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Thermostat Inspection [L5]

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the thermostat for the following.
    WARNING:
    • During inspection, the thermostat and water are extremely hot and can cause severe burns. Do not touch the thermostat and water.
    • The valve should not open under normal temperature.
    • Opening temperature and valve lift
      • If there is a malfunction, replace the thermostat.

    Thermostat initial-opening temperature 

    80-84°C {176-183°F} 

    Thermostat full-open temperature 

    97°C {207°F} 

    Thermostat full-open lift 

    More than 8.0 mm {0.31 in}