Flushing
Engine and Radiator Flushing1. WARNING: Do not open the cooling system while it is hot or while the engine is running.
Drain the cooling system.
2. Remove the water thermostat.
3. Install the water thermostat housing without the water thermostat.
4. NOTE: Refer to the cooling system flusher manufacturer's operating instructions for specific vehicle hook-up.
Use an appropriate cooling system flusher to flush the engine and radiator.
Use premium cooling system flush.
5. Install the water thermostat.
6. Backflush the heater core.
7. Fill the cooling system.