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Home › Honda › 2003 › Pilot EX › Repair and Diagnosis › Engine Mechanical › Cooling System (Mechanical) › Cooling System › Water Pump Replacement

Water Pump Replacement

  1. Drain the engine coolant (see Coolant Replacement  ).
  2. Remove the timing belt (see TIMING BELT REMOVAL ).
  3. Remove the timing belt adjuster (see TIMING BELT ADJUSTER REPLACEMENT ).
  4. Remove the water pump (A) by removing five bolts.
    Fig 1: Removing The Water Pump
    G01463896Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Inspect and clean the O-ring groove and mating surface with the cylinder block.
  6. Install the water pump with a new O-ring (B) in the reverse order of removal.
  7. Clean up any spilled engine coolant.
  8. Install the timing belt adjuster (see TIMING BELT ADJUSTER REPLACEMENT ).
  9. Install the timing belt (see TIMING BELT INSTALLATION ).
  10. Refill the radiator with engine coolant, and bleed air from the cooling system (see step 8 on Coolant Replacement  ).
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