2003 NISSAN X-TRAIL Service Repair Manual

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Page 353 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual WATER PUMP
CO-21
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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

Page 354 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CO-22
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THERMOSTAT AND WATER CONTROL VALVE

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

Page 355 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual THERMOSTAT AND WATER CONTROL VALVE
CO-23
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INSPECTION AFTER REMOVAL
Place a string so that it is caught in the valves of thermostat and
water control valve. Immerse ful

THERMOSTAT AND WATER CONTROL VALVE
CO-23
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INSPECTION AFTER REMOVAL
Place a string 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 full open valve lift amount.
NOTE:
The full open valve lift amount standard temperature for water
control valve is the reference value.
After checking the full open 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)
Full open valve liftMore than 8 mm/ 95°C
(0.315 in/ 203°F)More than 8 mm/ 108°C
(0.315 in/ 226°F)
Valve closing temperature More than 77°C (171°F) More than 90°C (194°F)
PBIC0157E
PBIC0158E

Page 356 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CO-24
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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00KOP
CAPACITY
Unit: (lmp qt)
THERMOSTAT
WATER CONTROL VALVE
RADIATOR
Unit: kPa

Page 357 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual PRECAUTIONS
CO-25
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[YD22DDTi]PRECAUTIONSPFP:00001
Precautions For Liquid GasketEBS01276
LIQUID GASKET APPLICATION PROCEDURE
1. Remove old liquid gasket adhering

Page 358 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CO-26
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PREPARATION

PREPARATIONPFP:00002
Special Service ToolsEBS00BAV
Commercial Service ToolsEBS011UY
Tool number
Tool nameDescription
WS39930000
Tube presserPressing the tube of liquid g

Page 359 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual OVERHEATING CAUSE ANALYSIS
CO-27
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OVERHEATING CAUSE ANALYSISPFP:00012
Troubleshooting ChartEBS00BAW
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor he

Page 360 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CO-28
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OVERHEATING CAUSE ANALYSIS

Except cool-
ing system
parts mal-
function— Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for
extended time
Dri

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