For 1990-2009 cars only
- Remove the oil filter fitting and bypass valve, as required. Refer to Oil Filter and Adapter Removal .
- Remove the drain plug (430) and O-ring (429).
- Remove the oil level sensor (727), bolt (751), and O-ring (728).
- Clean the oil pan in solvent. Be sure to thoroughly clean all of the oil passages and recesses of the pan.
- Dry the oil pan with compressed air.
- Inspect the oil pan for the following conditions:
- Inspect the displacement on demand oil pressure relief valve for proper operation.
- The valve (455) is press-fit in the oil pan and is serviceable separately.
Important: When installing a NEW oil pan gasket, it is not necessary to install the rivets that retain the NEW gasket to the pan.
Caution: Refer to Safety Glasses Caution in the Preface section.
| • | Damaged gasket surfaces |
| • | Restrictions within the oil passages of the pan |
| • | Threaded bolt holes for damage |
Lightly depress the valve (2). The valve spring (1) should seat the valve to the proper closed position.
