2001 Buick Regal Oxygen Sensor

You can lightly oil the replacement Oil Filter gasket with clean oil and install the new oil filter, install the new oil filter, install the engine oil drain plug, remove the oil drain pan, the oil level indicator from the oil indicator tube, clean off the indicator end of the oil level indicator with a clean paper towel or cloth, install the oil level indicator into the oil level indicator tube until the oil level indicator handle contacts the top of the oil level indicator tube, remove the oil level indicator from the oil level indicator tube keeping the tip of the oil level indicator down, check the level of the engine oil on the oil level indicator, and re-adjust the oil level by adding or draining the engine oil.

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

You can dip the connecting rod cap bolts in clean engine oil, use clean engine oil to lubricate the bearing surface, install the upper connecting Rod Bearing, install the lower connecting rod bearing to the connecting rod cap, the connecting rod cap, the connecting rod cap bolts, the spark plug(s) to the cylinder(s), the oil pan, and inspect for proper oil pressure, and leaks.