For 1990-2009 cars

### Removal Procedure

1. Raise and correctly support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Place a drain pan under the engine oil pan in order to catch the oil.
3. Remove the engine oil drain plug and the gasket in order to drain the engine oil.
4. Remove the lower engine splash shield on the right-hand side.
5. Remove the following from the oil pan:

• | The crank sensor bolt

• | The crank sensor (1)

• | The crank sensor harness

• | The sixteen bolts and the two nuts

Notice: Do not damage the oil pan contact surface of the lower cylinder block when removing the oil pan.

6. Remove the engine oil pan.
7. Remove the following components from the lower cylinder block:

• | The oil strainer (2)

• | The O-ring (1)

8. Clean the following components:

• | The inside of the engine oil pan

• | The oil pump strainer screen

• | The mating surfaces of the engine oil pan and the lower cylinder block

### Installation Procedure

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

1. Install the oil pump strainer (2) and a new O-ring to the lower cylinder block. Secure the oil pump strainer using two bolts.

Tighten
Tighten the oil pump strainer to 11 N·m (97 lb in).

2. Apply a continuous bead of silicon sealant GM P/N 12346240 or of an equivalent to the mating surface of the engine oil pan (1).
3. Install the engine oil pan.

Use the following components in order to secure the engine oil pan:

• | 61 bolts

• | 2 nuts

Tighten
Tighten the engine oil pan bolts and the nuts to 11 N·m (97 lb in).

4. Install the lower engine splash shield for the right side.
5. Install the engine oil drain plug and the gasket.

Tighten
Tighten the engine oil drain plug to 35 N·m (26 lb ft).

6. Lower the vehicle.
7. Refill the engine oil to specifications. Refer to Approximate Fluid Capacities in Maintenance and Lubrication.
8. Inspect the oil pressure.