OEM 2000 Toyota Sienna Water Pump

2000 Toyota Sienna Water Pump Parts Q&A

• Q: How to service and repair the water pump on 2000 Toyota Sienna?

  A: A water pump service or repair requires the draining of engine coolant during the first step. The service and repair of the water pump begins with removing the outer front cowl top panel assembly and following it with the timing belt along with camshaft timing pulleys and No.2 idler pulley and finally the No.3 timing belt cover. The installation requires removing the water pump by unbolting its four fixtures together with two nuts and the gasket and pump separately. The drain hole of the water pump should be examined visually for coolant leaks during inspection. Replace the water pump if any leakage is present. Inspection requires a pulley rotation check for the smooth operation of the water pump bearing along with necessary water pump replacement. Examine all components belonging to the timing belt system. Align a new gasket along with the water pump before mounting it into place via the 4 bolts and 2 nuts while applying torque to 6 Nm (60 kgf-cm, 53 inch lbs.) and avoiding gasket contact with oil. After installing the No.3 timing belt cover proceed to install the No.2 idler pulley along with the camshaft timing pulleys and timing belt before you complete the installation with the outer front cowl top panel assembly. Perform the first start-up by adding engine coolant then inspect for any leakage while verifying the engine coolant reading.