Prior to installing the water pump, read the entire procedure. Pay special attention to avoid part damage and to ensure proper sealing.

1. Install the water pump assembly.
2. Install the water pump bolts. Finger tighten the bolts.

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.

3. Tighten the water pump bolts.

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

4. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the water pump drain plug.
5. Install the water pump drain plug, if necessary.

Tighten
Tighten the water pump drain plug to 20 N·m (15 lb ft).




6. Install the water feed tube.
7. Lubricate the feed tube O-ring with antifreeze.
8. Install the water feed tube by twisting and pushing toward the water pump. Take care not to tear or damage the O-ring.
9. Install the thermostat housing to block bolts.

Tighten
Tighten the bolts to 10 N·m (89 lb in).




10. Install the water pipe support bracket and bolts.

Tighten
Tighten the water pipe support bracket bolts to 10 N·m (89 lb in).




11. Install the engine coolant temperature sensor by hand.
12. Tighten the engine coolant temperature sensor.

Tighten
Tighten the engine coolant temperature sensor to 20 N·m (15 lb ft).