Water Pump Replacement RPO LNJ

Special Tools

J 39914 Serpentine Belt Tensioner Unloader

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



2. Loosen the water pump pulley bolts (4).
3. Using the J 39914 rotate the drive belt tensioner (8) to release the tension on the drive belt.
4. Remove the drive belt from the right idler pulley (2).
5. Carefully release the J 39914 to relieve the drive belt tensioner spring tension.
6. Remove the J 39914 from the drive belt tensioner (8).



7. Remove the water pump pulley bolts (2).
8. Remove the water pump pulley (1).



9. Remove the water pump bolts (3).
10. Remove the water pump (1).
11. Remove the water pump gasket (2).
12. Clean the water pump mating surfaces.

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

Notice: Refer to Fastener Notice in the Preface section.

3. Install the water pump bolts (3).

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




4. Install the water pump pulley (1). Loosely install the pulley bolts (2).



5. Insure the drive belt is properly centered on all the pulleys except the right idler puller (3).
6. Using the J 39914 rotate the drive belt tensioner away from the drive belt.
7. Install the drive belt to the right idler pulley (2).
8. Carefully release the J 39914 allowing the drive belt tensioner (8) to come in contact with the drive belt.
9. Remove the J 39914 from the drive belt tensioner (8).
10. Inspect the drive belt to insure the belt is properly centered on all the pulleys (1-8).
11. Tighten the water pump pulley bolts.

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

12. Fill the cooling system. Refer to Cooling System Draining and Filling .
13. Inspect the cooling system for leaks.

Water Pump Replacement RPO LY7

Special Tools

EN 46104 Water Pump Pulley Holding Tool

1. Drain the cooling system. Refer to Cooling System Draining and Filling .
2. Remove the drive belt. Refer to Drive Belt Replacement .



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



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



6. Remove the water pump bolts.
7. Remove the water pump.
8. Remove and discard the water pump seal.
9. Carefully clean the water pump sealing surfaces.

1. Install a NEW water pump seal.
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 and the water pump pulley bolts.



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 10 N·m (89 lb in).

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