Oil Filter Adapter: Service and Repair

Oil Filter Adapter-4x4

Removal

1. CAUTION: The air suspension switch must be turned off prior to raising the vehicle. Failure to do so can result in unexpected inflation or deflation of the air springs, which could result in shifting of the vehicle during the repair operation.

If equipped, turn the air suspension switch off.
2. With the vehicle in NEUTRAL, position it on a hoist.
3. Drain the engine cooling system.





4. Remove the drain plug and drain the engine oil.





5. Remove the pin-type retainers and the radiator lower air deflector.





6. Remove the oil filter.





7. Disconnect the lower radiator hose from the oil filter adapter.





8. Disconnect the degas bottle hose from the oil filter adapter.





9. Remove the bolts and the oil filter drip shield.





10. Remove the four bolts and lower the oil filter adapter slightly.





11. Disconnect the oil pressure switch electrical connector and remove the oil filter adapter.
^ Discard the oil filter adapter gasket.


Installation
1. Clean and inspect the cylinder block and oil filter adapter mating surfaces.





2. Roughly position the oil filter adapter in the vehicle and connect the oil pressure switch electrical connector.





3. Position a new oil filter adapter gasket and the oil filter adapter, and install the four bolts.





4. Install the degas bottle hose on the oil filter adapter.





5. Install the lower radiator hose on the oil filter adapter.





6. Lubricate the seal with clean engine oil and install a new oil filter.





7. Install the oil filter drip shield.





8. Position the radiator lower air deflector and install the pin-type retainers.





9. Install the drain plug.
10. Lower the vehicle.
11. Fill the engine with clean engine oil.
12. Fill the engine cooling system.
13. Start the engine and inspect for leaks.
14. If equipped, turn on the air suspension switch.