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A/C Confusion

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Sorry for the non-scirocco content, but I have gotten little help =
elsewhere I have asked about this thing that is going on with the car. =
The car is a 1992 Jetta GL. Problem I am having is intermittent A/C =
activation. My first guess was the system had no refrigerant (R-12) in =
it, which I sorta knew it didn't because the last time it worked =
consistently the air wasn't that cold. Eventually the compressor stopped =
working all together and I figured this was due to low pressure in the =
system. I was on a road trip with the car and I turned the vent on and =
when the slider went by the a/c selections I felt a jolt as if the =
compressor came on. To make a long story short when I got to where I was =
going I checked and it was on. Kept coming on consistently and I took =
the opportunity to have the system check/evaced of R-12 and then bought =
a R134a conversion kit. Did the conversion, system worked fine for about =
a day and a half. Air was real cold etc. Working awesome. Compressor =
cuts out, the end of that luxury once again. So I was fiddling with the =
system yesterday. There is no power coming from the car to the =
compressor at all. I check before the pressure switch and nothing is =
there. Checked the fuse, all is well with that. Here is the kicker and =
this confuses the hell out of me. If I take my test light, put one end =
on the battery + and just touch the pressure switch in the A/C line for =
a second the compressor immediately kicks in and will stay running for a =
random amount of time after this before cycling off and then not =
restarting, unless I give it a jolt again. Sometimes I can drive for =
like 20 mins like this and it stays running sometimes like 2 or 3. It =
varies. I even touched the wire on the side before the pressure switch =
and the compressor comes to life, so I don't think its the pressure =
switch. I am totally baffled and since the listers seem to be very =
knowledgeable I thought I might ask for some help here. Any input anyone =
has is greatly appreciated as I would like to  get this thing going =
again if I can. Especially now that I have spent $40 to get this thing =
converted over to 134a and knowing that it can work if it somehow gets =
electricity.

Thanks,
Chris

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<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Sorry for the non-scirocco content, but =
I have=20
gotten little help elsewhere I have asked about this thing that is going =
on with=20
the car. The car is a 1992 Jetta GL. Problem&nbsp;I am having is =
intermittent=20
A/C activation. My first guess was the system had no refrigerant (R-12) =
in it,=20
which I sorta knew it didn't because the last time it worked =
consistently the=20
air wasn't that cold. Eventually the compressor stopped working all =
together and=20
I figured this was due to low pressure in the system. I was on a road =
trip with=20
the car and I turned the vent on and when the slider went by the a/c =
selections=20
I felt a jolt as if the compressor came on. To make a long story short =
when I=20
got to where I was going I checked and it was on. Kept coming on =
consistently=20
and I took the opportunity to have the system check/evaced of R-12 and =
then=20
bought a R134a conversion kit. Did the conversion, system worked fine =
for about=20
a day and a half. Air was real cold etc. Working awesome. Compressor =
cuts out,=20
the end of that luxury once again. So I was fiddling with the system =
yesterday.=20
There is no power coming from the car to the compressor at all. I check =
before=20
the pressure switch and nothing is there. Checked the fuse, all is well =
with=20
that. Here is the kicker and this confuses the hell out of me. If I take =
my test=20
light, put&nbsp;one end&nbsp;on the battery + and just touch the =
pressure switch=20
in the A/C line for a second the compressor immediately kicks in and =
will stay=20
running for a random amount of time after this before cycling off and =
then not=20
restarting, unless I give it a jolt again. Sometimes I can drive for =
like 20=20
mins like this and it stays running sometimes like 2 or 3. It varies. I =
even=20
touched the wire on the side before the pressure switch and the =
compressor comes=20
to life, so I don't think its the pressure switch. I am totally baffled =
and=20
since the listers seem to be very knowledgeable I thought I might ask =
for some=20
help here. Any input anyone has is greatly appreciated as I would like =
to&nbsp;=20
get this thing going again if I can. Especially now that I have spent =
$40 to get=20
this thing converted over to 134a and knowing that it can work if it =
somehow=20
gets electricity.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Chris</FONT></DIV></BODY></HTML>

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