FixVault

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

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. C1 CHECK THE ENGINE TEMPERATURE 
    • Start the engine and allow the engine to idle for ten minutes.
    • Key in OFF position.
    • Feel the inlet and heater hoses and the underside of the upper radiator hose.
    • Are the upper radiator hose and the heater hoses cold? 
    • Yes  : INSTALL a new thermostat. TEST the system for normal operation.
    • No  : GO to INSTRUMENT CLUSTER for diagnosis and testing of the engine coolant temperature gauge.