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Front Evaporator Core Replacement

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 Honda Odyssey, 2016 Honda Odyssey, 2015 Honda Odyssey, 2014 Honda Odyssey, and 2013 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
  1. Recover the refrigerant with a recovery/recycling/charging station (see REFRIGERANT RECOVERY  ).
  2. Remove the bolts from the A/C clamp (A).
    Fig 1: A/C Clamp With Mounting Bolts Torque Specifications
    G06968225Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Remove the bolt, then disconnect the A/C lines (A) from the front evaporator core, and remove the O-rings (B). Separate the guide (C) from the front expansion valve.
    Fig 2: Disconnecting A/C Lines From Front Evaporator Core With Torque Specifications
    G06968226Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Remove the blower unit (see BLOWER UNIT REMOVAL/INSTALLATION  ).
  5. Disconnect the connector (A) from the front power transistor, and detach the harness clips (B).
    Fig 3: Identifying Front Power Transistor Connector And Harness Clips
    G06968227Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Remove the self-tapping screws, the expansion valve cover (A), and the seal (B).
    Fig 4: Identifying Expansion Valve Cover And Seal
    G06968228Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Remove the bolts, then remove the inlet/outlet lines (A) and the O-rings(B).
    Fig 5: Inlet/Outlet Lines, O-Rings And Guide With Mounting Bolts Torque Specification
    G06968229Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Remove the guide (C) and discard it.
  9. Carefully pull out the front evaporator core (A), then remove the plate (B).
    Fig 6: Identifying Front Evaporator Core And Plate
    G06968230Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Install the core in the reverse order of removal, and note these items:
    • If you're installing a new front evaporator core, add refrigerant oil (DENSO ND-OIL 8) (see A/C REFRIGERANT OIL REPLACEMENT  ).
    • Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.
    • Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
    • Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil contacts the paint, wash it off immediately.
    • Charge the system (see SYSTEM CHARGING  ).
    • Make sure that there is no air leakage.
    • Make sure that there is no air refrigerant leakage.
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