For 1990-2009 cars

1. Add sealer GM P/N 12346004 (Canadian P/N 10953480) to the plug threads.

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.

2. Install the engine block oil gallery plug to rear of block.

Tighten
Tighten the engine block oil gallery plug to 80 N·m (40 lb ft).

3. Add sealer GM P/N 12346004 (Canadian P/N 10953480) to the plug threads.
4. Install the engine block oil gallery plugs to front and left of block.

Tighten

• | Tighten the side engine block oil gallery plugs to 35 N·m (26 lb ft).

• | Tighten the single side engine block oil gallery plug to 80 N·m (40 lb ft).

5. Add sealer GM P/N 12346004 (Canadian P/N 10953480) to the EVAP solenoid bolt threads.

Tighten
Tighten the EVAP solenoid bolt to 10 N·m (89 lb in).

6. Install the knock sensor.

Tighten
Tighten the knock sensor to 25 N·m (18 lb ft).

7. Add sealer GM P/N 12346004 (Canadian P/N 10953480) to the crankshaft position sensor bolt.
8. Install the crankshaft position sensor and bolt.

Tighten
Tighten the crankshaft position sensor bolt to 10 N·m (89 lb in).

9. Install the oil pressure switch.

Tighten
Tighten the oil pressure switch to 20 N·m (15 lb ft).