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Home >> Honda >> 2007 >> Fit Base, Standard >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating/Air Conditioning >> Expansion Valve Replacement

Expansion Valve Replacement

  1. Recover the refrigerant with a recovery/recycling/ charging station (see REFRIGERANT RECOVERY ).
  2. Disconnect the receiver line and the suction line (see EVAPORATOR CORE REPLACEMENT ).
  3. Remove the pipe cover (see EVAPORATOR CORE REPLACEMENT ), then remove the bolts, the inlet and outlet pipes (A), the expansion valve (B), and the O-rings (C).
    Fig 1: Inlet And Outlet Pipes, Expansion Valve And O-Rings With Torque Specification
    G05456505Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Install the expansion valve in the reverse order of removal, and note these items:
    • Make sure the inside wall of the joints are clean and free from dirt and debris.
    • 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 right 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.
    • Replace the joint caps and the stops with new ones at joints.
    • After installing the stops, insert the receiver line and the suction line slowly in to the joints until they lock.
    • Securely install the joint caps so they will not come off.
    • Charge the system (see SYSTEM CHARGING ).
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