EGR Cooler: Service and Repair

Exhaust Gas Recirculation Coolant Hoses/Pipes Replacement

Removal Procedure





Warning

To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.

1. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) (Service and Repair)Cooling System Draining and Filling (Static Fill) (Service and Repair).
2. Reposition the EGR cooler pipe clamp and remove the EGR cooler pipe hose (4) from the EGR cooler tube.




3. Remove the upper EGR cooler pipe bolt (2).
4. Remove the lower EGR cooler pipe bolt (1).
5. Remove the EGR cooler pipe from the engine.

Installation Procedure




1. Inspect EGR cooling hose (4) and replace as necessary.





Caution: Refer to Fastener Caution (Fastener Caution).

2. Position the EGR cooler pipe and hose (3) to the engine.
Tighten the lower bolt (1) to 9 Nm (80 lb in).




3. Install the EGR cooler pipe hose (4) to the EGR cooler tube and reposition the EGR cooler pipe clamp (3).
4. Tighten the clamp bolt (2) to 9 Nm (80 lb in).
5. Fill the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) (Service and Repair)Cooling System Draining and Filling (Static Fill) (Service and Repair).