Water Pump: Service and Repair

Water Pump Replacement (3.5L (L66))

Removal Procedure




1. Drain the coolant.
2. Remove the timing belt cover.





Important:
* When a vehicle is diagnosed to have coolant leaking inside the timing belt cover, a visual inspection of the timing belt should be completed. If there is any indication that coolant has leaked onto the timing belt (i.e. wetness, staining, etc.), the timing belt should be replaced.

* When replacing the water pump, coolant will be spilled onto the timing belt. Replacement of the timing belt due to coolant spillage on the belt is not necessary.

Remove the water pump assembly bolts.
3. Remove the water pump and O-ring.

Installation Procedure




1. Clean and block at the water pump mating surface.
2. Install a new water pump O-seal to the water pump.
3. Install the water pump assembly.

Notice: Refer to Fastener Notice.

4. Install the water pump bolts.

Tighten the water pump bolts to 12 N.m (18 lb ft).

5. Install the timing belt cover.
6. Fill the coolant system.