Scion 16100-39515 Engine Water Pump Assembly

If the water pump is worn out, it can cause overheating of the engine and this may result to severe loss of the engine. The water pumps are equipped with weep or vent hole and if there is a failure with the pump seal, the coolant will seep out of this hole. Some models may require the use of a flashlight to identify the hole since the hole is located in the space behind the pulley just below the water pump shaft. Generally, a slight gray discolouration around the weep hole is normal, in contrast to dark brown stains that point at a defect. In case the water pump shaft bearings are worn out, one will hear a howling sound at the front of the engine when the engine is on, and the bearing wear can be tested by rocking of the water pump pulley vertically. It must be borne in mind not to interchangeability between drivebelt slippage, which gives a squealing noise, and water pump failure; use of automotive drivebelt dressing on the belts can rule out the belt as a source of noise.

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

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

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

It does come with the gasket

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