2001 Chevy Astro change oil pan

remove and discard engine oil level sensor, if applicable. remove oil pan bolts and nuts. remove pan and gasket. discard old gasket. apply bead of adhesive to both sides of engine front cover to engine block junction at oil pan sealing surfaces. also apply some to crankshaft rear oil seal housing to engine block junction at oil pan sealing surfaces. install new oil pan gasket. install oil pan bolts and nuts. install new oil pan drain plug seal, o -ring, onto the drain plug. install plug into pan and install new oil level sensor, if applicable.