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Home >> Ford >> 2006 >> Explorer 4.0 E, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling >> General Procedures >> Cooling System Flushing

Cooling System Flushing

MATERIAL

Item Specification
Premium Cooling System Flush VC-1 ESR-M14P7-A

    All vehicles 

    WARNING: To avoid personal injury, do not unscrew the radiator cap while the engine is operating or hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in personal injury.
  1. Drain the cooling system. For additional information, refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING .

    2. Vehicles equipped with a 4.0L SOHC engine 

  2. Remove the bolts, thermostat housing cover and thermostat. Install the thermostat housing cover and bolts without the thermostat.
    • Tighten to 10 Nm (89 lb-in).
      Fig 1: Locating Thermostat Housing Cover Bolts
      G04639174Courtesy of FORD MOTOR CO.

    3. Vehicles equipped with a 4.6L (3V) engine 

  3. Remove the throttle body. For additional information, refer to FUEL CHARGING & CONTROLS - 4.6L (3V) .
  4. Disconnect the fuel vapor hose.
    Fig 2: Locating Fuel Vapor Hose
    G04639175Courtesy of FORD MOTOR CO.
  5. Remove the bolts, thermostat housing cover and thermostat. Install the thermostat housing cover, the O-ring seal and the bolts without the thermostat.
    • Tighten to 10 Nm (89 lb-in).
      Fig 3: Locating Thermostat Housing Cover Bolts
      G04639176Courtesy of FORD MOTOR CO.

    6. All vehicles 

  6. Using a suitable cooling system flushing tool, flush the engine and radiator.
    • Use cooling system flush.

    7. Vehicles equipped with a 4.0L SOHC engine 

    NOTE: Prior to installing the thermostat, inspect the thermostat housing cover O-ring seal and install a new gasket if necessary.
  7. Install the thermostat, O-ring seal, thermostat housing cover and bolts.
    • Tighten to 10 Nm (89 lb-in).
      Fig 4: Locating Thermostat Housing Cover Bolts
      G04639177Courtesy of FORD MOTOR CO.

    8. Vehicles equipped with a 4.6L (3V) engine 

    NOTE: Prior to installing the thermostat, inspect the thermostat housing cover O-ring seal and install a new O-ring seal if necessary.
  8. Install the thermostat, O-ring seal, thermostat housing cover and bolts.
    • Tighten to 10 Nm (89 lb-in).
      Fig 5: Locating Thermostat Housing Cover Bolts
      G04639178Courtesy of FORD MOTOR CO.
  9. Connect the fuel vapor hose.
    Fig 6: Locating Fuel Vapor Hose
    G04639179Courtesy of FORD MOTOR CO.
  10. Install the throttle body. For additional information, refer to FUEL CHARGING & CONTROLS - 4.6L (3V) .

    11. All vehicles 

  11. Fill and bleed the cooling system. For additional information, refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING .
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