NISSAN X-TRAIL 2005 Service Repair Manual

RADIATOR (ALUMINUM TYPE)
CO-15
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RADIATOR (ALUMINUM TYPE)PFP:21460
Disassembly and AssemblyEBS00KOM
PREPARATION
1. Attach the spacer to the tip of radiator plate pliers A (special ser-
vice tool).
Spacer specification: 1.5 mm (0.059 in) thick × 18 mm (0.71 in)
wide × 8.5 mm (0.335 in) long.
2. Make sure that when radiator plate pliers A (special service tool) are closed dimension H′′ is approx. 7.6
mm (0.299 in).
3. Adjust dimension H′′ with the spacer thickness, if necessary.
DISASSEMBLY
1. Remove upper and lower tanks with a radiator plate pliers B
(special service tool).
CAUTION:
Do not disassemble lower tank and A/T fluid cooler. (A/T
models)
NOTE:
Regard lower tank and A/T fluid cooler as an assembly. (A/T
models)
1. Upper tank 2. Sealing rubber 3. Core
4. Lower tank 5. Lower tank (with A/T fluid cooler)
PBIC2493E
SLC655C
SLC903

CO-16
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RADIATOR (ALUMINUM TYPE)


Grip the crimped edge and bend it upwards so that radiator
plate pliers B slips off.
CAUTION:
Do not bend excessively.

In areas where radiator plate pliers B cannot be used, use
screwdriver to bend the edge up.
CAUTION:
Be careful not to damage tank.
2. Remove sealing rubber.
3. Make sure the edge stands straight up.
ASSEMBLY
1. Clean contact portion of tank.
SLC893
SLC930
SLC931
SLC932

RADIATOR (ALUMINUM TYPE)
CO-17
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2. Install sealing rubber while pushing it in with fingers.
CAUTION:
Be careful not to twist sealing rubber.
3. Caulk tank in numerical order as shown in the figure with radia-
tor plate pliers A (special service tool).

Use pliers in the locations where plate pliers A cannot be
used.
SLC917A
SLC904
PBIC2076E
SLC897

CO-18
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RADIATOR (ALUMINUM TYPE)

4. Make sure that the rim is completely crimped down.
5. Make sure that there is no leakage.
Refer to CO-18, "
INSPECTION" .
INSPECTION
1. Apply pressure with radiator cap tester adapter (special service
tool) and radiator cap tester (commercial service tool).
WARNING:
To prevent the risk of hose coming undone while under
pressure, securely fasten it down with hose clamp.
CAUTION:
Attach hose to A/T fluid cooler to seal its inlet and outlet.
(A/T models)
2. Check for leakage by soaking radiator in water container with
the testing pressure applied.Standard height “H” : 8.0 - 8.4 mm (0.315 - 0.331 in)
SLC554A
Testing pressure
: 157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC933
SLC934

COOLING FAN
CO-19
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COOLING FANPFP:21140
Removal and InstallationEBS011TD
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-9, "Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
2. Remove air duct (inlet) and air duct assembly. Refer to EM-16, "
AIR CLEANER AND AIR DUCT" .
3. Disconnect radiator hose (upper) at radiator side. Refer to CO-12, "
RADIATOR" .
CAUTION:
Do not spill engine coolant on drive belt.
4. Disconnect harness connectors from fan motors, and move them to aside.
5. Remove radiator cooling fan assembly.
CAUTION:
Be careful not to damage or scratch on radiator core.
INSTALLATION
Installation is the reverse order of removal.
NOTE:
Cooling fans are controlled by ECM. For details, refer to EC-352, "
DTC P1217 ENGINE OVER TEMPERA-
TURE" (WITH EURO-OBD) or EC-755, "DTC P1217 ENGINE OVER TEMPERATURE" (WITHOUT EURO-
OBD).
1. Fan motor (LH) 2. Fan motor (RH) 3. Fan shroud
4. Cooling fan (RH) 5. Cooling fan (LH)
PBIC2593E

CO-20
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COOLING FAN

Disassembly and Assembly EBS01FCL
DISASSEMBLY
1. Remove cooling fans (RH and LH) from fan motors (RH and LH).

Put marks to identify installation positions of cooling fans (RH and LH).
2. Remove fan motors (RH and LH) from fan shroud.

Put marks to identify installation positions of cooling fan motors (RH and LH).
INSPECTION AFTER DISASSEMBLY
Cooling Fan
Inspect cooling fan for crack or unusual bend.

If anything is found, replace cooling fan.
ASSEMBLY
Assembly is the reverse order of disassembly.
CAUTION:
RH and LH cooling fans and fan motors are different. Be careful not to misassemble them.

WATER PUMP
CO-21
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WAT E R P U MPPFP:21020
Removal and InstallationEBS00KON
REMOVAL
1. Drain engine coolant. Refer to CO-9, "Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
2. Remove the following parts.

