QX56 AWD V8-5.6L (VK56DE) (2005)
Thermostat: Testing and Inspection
INSPECTION AFTER REMOVAL
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Place a thread so that it is caught in the valve of the thermostat. Immerse fully in a container filled with water. Heat while stirring.
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The valve opening temperature is the temperature at which the valve opens and falls from the thread.
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Continue heating. Check the full-open lift amount.
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After checking the full-open lift amount, lower the water temperature and check the valve closing temperature.
Standard Values
INSPECTION AFTER INSTALLATION
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Check for leaks of the engine coolant. Refer to "CHECKING COOLING SYSTEM FOR LEAKS".
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Start and warm up the engine. Visually check for leaks of the engine coolant.