If it's converted, you should see some attachments put
on the service ports (the nozzles). The low side
should be attached to a fatter pipe than the high side
and should also have the larger of the two
attachments. Also, if you have red and blue caps, go
for the blue one.

If your compressor is not engaging, then your system
is almost empty. If it kicks on and off frequently,
then you're low on refrigerant. Either way, I
recommend getting the conversion kit because it will
have the quick connect hose that you will need to fill
the system. The cans also have the lubricant that your
system might need.

When the time comes to fill it, you have to have the
engine running and the A/C on for the duration of the
process. So, it's generally a good idea to fill it
until cold air blows out (usually 2-2� cans).

It's much easier than it looks. Trust me. :)

Sam

--- Debra Clark <clark10006@COX.NET> wrote:
> My family recently got back from two weeks in Hawaii
> where, among lots of other things, we saw lots of
> Vanagons.  But now that I'm back, I want to take
> care of some problems with my 90 Multivan.  The A/C
> is not blowing cold.  It was converted to 134-a in
> Feb. 2002 so I think it might need more refrigerant.
>  I have the refrigerant and a gauge but where do I
> hook up?  It seems that the readily available
> connector at the top of the engine compartment is on
> the "high" side.  Am I wrong?  Where is the low side
> connector?
>
> Also, if it's not refrigerant, what are the likely
> problem areas?  The compressor doesn't seem to be
> coming on.  What and where should I check?  Thanks.
> I tried to search the archives with nil results.
>
> Debra Clark
> Santee, CA

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