GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Impala 🢒 Engine 🢒 Engine Mechanical - 3.9L 🢒 Water Pump Cleaning and Inspection

    Object Number: 1557835 Size: SH
  1. Remove all gasket material from the sealing surface.
  2. Inspect the water pump impeller for damage.
  3. Inspect the water pump shaft for looseness.
  4. Replace the water pump if necessary.