Nissan Murano. Manual — part 273
ENGINE COOLANT
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6.
Install air duct assembly and air cleaner cases (upper and lower) assembly. Refer to
.
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.
Flushing
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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
2.
Remove air duct assembly and air cleaner cases (upper and lower) assembly. Refer to
.
A
: MAX
B
: MIN
JPBIA0102ZZ
Tightening torque
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< PERIODIC MAINTENANCE >
ENGINE COOLANT
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
9.
Repeat steps 1 through 8 until clear water begins to drain from radiator.
: Vehicle front
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RADIATOR
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RADIATOR
RADIATOR CAP
RADIATOR CAP : Inspection
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• Check valve seat (A) of radiator cap.
- Check if valve seat is swollen to the extent that the edge of the
plunger (B) cannot be seen when watching it vertically from the
top.
- Check if valve seat has no soil and damage.
- Check that there is no dirt or damage on the valve seat of radiator
cap negative-pressure valve.
- Check that there are no unusualness in the opening and closing
conditions of negative-pressure valve.
• Check radiator cap relief pressure.
- When connecting radiator cap to the radiator cap tester (commer-
cial service tool) and the radiator cap tester adapter (commercial
service tool) (A), apply engine coolant to the cap seal surface.
• Replace radiator cap if there is an unusualness related to the above three.
CAUTION:
When installing radiator cap, thoroughly wipe out the radiator pipe (upper) filler neck to remove any
waxy residue or foreign material.
RADIATOR
RADIATOR : Inspection
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Check radiator for mud or clogging. If necessary, clean radiator as follows:
CAUTION:
• Be careful not to bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as radiator cooling fan
assembly 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 surfaces 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 (5 kg/cm
2
, 71 psi) and keep distance more than 30 cm (11.81
in).
5.
Blow air again into all the radiator core surfaces once per minute until no water sprays out.
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Standard and limit
: Refer to
.
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< REMOVAL AND INSTALLATION >
RADIATOR
REMOVAL AND INSTALLATION
RADIATOR
Exploded View
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1.
Reservoir tank cap
2.
Reservoir tank
3.
Clamp
4.
Reservoir tank hose
5.
Radiator cap
6.
Radiator cap adapter
7.
Radiator pipe (upper)
8.
Clamp
9.
Radiator hose (upper)
10. Radiator hose (upper)
11.
O-ring
12. Drain plug
13. Water drain hose
14. Mounting rubber (upper)
15. Radiator upper clip
16. Radiator
17. Mounting rubber (lower)
18. Radiator pipe (lower)
19. Radiator hose (lower)
20. Clamp
21. CVT fluid cooler hose
22. CVT fluid cooler hose
23. CVT fluid cooler pipe
24. CVT fluid cooler hose
25. Grommet
26. Cooling fan assembly
27. Radiator hose (lower)
A.
To water outlet
B.
To transaxle assembly
C.
To water inlet
: Always replace after every disassembly.
: N·m (kg-m, in-lb)
JPBIA2760GB
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