Honda Odyssey Service Manual: Evaporator Front Expansion Valve Replacement

Recover the refrigerant with a recovery/recycling/charging station.

Remove the bolt from the A/C line clamp (A).

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.

Remove the blower unit.

Disconnect the connector (A) from the front power transistor, and detach the harness clips (B).

Remove the self-tapping screws, the expansion valve cover (A), and the seal (B).

Remove the bolts, then remove the inlet/outlet lines (A) and the O-rings (B).

Remove the guide (C) and discard it.

Remove the insulator (A) and the bolts, then remove the front expansion valve (B) and the O-rings (C).

Install the front expansion valve in the reverse order of removal, and note these items:

• 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.

• Make sure that there is no air leakage.

• Make sure that there is no refrigerant leakage.