Cooling System Flushing

Cooling System Flushing - Gasoline Engines









1. 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.

Once pressure is released, remove the pressure relief cap.

Drain the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding. Procedures

2. Remove the thermostat. For additional information, refer to Thermostat - 4.6L, 5.4L and 6.8L Service and Repair or Thermostat - 6.0L Diesel Service and Repair.

3. Install the coolant hose connection without the thermostat.

4. NOTE: Refer to the cooling system Flush-All Operating Instructions for specific vehicle hook-up.

Use cooling system Flush-All, Flush Kit Hardware Package and Drain Kit to flush the engine and radiator.

Use Premium Cooling System Flush VC-1 or equivalent meeting Ford specification ESR-M14P7A.

5. Install the thermostat. For additional information, refer to Thermostat - 4.6L, 5.4L and 6.8L Service and Repair or Thermostat - 6.0L Diesel Service and Repair.

6. Fill the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding. Procedures