Radiator Replacement (Heavy Duty Cooling)

Radiator Replacement (LH2 Heavy Duty Cooling)

Special Tools

J 38185 Hose Clamp Pliers

Removal Procedure

1. Drain the coolant. Refer to Cooling System Draining and Filling (Static Fill) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (GE 47716) (Cooling System Draining and Filling (GE 47716)).
2. Remove the electric cooling fan. Refer to Engine Coolant Fan Replacement (LH2 Heavy Duty Cooling) (Engine Coolant Fan Replacement (Heavy Duty Cooling))Engine Coolant Fan Replacement (LH2 without V03, LLT) (Engine Coolant Fan Replacement (without V03,)).




3. Remove the upper condenser mounting bolts.




4. Remove the lower condenser mounting bolts.




5. Disconnect the lower retaining pins of the side air baffle from the radiator.

Note: Reposition the condenser to access the transmission oil cooler mounting bolts.

6. Remove the transmission oil cooler (TOC) mounting bolts.
7. Lower the vehicle.
8. Remove the fan shroud. Refer to Engine Coolant Fan Shroud Replacement (LH2 with V03) (Service and Repair)Engine Coolant Fan Shroud Replacement (LH2 without V03, LLT) (Service and Repair).
9. Use J 38185 to disengage the tension on the hose clamp. Remove the radiator outlet hose from the radiator.




10. Use J 38185 to disengage the tension on the hose clamp. Remove the radiator inlet hose from the radiator.




11. Use J 38185 to disengage the tension on the hose clamp. Remove the surge tank inlet hose from the radiator.




12. Remove the radiator support bracket bolts.
13. Remove the radiator support brackets.
14. Disconnect the upper air baffle retaining pins from the radiator.
15. Remove the radiator.

Installation Procedure

1. Install the radiator.
2. Connect the upper air baffle retaining pins to the radiator.
3. Install the radiator support brackets.





Caution: Refer to Fastener Caution (Fastener Caution).

4. Install the radiator support bracket bolts and tighten to 9 Nm (80 lb in).




5. Connect the surge tank inlet hose to the radiator. Use J 38185 to position the surge tank inlet hose clamp to secure the hose.




6. Connect the radiator inlet hose to the radiator. Use J 38185 to position the radiator inlet hose clamp to secure the hose.
7. Connect the radiator outlet hose to the radiator. Use J 38185 to position the radiator outlet hose clamp to secure the hose.
8. Install the fan shroud. Refer to Engine Coolant Fan Shroud Replacement (LH2 with V03) (Service and Repair)Engine Coolant Fan Shroud Replacement (LH2 without V03, LLT) (Service and Repair).
9. Raise and support the vehicle.
10. Install the TOC mounting bolts and tighten to 5 Nm (44 lb in).




11. Connect the lower retaining pins of the side air baffle to the radiator.




12. Install the lower condenser mounting bolts and tighten to 5.4 Nm (48 lb in).




13. Install the upper condenser mounting bolts and tighten to 5.4 Nm (48 lb in).
14. Install the electric cooling fan. Refer to Engine Coolant Fan Replacement (LH2 Heavy Duty Cooling) (Engine Coolant Fan Replacement (Heavy Duty Cooling))Engine Coolant Fan Replacement (LH2 without V03, LLT) (Engine Coolant Fan Replacement (without V03,)).
15. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (GE 47716) (Cooling System Draining and Filling (GE 47716)).