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Water Passage Replacement

WARNING: This page is about a different car, the 2006 Acura MDX, 2005 Acura MDX, 2004 Acura MDX, and 2003 Acura MDX. 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 REPLACEMENT  ).
  4. Disconnect the breather pipe, then remove the intake air duct.
  5. Remove the upper radiator hose, lower radiator hose, heater hoses, and water bypass hoses from the water passage. Disconnect the engine coolant temperature (ECT) sensor connector and exhaust gas recirculation (EGR) valve connector.
  6. Remove the water passage.
    Fig 1: Removing Water Passage
    G03639549Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Install the water passage in the reverse order of removal.
  8. Install the battery. Clean the battery posts and cable terminals with sandpaper, then assemble them and apply grease to prevent corrosion.
  9. Refill the radiator with engine coolant, then bleed air from the cooling system (see step 8 in COOLANT REPLACEMENT ).
  10. Clean up any spilled engine coolant.
  11. Reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL UNIT ).
  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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