Water Pump: Service and Repair

Coolant Pump - 6.2L













Removal

1. Drain the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding Service and Repair.

2. Remove the Air Cleaner (ACL) outlet tube.

3. Loosen the 4 coolant pump pulley bolts.

4. Remove the accessory drive belt.

5. Remove the 4 bolts and the coolant pump pulley.

6. Remove the 4 bolts and the coolant pump. Discard the O-ring seal.

7. Inspect the sealing surfaces and clean with metal surface prep. Follow the directions on the packaging.

Installation

1. NOTICE: Align the bolt holes with the bosses prior to insertion of the coolant pump and insert the pump straight into the coolant pump cavity. Do not rotate the coolant pump once installed in the coolant pump cavity or the O-ring seal can be damaged, causing the coolant pump to leak.
NOTE: Install a new O-ring seal and lubricate with clean engine coolant.
Install the coolant pump and the 4 bolts. Tighten the 4 bolts in a criss-cross pattern in 3 stages.
- Stage 1: Finger-tighten the bolts.

- Stage 2: Tighten the bolts to 20 Nm (177 lb-in).

- Stage 3: Tighten the bolts an additional 45 degrees.


2. Install the coolant pump pulley and loosely install the 4 bolts.

3. Install the accessory drive belt.

4. Tighten the 4 coolant pump pulley bolts.
- Tighten to 25 Nm (18 lb-ft).


5. Install the ACL (Air Cleaner) outlet pipe.

6. Fill the engine cooling system. For addition information, refer to Cooling System Draining, Filling and Bleeding Service and Repair.