Flushing
1. Drain the cooling system.
2. Remove the water thermostat.
3. Install the water hose connection without the water thermostat.
4. Note: Refer to the cooling system Flush-All Flusher Operating Instructions for specific vehicle hook-up.
Using the special tools, flush the engine and radiator.
Use Ford Premium Cooling System Flush F1AZ-19A503-A or equivalent meeting Ford specification ESR-M14P7-A for vehicles filled with Premium Engine Coolant E2FZ-19549-AA (CXC-10 in Canada, F5FZ-19549-CC in Oregon) or equivalent meeting Ford specification ESE-M97B44-A (green color).
5. install the water thermostat.
6. Backflush the heater core if necessary.
7. Fill the cooling system.