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Home >> Kia >> 2007 >> Rio Base, Standard >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> Engine Overhaul >> Cooling System >> Inspection >> Thermostat

Cooling System: Inspection: Thermostat

  1. Immerse the thermostat in water and gradually heat the water.
    Fig 1: Checking Valve Opening Temperature
    G04803651Courtesy of KIA MOTORS AMERICA, INC.
  2. 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.

  3. 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.

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