Kia Rio: Inspection

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

Check the valve opening temperature.

Valve opening temperature : 82±1.5°C (179.6±2.7°F)

Full opening temperature : 95°C (203°F)

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

Check the valve lift.

Valve lift : 8mm(0.3in) or more at 95°C (203°F)

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

Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. ...

1. Place the thermostat in the block. Install the thermostat (B) with the jiggle valve upward. 2. Install the water inlet fitting (A). ...