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![NISSAN X-TRAIL 2001 Service Repair Manual ENGINE COOLANT
CO-31
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8. Repeat steps 5 through 7 two or more times with radiator cap installed until engine coolant level no longer
drops.
9. Check cooling system NISSAN X-TRAIL 2001 Service Repair Manual ENGINE COOLANT
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8. Repeat steps 5 through 7 two or more times with radiator cap installed until engine coolant level no longer
drops.
9. Check cooling system](/manual-img/5/57405/w960_57405-336.png)
ENGINE COOLANT
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8. Repeat steps 5 through 7 two or more times with radiator cap installed until engine coolant level no longer
drops.
9. Check cooling system for leaks with engine running.
10. 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.
11. If sound is heard, bleed air from cooling system by repeating steps 5 through 7 until engine coolant level
no longer drops.
●Clean excess engine coolant from engine.
FLUSHING COOLING SYSTEM
1. Fill radiator with water until water spills from the air relief hole, then close air relief flag. Fill radiator and
reservoir tank with water and reinstall radiator cap.
2. Run engine and warm it up to normal operating temperature.
3. Rev engine two or three times under no-load.
4. Stop engine and wait until it cools down.
5. Drain water.
6. Repeat steps 1 through 5 until clear water begins to drain from radiator.
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![NISSAN X-TRAIL 2001 Service Repair Manual CO-32
[YD22DDTi]
RADIATOR
RADIATOR
PFP:21400
Removal and InstallationEBS00BB0
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant NISSAN X-TRAIL 2001 Service Repair Manual CO-32
[YD22DDTi]
RADIATOR
RADIATOR
PFP:21400
Removal and InstallationEBS00BB0
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant](/manual-img/5/57405/w960_57405-337.png)
CO-32
[YD22DDTi]
RADIATOR
RADIATOR
PFP:21400
Removal and InstallationEBS00BB0
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter
turn to allow built-up pressure to escape. Carefully remove the cap by turning it all the way.
REMOVAL
1. Drain engine coolant. Refer to CO-29, "DRAINING ENGINE COOLANT" .
2. Remove undercover.
3. Disconnect radiator upper hose, lower hose, reservoir tank hose and mounting bracket.
4. Remove radiator and radiator fan assembly
CAUTION:
Do not damage or scratch radiator core when removing.
INSTALLATION
●Reinstall any parts removed in reverse order of removal.
●Check for engine coolant leaks. Refer to CO-29, "CHECKING RADIATOR SYSTEM FOR LEAKS" .
PBIC0671E
1. Radiator 2. Bracket 3. Mounting rubber
4. Drain plug 5. Radiator hose (lower) 6. Radiator fan assembly
7. Reservoir tank 8. Radiator hose (upper) 9. Radiator cap
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RADIATOR
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Disassembly and Assembly Radiator FanEBS00BB1
DISASSEMBLY
1. Remove radiator fan.
2. Remove fan motor from fan shroud.
ASSEMBLY
Install in the reverse order of removal.
Checking Radiator CapEBS00BB2
●Check that there is no dirt or damage on the valve seat of the radiator cap negative-pressure valve.
●Check that there are no unusualness in the opening and closing
conditions of the negative-pressure valve.
●Pull the negative pressure valve to open it.
●Check that it close completely when released.
PBIC0238E
1. Radiator fan motors 2. Radiator fan shroud 3. Radiator fan
SMA967B
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![NISSAN X-TRAIL 2001 Service Repair Manual CO-34
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RADIATOR
●Check radiator cap relief pressure.
●When connecting the radiator cap to the tester, apply engine
coolant to the cap seal part.
●Replace the radiator cap if NISSAN X-TRAIL 2001 Service Repair Manual CO-34
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RADIATOR
●Check radiator cap relief pressure.
●When connecting the radiator cap to the tester, apply engine
coolant to the cap seal part.
●Replace the radiator cap if](/manual-img/5/57405/w960_57405-339.png)
CO-34
[YD22DDTi]
RADIATOR
●Check radiator cap relief pressure.
●When connecting the radiator cap to the tester, apply engine
coolant to the cap seal part.
●Replace the radiator cap if there is an unusualness in the nega-
tive-pressure valve, or if the open-valve pressure is outside of
the standard values.
Checking RadiatorEBS00BRH
Check radiator for mud or clogging. If necessary, clean radiator as follows.
●Be careful not to bend or damage the radiator fins.
●When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator
shroud and horns. Then tape the harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downwards.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from the radiator.
4. Blow air into the back side of radiator core vertically downwards.
●Use compressed air lower than 490 kPa (4.9 bar 5 kg/cm2 , 71psi) and keep distance more than 30
cm(11.8 in).
5. Blow air again into all the radiator core surface once per minute until no water sprays out. 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)
SLC135B
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RADIATOR (ALUMINUM TYPE)
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RADIATOR (ALUMINUM TYPE)PFP:21460
Disassembly and AssemblyEBS00BB3
PREPARATION
1. Attach the spacer to the tip of the radiator plate pliers A.
Spacer specification: 1.5 mm (0.059 in) thick x 18 mm (0.71 in)
wide x 8.5 mm (0.335 in) long.
2. Make sure that when radiator plate pliers A are closed dimen-
sion H′′ is approx. 7.6 mm (0.299 in).
3. Adjust dimension H′′ with the spacer, if necessary.
DISASSEMBLY
1. Remove upper or lower tanks with Tool.
SBIA0386E
SLC655C
SLC903
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CO-36
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RADIATOR (ALUMINUM TYPE)
●Grip the crimped edge and bend it upwards so that Tool slips
off.
Do not bend excessively.
●In areas where Tool cannot be used, use a screwdriver to
bend the edge up.
Be careful not to damage tank.
2. Remove sealing rubber.
3. Make sure the edge stands straight up.
4. Remove oil cooler from tank. (A/T model only)
ASSEMBLY
1. Install oil cooler. (A/T model only)
Pay attention to direction of conical washer.
SLC893
SLC930
SLC931
SBIA0419E
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2. Clean contact portion of tank.
3. Install sealing rubber.
Push it in with fingers.
Be careful not to twist sealing rubber.
4. Caulk tank in specified sequence with Tool.
SLC932
SLC917A
SLC904
SLC896
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CO-38
[YD22DDTi]
RADIATOR (ALUMINUM TYPE)
●Use pliers in the locations where Tool cannot be used.
5. Make sure that the rim is completely crimped down.
6. Confirm that there is no leakage.
Refer to Inspection.
INSPECTION
1. Apply pressure with Tool.
WARNING:
To prevent the risk of the hose coming undone while under
pressure, securely fasten it down with a hose clamp.
Attach a hose to the oil cooler to seal its inlet and outlet.
(A/T model only)
2. Check for leakage by soaking radiator in water container.
SLC897
Standard height “H”: 8.0 - 8.4 mm (0.315 - 0.331 in)
SLC554A
Specified pressure value:
157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC933
SLC934