Water Pump Replacement LA1

1. Drain the cooling system until the coolant is below the level of the water pump. Refer to Cooling System Draining and Filling .



2. Remove the drive belt guard.
3. Loosen the water pump pulley bolts.
4. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 3.4L.



5. Remove the water pump pulley bolts.
6. Remove the water pump pulley.



7. Remove the water pump bolts.
8. Remove the water pump.
9. Remove the water pump gasket.
10. Clean the water pump mating surfaces.

1. Install the water pump gasket.
2. Install the water pump.

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. Install the water pump bolts.

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




4. Install the water pump pulley.
5. Install the water pump pulley bolts.
6. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 3.4L.

Tighten
Tighten the water pump pulley bolts to 25 N·m (18 lb in).




7. Install the drive belt guard.
8. Fill the cooling system. Refer to Cooling System Draining and Filling .

Water Pump Replacement LY7

Tools Required

EN 46104 Water Pump Pulley Holding Tool

1. Drain the cooling system until the coolant is below the water pump. Refer to Cooling System Draining and Filling .
2. Remove the accessory drive belt from the water pump. Refer to Drive Belt Replacement in Engine Mechanical - 3.6L (LY7).



3. Use the EN 46104 in order to retain the water pump pulley.



4. Remove the water pump pulley bolts and the water pump pulley.



5. Remove the water pump bolts.
6. Remove the water pump.
7. Remove and discard the water pump gasket.
8. Clean the water pump sealing surfaces.

1. Install the NEW water pump gasket.
2. Install the water pump.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the water pump bolts.

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




4. Install the water pump pulley.



5. Use the EN 46104 in order to retain the water pump pulley.
6. Install the water pump pulley bolts.

Tighten
Tighten the water pump pulley bolts to 12 N·m (106 lb in).

7. Install the accessory drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 3.6L (LY7).
8. Fill the cooling system. Refer to Cooling System Draining and Filling .