Water Passage Replacement

Do the battery removal procedure (see BATTERY REMOVAL AND INSTALLATION ).
Drain the engine coolant (see COOLANT REPLACEMENT ).
Disconnect the upper radiator hose (A) and the lower radiator hose (B).

Fig 1: Identifying Upper Radiator Hose And Lower Radiator Hose
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect ECT sensor 1 connector (C) and the EGR valve connector (D).
Remove the EGR valve.

Fig 2: Identifying EGR Valve
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the ECT sensor.

Fig 3: Identifying ECT Sensor
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the harness holder mounting bolt (A), then remove the wire harness (B) from the harness holder.

Fig 4: Harness Holder And Mounting Bolt With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the water bypass hoses (A) and the heater hoses (B).

Fig 5: Identifying Water Bypass Hoses And Heater Hoses
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the EGR pipe.

Fig 6: EGR Pipe With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the water passage (A) and the connecting pipe (B).

Fig 7: Water Passage And Related Parts With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the water passage in the reverse order of removal.
Do the battery installation procedure (see BATTERY REMOVAL AND INSTALLATION ).
Refill the radiator with engine coolant, and bleed the air from the cooling system (see COOLANT REPLACEMENT ).
Clean up any spilled engine coolant.