2001 NISSAN X-TRAIL radiator

RADIATOR
CO-13
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●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 RadiatorEBS00KOL
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

CO-14
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RADIATOR (ALUMINUM TYPE)
RADIATOR (ALUMINUM TYPE)
PFP:21460
Disassembly and AssemblyEBS00KOM
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

RADIATOR (ALUMINUM TYPE)
CO-15
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●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

CO-16
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RADIATOR (ALUMINUM TYPE)
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

RADIATOR (ALUMINUM TYPE)
CO-17
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●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 CO-17, "
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

CO-18
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WATER PUMP
WATE R P U M P
PFP:21020
Removal and InstallationEBS00KON
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator.
REMOVAL
Water Pump Removal
1. Drain engine coolant. Refer to CO-9, "DRAINING ENGINE COOLANT" .
CAUTION:
Perform when the engine is cold.
2. Remove the following parts.
●Engine undercover
●Alternator, water pump and air compressor belt. Refer to EM-12, "DRIVE BELTS" .
3. Remove water pump.
●Engine coolant will leak from the cylinder block, so have a receptacle ready below.
CAUTION:
●Handle the water pump vane so that it does not contact any other parts.
●Water pump cannot be disassembled and should be replaced as a unit.
Water Pump Housing Removal
1. Perform step 1 and 2 of “Water Pump Removal”.
2. Remove alternator.
3. Remove oil level gauge.
CAUTION:
Plug the oil level gauge guide opening to prevent oil pan from entering foreign materials.
4. Remove bolts mounting water pipe.
5. Remove water pump housing.
Water Pipe Removal
1. Remove water pump housing.
2. Remove exhaust manifold and three way catalyst assembly. Refer to EM-24, "
EXHAUST MANIFOLD
AND THREE WAY CATALYST" .
KBIA0154E
1. Water pump 2. Gasket 3. Water pump housing
4. Water pipe

WATER PUMP
CO-19
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3. Remove water pipe.
INSPECTION AFTER REMOVAL
●Visually check that there is no significant dirt or rusting on the
water pump body and vane.
●Check that there is no looseness in the vane shaft, and that it
turns smoothly when rotated by hand.
●If there are any unusualness, replace the water pump assembly.
INSTALLATION
●Install in the reverse order of removal
●When inserting water pipe end to cylinder block, apply a neutral detergent to o-ring. Then insert it immedi-
ately.
INSPECTION AFTER INSTALLATION
Check for engine coolant leaks using radiator cap tester. Refer to CO-9, "CHECKING RADIATOR SYSTEM
FOR LEAKS" .
KBIA0155E

CO-20
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THERMOSTAT AND WATER CONTROL VALVE
THERMOSTAT AND WATER CONTROL VALVE
PFP:21200
Removal and InstallationEBS00KOO
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator.
REMOVAL
Thermostat Removal
1. Drain engine coolant. Refer to CO-9, "DRAINING ENGINE COOLANT" .
CAUTION:
Perform when the engine cold.
2. Disconnect radiator lower hose at water inlet side.
3. Remove water inlet and thermostat.
Water Control Valve Removal
1. Drain engine coolant. Refer to CO-9, "DRAINING ENGINE COOLANT" .
2. Disconnect upper radiator hose, heater pipe and heater hose at water outlet side.
3. Remove water outlet.
4. Remove water control valve.
PBIC0239E
1. Thermostat 2. Water inlet 3. Water control valve
4. Water outlet 5. Heater hose 6. Engine coolant temperature sensor
7. Heater pipe