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Cooling System Flushing

MATERIAL SPECIFICATIONS

Name  Specification 
Motorcraft® Premium Cooling System Flush
VC-1		 ESR-M14P7-A

Flushing 

WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is 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 serious personal injury.
NOTE: To remove rust, sludge and other foreign material from the cooling system, use cooling system flush that is safe for use with aluminum radiators. This cleaning restores cooling system efficiency and helps prevent overheating. A pulsating or reversed direction of flushing water will loosen sediment more quickly than a steady flow in the normal coolant flow direction. In severe cases where cleaning solvents will not clean the cooling system efficiently, it will be necessary to use the pressure flushing method using cooling system flusher. Dispose of old coolant and flushing water contaminated with antifreeze and cleaning chemicals in accordance with local, state or federal laws.
  1. Add Premium Cooling System Flush to the cooling system and follow the directions on the package.
  2. Drain the cooling system. For additional information, refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING .
  3. Remove the radiator. Refer to RADIATOR .
  4. NOTE: Radiator internal pressure must not exceed 138 kPa (20 psi). Damage to the radiator can result.

    Backflush the radiator with radiator turned so the upper radiator hose is at the top and with a high-pressure hose in the upper hose location.

  5. NOTE: The thermostat and housing are serviced as an assembly.

    Remove the thermostat housing. Refer to THERMOSTAT HOUSING - 1.6L GTDI , THERMOSTAT HOUSING - 2.0L GTDI , or THERMOSTAT HOUSING - 2.5L .

  6. Backflush the engine. Position the high-pressure water hose into the engine through the lower radiator hose and backflush the engine.
  7. NOTE: The thermostat and housing are serviced as an assembly.

    Install the thermostat housing. Refer to THERMOSTAT HOUSING - 1.6L GTDI , THERMOSTAT HOUSING - 2.0L GTDI , or THERMOSTAT HOUSING - 2.5L .

  8. Install the radiator. Refer to RADIATOR .
  9. Fill and bleed the cooling system. For additional information, refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING .
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