Are the symptoms the same as before? If so, a guy named
Steven L. posted here recently that his dealer narrowed his
Civic's A/C problem to the heater control unit (the box
mounted in the dashboard of the car controlling fan speed,
on/off for the a/c, etc.). This was after someone else had
replaced his compressor. If memory serves, it seems the
toggle button for the a/c fails intermittently. Googling
suggests this is a fairly common failure mode, so make sure
the heater control unit is checked.

Two cents. I do not do much work with a/c systems but now
having a 93 Civic with a/c, I am trying to pick up more info
on what commonly fails on Honda a/c systems.

"The Green Potato" <a@a.a> wrote
> Hello all,
>
> Here's my story:
>
> We took our 1994 del Sol (SOHC V-tec) to the dealership to
> get the air conditioner fixed. They stated the expansion
> valve and the evaporator was bad. We agreed to the $710
> repair estimate. We retrieved the car at noon and by
> 12:14pm the air went out again. This is the second time
> this has happened.
>
> The "service assistant" also stated the condenser fan
> (which was replaced in 2003 by a shade-tree mechanic) was
> 75% too small and would also need replacing if we wanted
> the a/c to blow below 40°F. We are deciding whether or not
> to take it back....as we feel completely betrayed by the
> dealership.
>
> My question is WHY doesn't the a/c work??? In addition,
> after they "repaired" it, the engine idles well below
> 1Krpm. OR it randomly revs up to 3Krpm.
>
> I just don't get it guys...am I cursed???
>
> Any advice is sincerely appreciated...