Draining Fluids and Oil Filter Removal L98, LS2
- Remove the oil pan drain plug (1).
- Drain the engine oil into an appropriate container.
- Remove the engine oil filter (2).
- Remove the right side rear engine block coolant drain
hole plug and washer (1).
Draining Fluids and Oil Filter Removal LS3
- Remove the oil pan drain plug (430) with O-ring (429).
- Remove the engine oil filter (437).
- Remove the right side rear engine block coolant drain hole plug (146) with washer (145).
- Remove the engine block coolant heater (114) with washer (115).