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Pinpoint Test C: The Engine Does Not Reach Normal Operating Temperature

WARNING: This page is about a different car, the 2005 Mercury Sable and 2005 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
  1. C1 CHECK THE ENGINE TEMPERATURE 
    • Key in START position.

      Start the engine and allow the engine to idle for 10 minutes.

    • Key in OFF position.

      Feel the upper and lower radiator hoses.

    • Are the upper and lower radiator hoses cold? 
    • Yes  : CARRY OUT thermostat component tests.
    • No  : REFER to INSTRUMENT CLUSTER for diagnosis and testing of the engine coolant temperature gauge.
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