2008 6.6L Duramax – OIL FILTER ADAPTER AND OIL COOLER ASSEMBLY CLEANING AND INSPECTION

1. Clean the coolant tube.
2. Inspect the coolant tube for cracks.
3. Inspect the coolant tube mating surfaces for damage.

4. Clean the oil filter adapter.
5. Inspect the oil filter adapter mating surfaces for damage.
6. Replace the O-rings.