Water Pump: Service and Repair

Coolant Pump - 4.6L, 5.4L and 6.8L













Removal

1. Remove the fan and fan clutch. For additional information, refer to Cooling Fan - 4.6L, 5.4L and 6.8L Service and Repair.

2. Loosen the 4 coolant pump pulley bolts.

3. Rotate the tensioner clockwise and remove the accessory drive belt from the coolant pulley.





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

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

- Clean the sealing surfaces with metal surface prep. Follow the directions on the packaging.

Installation

1. NOTE: Lubricate the new O-ring seal with clean engine coolant prior to installation into the cylinder block.

Install a new O-ring on the coolant pump.

2. NOTICE: Do not rotate the coolant pump housing once the coolant pump has been positioned in the cylinder block. Damage to the O-ring seal will occur.

Position the coolant pump and install the 4 bolts.

- Tighten to 25 Nm (18 lb-ft).

3. Position the coolant pump pulley onto the coolant pump and install the bolts finger-tight.

4. Rotate the tensioner clockwise and install the accessory drive belt onto the coolant pulley.





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

6. Install the fan and fan clutch. For additional information, refer to Cooling Fan - 4.6L, 5.4L and 6.8L Service and Repair.