Toyota 16100-09515 Engine Water Pump Assembly

To remove the water pump on a vehicle, start by disconnecting the cable from the negative battery terminal and draining the cooling system. Then, raise the vehicle and remove the engine cover, splash shields, and inner fender splash shield. Drain the engine coolant and remove the drive belt, tensioner, and alternator. Next, remove the wiring harness from the clamp on the water pump and harness bracket. Finally, remove the water pump mounting fasteners and detach the water pump, thoroughly cleaning all sealing surfaces and removing all traces of the old gasket. To install the new water pump, use a new gasket and tighten the fasteners to the proper torque specifications. Refill the cooling system, run the engine, and check for leaks and proper operation.

Disconnect the cable from the negative battery terminal and drain the cooling system.

If the water pump shaft bearings fail, there may be a howling sound at the front of the engine while it is running.

Non-toxic coolant is available at focal auto parts stores. Although the coolant is non-toxic when fresh, proper disposal of used coolant is still required.