
• Replace radiator cap if there it does not comply to specifications to the above three checks.
CAUTION:
When installing radiator cap, thor oughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorINFOID:0000000005398217
Check radiator for mud or clogging. If necessary, clean radiator as follows.
• Be careful not to bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator shroud and horns. Then tape harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from radiator.
4. Blow air into the back side of radiator core vertically downward.
PBIC2816E
SMA967B
Tool number : EG17650301 (J-33984-A)
Standard: 78 – 98 kPa (0.78 - 0.98 bar, 0.8 – 1.0 kg/cm
2, 11
– 14 psi)
Limit: 59 kPa (0.59 bar, 0.6 kg/cm
2, 9 psi)
WBIA0570E
Revision: January 20102010 Versa

CO-40
< SERVICE INFORMATION >[MR18DE]
RADIATOR
• Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm2, 71 psi) and keep distance more than 30 cm
(11.8 in).
5. Blow air again into all the radiator core surfaces once per minute until no water sprays out.
ComponentINFOID:0000000005398214
1. Reservoir tank cap 2. Reservoir tank 3. Radiator hose (upper)
4. Mounting rubber (upper) 5. Radiator cap6. Reservoir tank hose
7. Radiator 8. A/T fluid cooler hose9. Mounting rubber (lower)
10. O-ring 11. Radiator drain plug12. A/T fluid cooler hose
13. Radiator hose (lower) 14. Cooling fan assembly15. CVT fluid cooler hose
16. CVT fluid cooler hose A. To water outletB. To A/T
C. To water inlet D. M/T models E. CVT models
F. Models with A/C G. To CVT
PBIC4720E
Revision: January 20102010 Versa

RADIATORCO-41
< SERVICE INFORMATION > [MR18DE]
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Removal and InstallationINFOID:0000000005398215
WARNING:
Do not remove radiator cap when the engine is
hot. Serious burns could occur from high-pressure
engine coolant escaping from radiator. Wrap a thick cl oth around the cap. Slowly turn it a quarter of a
turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
REMOVAL
1. Remove engine under cover. Refer to EI-15, "Removal and Installation".
2. Drain engine coolant from radiator. Refer to CO-36, "
Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belt.
3. Remove air duct (inlet). Refer to EM-135
.
4. Remove reservoir tank as follows:
a. Disconnect reservoir tank hose.
b. Release the tab (A) in the direction shown by the arrow ( ).
c. Lift up while removing the reservoir tank hose, and remove it.
5. Disconnect harness connector from fan motor, and move harness aside.
6. Disconnect CVT or A/T fluid cooler hoses if equipped. • Install plug to avoid leakage of CVT or A/T fluid if equipped.
7. Remove radiator hoses (upper and lower).
8. Remove radiator core support cover. Refer to BL-19
.
9. Remove cooling fan assembly.
10. Remove radiator core support (upper) bolts, bolts of stationary part on the radiator core support side and clip. Lift radiator from
radiator (upper) mount part of radiator core support (upper) (2).
11. Move radiator assembly (1) to the rearward direction of vehicle, and then lift it upward to remove.
CAUTION:
Do not damage or scratch A/C condenser if equipped and
radiator core when removing.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not damage or scratch A/C condenser if eq uipped and radiator core when installing.
INSPECTION AFTER INSTALLATION
• Check for leaks of engine coolant. Refer to CO-36, "Inspection".
• Start and warm up engine. Visually check for leaks of engine coolant and CVT or A/T fluid if equipped. Refer
to CVT-14
or AT- 1 7.
PBIC3800E
PBIC3805E
Revision: January 20102010 Versa

CO-42
< SERVICE INFORMATION >[MR18DE]
COOLING FAN
COOLING FAN
Component (Models with A/C)INFOID:0000000005398218
Component (Models without A/C)INFOID:0000000005398219
1. Fan motor cover
2. Fan motor3. Cooling fan control module
4. Washer 5. Fan shroud 6. Washer
7. Cooling fan A. Apply on fan motor shaft Front
PBIC4538E
1. Fan motor 2. Fan shroud3. Cooling fan
A. Apply on fan motor shaft Front
WBIA0786E
Revision: January 20102010 Versa

COOLING FANCO-43
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Removal and InstallationINFOID:0000000005398220
REMOVAL
1. Partially drain engine coolant from radiator. Refer to
CO-36, "Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belt.
2. Remove air duct (inlet). Refer to EM-135, "
Component".
3. Remove reservoir tank. Refer to CO-40, "
Component".
4. Disconnect radiator hose (upper) at radiator side. Refer to CO-40, "
Component".
5. Disconnect harness connectors from fan motor, and move harness aside.
6. Remove cooling fan assembly. CAUTION:
Be careful not to damage or scratch the radiator core.
INSTALLATION
Installation is in the reverse order of removal.
• Cooling fans are controlled by ECM. For details, refer to EC-910, "
System Description".
CAUTION:
Be careful not to damage or scratch the radiator core.
Disassembly and AssemblyINFOID:0000000005398221
DISASSEMBLY
1. Remove cooling fan from fan motor.
2. Remove fan motor from fan shroud.
INSPECTION AFTER DISASSEMBLY
Inspect cooling fan for crack or unusual bend.
• If anything is found, replace cooling fan.
ASSEMBLY
Assembly is in the reverse order of disassembly.
Revision: January 20102010 Versa

