Water Pump: Inspection

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT WATER PUMP ASSEMBLY
1. Visually check the drain hole for coolant leakage.
  If leakage is found, replace the water pump assembly.
2. Turn the pulley, and then check that the water pump bearing moves smoothly without making a "click" noise.
  If it does not move smoothly, replace the water pump assembly.
  
  Fig 1: Inspecting Water Pump For Leaks And Bearing Moves Smoothly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002