Kia Forte: Thermostat Inspection

1.	Immerse the thermostat in water and gradually heat the water.

Check the valve opening temperature.

If the valve opening temperature is not as specified, replace the thermostat.

Valve opening temperature:

88 ± 1.5°C (190.4 ± 34.7°F)

Full opening temperature: 100°C (212°F)

Check the valve lift.

If the valve lift is not as specified, replace the thermostat.

Valve lift : 8 mm (0.3 in.) or more at 100°C (212°F)

Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. Do not remove the ...

Symptoms Possible Causes Remedy Coolant leakage • From the thermostat gasket Check the mounting nu ...

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