Radiator: Service and Repair

Radiator Replacement (LH6) (5.3L)

Special Tools
* J 41240 Fan Clutch Remover and Installer
* J 38185 Hose Clamp Pliers

Removal Procedure

1. Drain the coolant from the radiator. Refer to Cooling System Draining and Filling (LH6) (Cooling System Draining and Filling)Cooling System Draining and Filling (LL8) (Cooling System Draining and Filling).
2. Remove the lower radiator support shield, if equipped. Refer to Radiator Support Shield Replacement (Radiator Support Shield Replacement).




3. Remove the transmission cooler lines from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection (Service and Repair) for the 4L60-E/4L65-E transmission.
4. Reposition the outlet radiator hose clamp using J 38185 .
5. Remove the outlet radiator hose (1) from the radiator.
6. Lower the vehicle.




7. Reposition the inlet radiator hose clamp (1) using J 38185 .
8. Remove the inlet radiator hose from the radiator.
9. Remove the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement (Service and Repair).
10. Remove the grille. Refer to Air Inlet Grille Panel Replacement (Service and Repair).
11. Remove the upper radiator to condenser bolts.
12. Remove the coolant recovery line from the radiator.
13. Lift upward on the condenser to remove from the radiator retaining tab.
14. Remove the radiator.

Installation Procedure

1. Install the radiator.
2. Install the condenser to the radiator retaining tab.
3. Install the coolant recovery line to the radiator.

Caution: Refer to Fastener Caution (Fastener Caution).

4. Install the bolts retaining the condenser to the radiator and tighten to 28 Nm (21 ft. lbs.).
5. Install the grille. Refer to Air Inlet Grille Panel Replacement (Service and Repair).
6. Install the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement (Service and Repair).




7. Install the inlet radiator hose to the radiator.
8. Reposition the inlet radiator hose clamp (1) using J 38185 .
9. Raise the vehicle.




10. Install the outlet radiator hose (1) to the radiator.




11. Reposition the outlet radiator hose clamp (1) using J 38185 .
12. Connect the transmission cooler lines to the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection (Service and Repair) for the 4L60-E/4L65-E transmission.
13. Install the lower radiator support shield, if equipped. Refer to Radiator Support Shield Replacement (Radiator Support Shield Replacement).
14. Lower the vehicle.
15. Fill the cooling system. Refer to Cooling System Draining and Filling (LH6) (Cooling System Draining and Filling)Cooling System Draining and Filling (LL8) (Cooling System Draining and Filling).