Cooling System Flushing

Cooling System Flushing





Special Tool(s)

1. WARNING: To avoid personal injury, do not unscrew the coolant pressure relief 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.

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 ProFlush and Fill/Coolant Flush and Fill Operating Instructions for specific vehicle hook-up.

Use cooling system ProFlush and Fill/Coolant Flush and Fill to flush the engine and radiator.
Use premium cooling system flush.





5. Install the water thermostat.

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

Backflush the heater core if necessary.
7. Fill the cooling system.