CO-44
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WATER PUMP
WATER PUMP
ComponentINFOID:0000000005398222
Removal and InstallationINFOID:0000000005398223
REMOVAL
1. Disconnect battery negative terminal. Refer to
SC-7, "Removal and Installation".
2. Remove reservoir tank. Refer to CO-40, "
Component".
3. Drain engine coolant from radiator. Refer to CO-36, "
Changing Engine Coolant".
CAUTION:
Perform this step when the engine is cold.
4. Remove front fender protector (RH). Refer to EI-24, "
Removal and Installation".
5. Remove drive belt. Refer to EM-132, "
Removal and Installation".
6. Remove generator. Refer to SC-25, "
Removal and Installation".
7. Remove radiator hose (lower). Refer to CO-40, "
Component".
8. Remove water pump. CAUTION:
• Handle water pump vane so that it does not contact any other parts.
• Water pump cannot be disassembled and should be replaced as a unit.
INSPECTION AFTER REMOVAL
• Visually check that there is no significant dirt or rusting on water
pump body and vane (A).
• Make sure that there is no looseness in vane shaft, and that it turns smoothly when rotated by hand.
• Replace water pump, if necessary.
INSTALLATION
Installation is in the reverse order of removal.
1. Gasket 2. Water pump
PBIC3921E
PBIC3313J
Revision: January 20102010 Versa

WATER PUMPCO-45
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INSPECTION AFTER INSTALLATION
• Check that the reservoir tank cap is tightened.
• Check for leaks of engine coolant. Refer to
CO-36, "
Inspection".
• Start and warm up the engine. Visually check for leaks of engine coolant.
Revision: January 20102010 Versa

CO-46
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THERMOSTAT
THERMOSTAT
ComponentINFOID:0000000005398224
Removal and InstallationINFOID:0000000005398225
REMOVAL
1. Drain engine coolant from radiator. Refer to
CO-36, "Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Never spill engine coolant on drive belt.
2. Remove the air duct (inlet). Refer to EM-135, "
Component".
3. Remove the radiator hose (lower) from the engine. Refer to CO-40, "
Component".
4. Remove water inlet.
5. Remove thermostat.
6. Remove water pump, if necessary. Refer to CO-44
.
7. Remove thermostat housing, if necessary.
INSPECTION AFTER REMOVAL
• Place a thread (A) so that it is caught in the valves of thermostat (1). Immerse fully in a container (B) filled with water. Heat while
stirring.
• The valve opening temperature is the temperature at which the
valve opens and falls from the thread.
• Continue heating. Check the full-open valve lift amount. NOTE:
The full-open valve lift amount standard temperature for the ther-
mostat is the reference value.
• After checking the full-open valve lift amount, lower the water tem-
perature and check the valve closing temperature.
• If out of the specification, replace thermostat.
1. Gasket 2. Thermostat housing3. Clamp
4. Water hose 5. Rubber ring6. Thermostat
7. Water inlet 8. Clamp9. Radiator hose (lower)
A. CVT models B. To CVT fluid coolerC. To radiator
JPBIA2884GB
Standard : Refer to CO-51, "Standard and Limit"
PBIC3314J
Revision: January 20102010 Versa

THERMOSTATCO-47
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INSTALLATION
Installation is in the reverse order of removal.
• Use the following procedure to install the thermostat.
- Install thermostat making sure rubber ring (1) groove fits securely
to thermostat flange (A).
CAUTION:
Replace the rubber ring with a new one.
- Install thermostat (1) into the thermostat housing (2) with jiggle valve (A) facing upwards.
• Use the following procedure to install the thermostat housing.
- Securely insert the rubber ring into the mati ng groove of thermostat housing and install it.
CAUTION:
Replace the rubber ring with a new one.
- Install the thermostat housing to the cylinder blo ck without displacing the gasket from the gasket position.
INSPECTION AFTER INSTALLATION
• Check that the reservoir tank cap is tightened.
• Check for leaks of engine coolant. Refer to CO-36, "
Inspection".
• Start and warm up the engine. Visually check for leaks of engine coolant.
PBIC3315J
PBIC3548J
Revision: January 20102010 Versa

CO-48
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WATER OUTLET AND WATER CONTROL VALVE
WATER OUTLET AND WATER CONTROL VALVE
ComponentINFOID:0000000005398226
Removal and InstallationINFOID:0000000005398227
REMOVAL
1. Drain engine coolant from radiator. Refer to
CO-36, "Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Never spill engine coolant on drive belt.
2. Remove battery and battery tray. Refer to SC-7, "
Removal and Installation".
3. Remove air cleaner and air duct. Refer to EM-135, "
Component".
4. Remove radiator hose (lower) from engine. Refer to CO-40, "
Component".
5. Remove heater hoses and water hoses.
6. Remove water outlet.
7. Remove water control valve.
8. Remove engine coolant temperature sensor from the water outlet, if necessary.
CAUTION:
• Handle carefully to avoid any shock to engine coolant temperature sensor.
• Replace the gasket with a new one.
INSPECTION AFTER REMOVAL
1. Engine coolant temperature sensor 2. Rubber ring 3. Water control valve
4. Gasket 5. Water hose 6. Gasket
7. Water hose 8. Water outlet 9. Heater hose
10. Heater hose 11. Radiator hose (upper) Front
A. To heater B. To electric throttle control actuator C. To radiator
PBIC4699E
Revision: January 20102010 Versa