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Water Passage Replacement

WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
  1. Make sure you have the anti-theft codes for the radio and navigation system, then write down the customer's audio presets. Make sure the ignition switch is OFF.
  2. Disconnect the negative cable from the battery first, then disconnect the positive cable. Remove the battery.
  3. Drain the engine coolant (see COOLANT CHECK  ).
  4. Disconnect the intake air temperature sensor, engine coolant temperature (ECT) sensor 1, and ECT sensor 2 connectors, and remove the breather pipe, then remove the intake air duct (see step 2 in REMOVAL ).
  5. Remove the engine harness holder (see step 14 in CYLINDER HEAD COVER REMOVAL ).
  6. Remove the upper radiator hose, lower radiator hose, heater hoses, and water bypass hoses from the water passage. Disconnect the exhaust gas recirculation (EGR) valve connector.
  7. Remove the water passage.
    Fig 1: Removing Water Passage
    G03704126Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Install the water passage in the reverse order of removal.
  9. Install the battery. Clean the battery posts and cable terminals with sandpaper, then assemble them and apply grease to prevent corrosion. Connect the positive cable to the battery first, and then connect the negative cable.
  10. Refill the radiator with engine coolant, then bleed air from the cooling system (see step 8 in COOLANT REPLACEMENT  ).
  11. Clean up any spilled engine coolant.
  12. Enter the anti-theft codes for the radio and the navigation system, then enter the customer's audio presets.
  13. Set the clock.
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