For 1990-2009 cars

1. Install the engine oil cooler.
2. Apply a 2 mm (0.08 in) bead of RTV silicone sealant, GM P/N 12346240, in the groove around the engine oil cooler cover in place of the old seal.
3. Install the engine oil cooler cover.
4. Install the engine oil cooler cover bolts (2).

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.

Tighten
Tighten the engine oil cooler cover bolts to 30 N·m (22 lb ft).

5. Install the engine oil cooler inlet and outlet nuts (1).

Tighten
Tighten the engine oil cooler inlet and outlet nuts to 20 N·m (15 lb ft).

6. Install the oil cooler outlet line (1) to the engine block.

Tighten
Tighten the oil cooler outlet line (1) to 30 N·m (22 lb ft).

7. Install the oil cooler inlet line (2) to the engine block.

Tighten
Tighten the oil cooler inlet line to 30 N·m (22 lb ft).

8. Install the oil filter cartridge housing to the engine block.

Tighten
Tighten the oil filter cartridge housing to 45 N·m (33 lb ft).

9. Install the 4 new seals.
10. Install the oil cooler inlet line to the engine oil cooler.

Tighten
Tighten the oil cooler inlet line to 30 N·m (22 lb ft).

11. Install the oil cooler outlet line to the engine oil cooler.

Tighten
Tighten the oil cooler outlet line to 30 N·m (22 lb ft).