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HondaPlatinum, A Technician
Category: Honda
Satisfied Customers: 25955
Experience:  13 year honda platinum level
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Change the A/C expansion valve on a 2001 honda civic EX

Resolved Question:

need to know how to change the A/C expansion valve on a 2001 honda civic EX
Submitted: 7 years ago.
Category: Honda
Expert:  HondaPlatinum replied 7 years ago.
Need to remove the evaporator from inside the car .Would you like A diagram?
Customer: replied 7 years ago.

yes please

Expert:  HondaPlatinum replied 7 years ago.

Remove the bolt, then disconnect the suction line (A) and the receiver line (B) from the evaporator core






Remove the bolt and the ECM/PCM bracket (A). Remove the self-tapping screws and the expansion valve cover









  • Carefully pull out the evaporator core without bending the pipes.

  • Install the core in the reverse order of removal, and note these items:

    • If you're installing a new evaporator core, add refrigerant oil (SANDEN SP-10).

    • 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

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    2001 CIVIC - Blower Unit Removal and Installation

    1. Remove the passenger's dashboard lower cover, the right kick panel, and the glove box.

    1. Remove the bolt, then cut the plastic cross brace in the glove box opening with diagonal cutters in the area shown. Remove and discard the plastic cross brace




  • Remove the relays (A), then remove the bolts and the glove box frame (B).

  • Remove the ECM/PCM.





    Disconnect the connectors (A) from the blower motor, the power transistor, and the recirculation control motor, then remove the wire harness clips (B).








  • Fold the carpet and pad back toward you. Remove the mounting bolts, the mounting nut, and the blower unit.

  • Install the unit in the reverse order of removal, and note these items:

    • Make sure that there is no air leakage.








    Hoped this helped.



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