Repair Instructions: Flushing

Store used coolant in a properly labeled container. Do not pour used coolant down a drain. Ethylene glycol antifreeze is a very toxic chemical. Do not dispose of coolant into the sewer system or ground water. This is illegal and ecologically unsound.

Various methods and equipment can be used to flush the cooling system. If special equipment is used, such as a back flusher, follow the manufacturer's instruction.

When the cooling system becomes contaminated, the cooling system should be flushed thoroughly to remove the contaminants before the engine is seriously damaged.

1. Drain the cooling system. Refer to Draining and Filling Cooling System (GE 47716 Fill)  or Draining and Filling Cooling System (L26 Static Fill)  or Draining and Filling Cooling System (LY7 Static Fill) .
2. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement .
3. Clean and flush the coolant recovery reservoir with clean, drinkable water.
4. Install the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement .
5. Follow the drain and fill procedure using only clean, drinkable water. Refer to Draining and Filling Cooling System (GE 47716 Fill)  or Draining and Filling Cooling System (L26 Static Fill)  or Draining and Filling Cooling System (LY7 Static Fill) .
6. Run the engine for 20 minutes.
7. Stop the engine.
8. Drain the cooling system. Refer to Draining and Filling Cooling System (GE 47716 Fill)  or Draining and Filling Cooling System (L26 Static Fill)  or Draining and Filling Cooling System (LY7 Static Fill) .
9. Repeat the procedure if necessary, until the fluid is nearly colorless.
10. Fill the cooling system. Refer to Draining and Filling Cooling System (GE 47716 Fill)  or Draining and Filling Cooling System (L26 Static Fill)  or Draining and Filling Cooling System (LY7 Static Fill) .