The compressor will kick on when the freon level is high enough.  hard to
tell how many but buy 4 and then return the rest.  Also, you nmay want to go
back to the a/c vendor and talk to him first. good luck.
Michael in San Antonio
91GL AT 'Gringo'
73 Beetle

On Sat, Apr 3, 2010 at 4:35 PM, <titantic01@aol.com> wrote:

>
>
>  Hello gang,
>
> Last year about the fist of April, I spent over $400.00 to get the A/C in
> my '87 vanagon going. a hose was replaced and some minor things were done.
>
> Now, a year later, I turned on the a/C and it was so low of freon that the
> safety switch would not even let the compressor run. I went and bought 2
> cans of 134 a and a cheap gauge dispensing set up to put it in with.
>
> My question is since the compressor won't energized will I need to some how
> jump the compressor clutch to make it run while filling the thing up or will
> it start on it's own once I have put in enough freon?
>
> The other thing I want to know is is 2 cans enough or does that system take
> a 3rd can?
>
> Thanks for your words of wisdom on this.
>
> Happy Easter everyone.
>
> Chris
>