Oil Pan Cleaning and Inspection

Fig 1: Oil Pan Cleaning And Inspection

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Thoroughly clean the oil pans and mating surfaces. Inspect each component, O-rings, and fasteners, and replace as necessary. Remove all sludge and oil deposits. Inspect the oil pan for cracking near the pan rail and the transmission mounting points. Inspect the oil pan for cracking resulting from impact or flying road debris.
1	Upper Oil Pan NOTE: Component may vary depending on model.
2	Lower Oil Pan NOTE: Component may vary depending on model.
3	Engine Oil Drain Plug
4	Engine Oil Drain Plug Washer NOTE: It is only necessary to replace the washer if inspection indicates damage is present.
5	Oil Pan Locating Pins NOTE: It is not necessary to remove the locating pins unless the inspection indicates replacement.
6	Engine Oil Level Indicator Switch O-ring Seal
7	Engine Oil Level Indicator Switch
8	Engine Oil Level Indicator Switch Bolt CAUTION: Refer to Fastener Caution . Tighten 10 N.m (89 lb in)
9	Engine Oil Level Indicator Switch Connector Retainer
10	Oil Pan Baffle
11	Oil Pan Baffle Bolt Tighten 10 N.m (89 lb in)