RH undercover

Drive belt; Refer to EM-13, "DRIVE BELTS" .

Drive belt auto-tensioner; Refer to EM-14, "Removal and Installation of Drive Belt Auto-Tensioner" .
3. Remove water pump.

Engine coolant will leak from cylinder block, so have a receptacle ready below.
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.
4. Remove water pump housing with the following procedure;
a. Remove alternator. Refer to SC-13, "
CHARGING SYSTEM" .
b. Remove oil level gauge and oil level gauge guide. Refer to EM-27, "
OIL PAN AND OIL STRAINER" .
CAUTION:
Plug the oil level gauge guide opening to prevent oil pan from entering foreign materials.
c. Remove mounting bolts for water pipe.
d. Remove water pump housing.
5. Remove exhaust manifold and three way catalyst assembly. Refer to EM-25, "
EXHAUST MANIFOLD
AND THREE WAY CATALYST" .
6. Remove water pipe.
1. Water pump 2. Gasket 3. Gasket
4. Water pump housing 5. Gasket 6. Water pipe
7. O-ring
PBIC2253E

CO-22
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WATER PUMP

INSPECTION AFTER REMOVAL

Visually check if there is no significant dirt or rusting on water
pump body and vane.

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
Note the following, and install in the reverse order of removal.

When inserting water pipe end into cylinder block, apply a neutral detergent to O-ring. Then insert it imme-
diately.
INSPECTION AFTER INSTALLATION

Check for engine coolant leaks using a radiator cap tester adapter (special service tool: EG17650301)
and radiator cap tester (commercial service tool). Refer to CO-9, "
LEAK CHECK" .

Start and warm up engine. Visually check if there is no leaks of engine coolant.
KBIA0155E

THERMOSTAT AND WATER CONTROL VALVE
CO-23
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THERMOSTAT AND WATER CONTROL VALVEPFP:21200
Removal and InstallationEBS00KOO
REMOVAL
1. Drain engine coolant. Refer to CO-9, "Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
2. Disconnect radiator hose (lower) at water inlet side. Refer to CO-12, "
RADIATOR" .
3. Remove water inlet and thermostat.
4. Remove water control valve with the following procedure:
a. Disconnect radiator hose (upper) at water control valve housing (water outlet) side.
b. Disconnect harness connector from engine coolant temperature sensor.
c. Disconnect water hoses.
d. Remove heater pipe and heater hose.
e. After removing water control valve housing (water outlet) and water control valve.
1. Thermostat 2. O-ring 3. Water inlet
4. Water control valve 5. O-ring 6. Gasket
7. Water control valve housing (water outlet) 8. Washer 9. Engine coolant temperature sensor
10. Water hose 11. Heater hose 12. O-ring
13. Heater pipe 14. Water hose 15. Heater hose
PBIC3597E

CO-24
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THERMOSTAT AND WATER CONTROL VALVE

INSPECTION AFTER REMOVAL

Place a thread so that it is caught in the valves of thermostat and
water control valve. Immerse fully in a container filled with water.
Heat while stirring. (The example in the figure shows thermo-
stat.)

The valve opening temperature is the temperature at which the
valve opens and falls from the thread.

Continue heating. Check the maximum valve lift amount.
NOTE:
The maximum valve lift amount standard temperature for water
control valve is the reference value.

After checking the maximum valve lift amount, lower the water
temperature and check the valve closing temperature.
Standard:

If out of the standard, replace either or both thermostat and water control valve.
INSTALLATION
Note the following, and install in the reverse order of removal.
Thermostat and Water Control Valve

Install thermostat with making rubber ring groove fit to thermo-
stat flange with the whole circumference. (The example in the
figure shows thermostat.)
NOTE:
Same procedure is applied for installation of water control valve.

Install thermostat with jiggle valve facing upwards. (The position
deviation may be within the range of 20 degrees as shown in the
figure.)

Install water control valve with the arrow facing up and the frame
center part facing upwards. (The position deviation may be
within the range of 20 degrees as shown in the figure.)
Heater Pipe Installation
Apply a neutral detergent to O-ring, then quickly insert the insertion part of heater pipe into cylinder block.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using a radiator cap tester adapter (special service tool: EG17650301)
and a radiator cap tester (commercial service tool). Refer to CO-9, "
LEAK CHECK" .

Start and warm up engine. Visually check if there is no leaks of engine coolant and A/T fluid (A/T models).
SLC252B
Items Thermostat Water control valve
Valve opening temperature 80.5 - 83.5°C (177 - 182°F) 93.5 - 96.5°C (200 - 206°F)
Maximum valve lift 8 mm/ 95°C (0.315 in/ 203°F) 8 mm/ 108°C (0.315 in/ 226°F)
Valve closing temperature 77°C (171°F) 90°C (194°F)
PBIC0157E
PBIC0158E