2008 NISSAN LATIO Service Repair Manual

audio sat nav air condition spark plugs ABS display

Page 825 of 2771

NISSAN LATIO 2008 Service Repair Manual CO-8
< SERVICE INFORMATION >
ENGINE COOLANT
ENGINE COOLANT
InspectionINFOID:0000000001702529
LEVEL CHECK
• Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” range

Page 826 of 2771

NISSAN LATIO 2008 Service Repair Manual ENGINE COOLANT
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< SERVICE INFORMATION >
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1. Install reservoir tank if removed. Refer to CO-11.
2. Install radiator drain plug.
•If water drain plug on cylinder blo

ENGINE COOLANT
CO-9
< SERVICE INFORMATION >
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1. Install reservoir tank if removed. Refer to CO-11.
2. Install radiator drain plug.
•If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-76
.
CAUTION:
Be sure to clean radiator drain plug and install with new O-ring. Refer to CO-11, "
Component".
3. Make sure that each hose clamp has been firmly tightened.
4. Remove air duct assembly. Refer to EM-16
.
5. Disconnect heater hose (1) at position ( ) as shown.
• Front
• Reposition heater hose as high as possible.
6. Fill radiator and reservoir tank to specified level.
•Pour engine coolant through engine coolant filler neck
slowly of less than 2 (2 1/8 US qt, 1-3/4 lmp qt) a minute
to allow air in system to escape.
•Use NISSAN Genuine Engine Coolant or equivalent mixed
with water (distilled or demineralized). Fill cooling system
to specification. Refer to MA-10
.
• When engine coolant overflows disconnected heater hose,
connect heater hose, and continue filling the engine coolant, if
heater hose is disconnected.
7. Install radiator cap.
8. Install air duct assembly. Refer to EM-16
.
9. Warm up until opening thermostat. Standard for warming-up time is approximately 10 minutes at 3,000
rpm.
• Make sure 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 the engine.
10. Stop 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.
11. Refill reservoir tank to “MAX” level line with engine coolant.
12. Repeat steps 6 through 11 two or more times with radiator cap installed until engine coolant level no
longer drops.
13. Check cooling system for leaks with engine running.
14. Warm up 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.
15. Repeat step 14 three times.
16. If sound is heard, bleed air from cooling system by repeating steps 6 through 11 until engine coolant level
no longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed. Refer to CO-11.
2. Install radiator drain plug.
•If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-76
.
CAUTION:
Be sure to clean radiator drain plug and install with new O-ring. Refer to CO-11, "
Component".
PBIC3802E
SMA182B

Page 827 of 2771

NISSAN LATIO 2008 Service Repair Manual CO-10
< SERVICE INFORMATION >
ENGINE COOLANT
3. Fill radiator and reservoir tank with water and reinstall radiator cap.
4. Run engine and warm it up to normal operating temperature.
5. Rev engine two

Page 828 of 2771

NISSAN LATIO 2008 Service Repair Manual RADIATOR
CO-11
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RADIATOR
ComponentINFOID:0000000001702531
Removal and InstallationINFOID:0000000001702532
WARNING:
1. Reservoir tank cap 2. Reser

Page 829 of 2771

NISSAN LATIO 2008 Service Repair Manual CO-12
< SERVICE INFORMATION >
RADIATOR
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 cloth around

Page 830 of 2771

NISSAN LATIO 2008 Service Repair Manual RADIATOR
CO-13
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Checking Radiator CapINFOID:0000000001702533
• Check valve seat of radiator cap.
- Check if valve seat is swollen to the exten

RADIATOR
CO-13
< SERVICE INFORMATION >
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Checking Radiator CapINFOID:0000000001702533
• 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 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, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorINFOID:0000000001702534
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.
• Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm
2, 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.
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

Page 831 of 2771

NISSAN LATIO 2008 Service Repair Manual CO-14
< SERVICE INFORMATION >
COOLING FAN
COOLING FAN
Component (Models with A/C)INFOID:0000000001702535
Component (Models without A/C)INFOID:0000000001702536
1. Fan motor cover 2. Fan motor 3. Coolin

Page 832 of 2771

NISSAN LATIO 2008 Service Repair Manual COOLING FAN
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Removal and InstallationINFOID:0000000001702537
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-8, "Changing En

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