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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 983 (Engine Cooling System -- F150 Pickup) >> Diagnosis And Testing >> Engine Cooling >> Pinpoint Tests >> Pinpoint Test B: The Engine Overheats

Pinpoint Test B: The Engine Overheats

WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. B1 CHECK THE ENGINE COOLANT LEVEL 
    NOTE: If the engine is hot, allow the engine to cool before proceeding.
    • Key in OFF position.
      • WARNING: Never remove the pressure relief cap while the engine is operating or when the cooling system is hot. Failure to follow these instructions can result in damage to the cooling system or engine or personal injury. To avoid having scalding hot coolant or steam blow out of the degas bottle when removing the pressure relief cap, wait until the engine has cooled, then wrap a thick cloth around the pressure relief cap and turn it slowly. Step back while the pressure is released from the cooling system. When you are sure all the pressure has been released, turn and remove the pressure relief cap (still with a cloth). Failure to follow these instructions may result in personal injury.
    • Remove the pressure relief cap.
    • Check the engine coolant level at the degas bottle.
    • Is the engine coolant OK? 
    • Yes  : GO to  B2.
    • No  : REFILL the engine coolant at the degas bottle. GO to PINPOINT TEST A .
  2. B2 CHECK THE COOLANT CONDITION 
    • Check the coolant for contaminants such as rust, corrosion or discoloration.
    • Is the coolant condition OK? 
    • Yes  : GO to  B3.
    • No  : FLUSH the engine cooling system. TEST the system for normal operation.
  3. B3 CHECK FOR AN AIRFLOW OBSTRUCTION 
    • Inspect the A/C condenser core and radiator for obstructions such as leaves or dirt.
    • Is there an obstruction? 
    • Yes  : REMOVE the obstruction. CLEAN the A/C condenser core and radiator. TEST the system for normal operation.
    • No  : GO to B4.
  4. B4 CHECK THE THERMOSTAT OPERATION 
    • Key in START position.
    • Start the engine and allow the engine to run for 10 minutes.
    • Feel the inlet and outlet heater water hoses and the underside of the upper radiator hose.
    • Is the upper radiator hose cold and the heater hoses hot? 
    • Yes  : INSTALL a new thermostat. TEST the system for normal operation.
    • No  : GO to B5.
  5. B5 CHECK THE COOLING FAN OPERATION 
    • Key in OFF position.
    • Carry out the cooling fan clutch component test. Refer to the COMPONENT TESTS .
    • Is the cooling fan clutch operation OK? 
    • Yes  : refer to ENGINE SYSTEM-GENERAL INFORMATION for diagnosis and testing of the engine.
    • No  : INSTALL a new cooling fan clutch. TEST the system for normal operation.
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