Oil Cooler: Service and Repair

Oil Cooler





Oil Cooler - Early Build Engines (View 1 of 2)










Oil Cooler - Early Build Engines (View 2 of 2)










Oil Cooler - Late Build Engines









Removal and Installation

All engines

1. WARNING: Before servicing a vehicle equipped with a fire suppression system, depower the system by following the procedure in Fire Suppression System. Failure to follow the instructions may result in serious personal injury. Procedures

With the vehicle in NEUTRAL, position it on a hoist.

2. Drain the cooling system.

3. Remove and discard the oil filter.
- To install, lubricate the new oil filter O-ring seal with clean engine oil.

Early build engines

4. Remove the oil cooler hose bolt and remove the oil cooler hoses from the oil filter adapter.
- To install, tighten to 10 Nm (89 lb-in).

5. Disconnect the 2 coolant hoses from the oil cooler assembly.

6. NOTICE: If metal or aluminum material is present in the oil cooler or oil cooler hoses, mechanical concerns exist. Severe damage to the engine may occur. Failure to follow this instruction may result in additional engine damage.

Remove the oil cooler assembly from the oil cooler mounting bracket and inspect.

Late build engines

7. NOTICE: For correct installation, the white lines on the coolant hoses must be aligned with the black dots on the oil cooler tubes. If the black dots are not visible, mark the oil cooler tube with a permanent marker before disconnecting the hoses. Failure to follow this instruction may result in damage to the coolant hoses.

Disconnect the 2 coolant hoses from the oil cooler.

- To install, align the white lines on the coolant hoses with the black dots on the cooler tubes.

8. NOTICE: If metal or aluminum material is present in the oil cooler, mechanical concerns exist. Severe damage to the engine may occur. To diagnose mechanical concerns, refer to Engine. Failure to follow this instruction may result in additional engine damage.

Remove the oil cooler mounting bolt and the oil cooler and inspect.
- To install, lubricate the oil cooler-to-oil filter adapter O-ring seal with clean engine oil.

- To install, tighten to 46 Nm (34 lb-ft).

All engines

9. WARNING: If the vehicle is equipped with a fire suppression system, repower the system. For important safety warnings and procedures, refer to Fire Suppression System. Failure to follow these instructions may result in serious personal injury. Procedures

To install, reverse the removal procedure. If equipped with a fire suppression system, repower the system.