2004 Buick Rendezvous Oil Filter

You should raise and suitably support the vehicle, remove the oil filter, remove the oil filter bypass hole plug, insert a flat-bladed tool into the oil filter bypass hole and force the bypass valve out, remove the oil filter bypass valve and remove the Oil Filter Adapter.

You can remove the case side cover, remove the Oil Pump bolts, remove the oil pump from the valve body and inspect the oil pump.

You need to remove the oil pan and the gasket, remove the filter, remove the lip ring seal pressed into the case only if replacement is necessary, then inspect the screen for any metal particles, clutch-facing material, rubber particles, or engine coolant, then determine the source of the contamination if foreign material is evident, and clean the screen and allow the screen to dry completely.