891
Thermostat – Inspection
1. Inspect the thermostat at room temperature. If the thermostat is open, it must be
replaced.
2. To check the thermostat is opening at the correct temperature, suspend the
thermostat in a suitable container of water and raise the temperature of the water
until the thermostat opens.
3. Measure the water temperature with an accurate thermometer.
• Refer to the coolant specifications section for the correct thermostat opening
temperature.
4. If the temperature at which thermostat opening takes place is incorrect, replace the
thermostat.
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