Water Pump Replacement 3100 Engine

1. Drain the coolant. 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 - 3.1L.



5. Remove the water pump pulley bolts.
6. Remove the water pump pulley.
7. Remove the water pump attaching bolts.
8. Remove the water pump.
9. Remove the water pump gasket.
10. Clean the water pump mating surfaces.

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




4. Install the water pump pulley. Loosely install the water pump pulley bolts.
5. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 3.1L.
6. Install the water pump pulley bolts.

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

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

Water Pump Replacement 3800 Engine

Tools Required

1. Partially drain the cooling system. Refer to Cooling System Draining and Filling
2. Loosen water pump pulley bolts.
3. Remove drive belt. Refer to Drive Belt Replacement
4. Remove the water pump pulley bolts.
5. Remove water pump pulley.
6. Remove power steering pump mounting bolts and reposition.



7. Remove the water pump bolts.



8. Remove water pump.
9. Remove the water pump gasket.
10. Clean and inspect the water pump mating surfaces.

1. Install the gasket and 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.

2. Install the bolts to the water pump using the J 36660-A

Tighten

•	Tighten the long water pump bolts to 20 N·m (15 lb ft) plus 40 degrees

•	Tighten the short water pump bolts to 15 N·m (11 lb ft) plus 80 degrees.




3. Install the water pump pulley. Loosely install the water pump pulley bolts.
4. Install the power steering pump with mounting bolts. Refer to Power Steering Pump Replacement
5. Install the drive belt. Refer to Drive Belt Replacement
6. Tighten the water pump pulley bolts.

Tighten
Tighten the water pump pulley bolts to 13 N·m(115 lb in)

7. Install the accessory electrical junction block in place.
8. Fill the cooling system. Refer to Cooling System Draining and Filling

Inspect for leaks.