Cooling System - Reverse Flushing
REVERSE FLUSHING ENGINE - DIESEL1. Drain the cooling system.
2. Disconnect the radiator lower hose from the water inlet connection.
Typical Reverse-flushing-5.9L Diesel:
3. Remove the heater inlet hose from the tube.
4. Attach water supply hose to heater tube.
5. Back-flush the engine until clean water exits the water pump inlet.
CHEMICAL CLEANING
In some instances, use a radiator cleaner before flushing. This will soften scale and other deposits and aid the flushing operation.
CAUTION: Follow the manufacturers instructions when using these products.