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Home >> Acura >> 2006 >> RL >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling System >> Water Passage Replacement

Water Passage Replacement

  1. Make sure you have the anti-theft codes for the audio system and navigation system. Make sure the ignition switch is OFF.
  2. Disconnect the negative cable from the battery, then the positive cable. Remove the battery.
  3. Drain the engine coolant (see COOLANT CHECK  ).
  4. Remove the air cleaner (see AIR CLEANER REMOVAL/INSTALLATION ).
  5. Remove the two bolts securing the harness holder and the two bolts securing the vacuum line, then remove the harness clamp (see step 18 under CYLINDER HEAD REMOVAL ).
  6. Disconnect the upper radiator hose, lower radiator hose, heater hoses, and water bypass hoses from the water passage. Remove the water passage.
    Fig 1: EGR Valve, ECT Sensors, Water Passage, Connecting Pipe And Gaskets With Torque Specifications
    G05494222Courtesy 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, 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 ).
  10. Clean up any spilled engine coolant.
  11. Do the steering column position memorization procedure (see STEERING COLUMN POSITION MEMORIZATION ).
  12. Enter the anti-theft codes for the audio system and the navigation system.