Bora Akyol wrote:
>
> OK,
>
> (89 928 S4)
>
> In my previous email, I mentioned that I checked the sight glass and it did not show any bubbles.
>
> Well, I went downstairs, unscrewed the cap that covers a valve that I presume is the refill point. I pressed down on the valve and the pressure I felt was meek at best (kind of like an already flat tire being deflated).
>
> If the system is completely depleted of freon, will there be bubbles in the sight  glass or nothing at all.
>
> What is the proper way to check this thing anyway.
>
> Thanks
>
> Bora

Bora, when you press on that valve about 5 to 10 seconds, you have emptied the system completely. This is not the way to check system pressure. R-12 refrigerant is VERY expensive now; this is on purpose to encourage everyone to change over to R-134 which costs about 1/4.
--jer
83sat but no A/C (yet - it's on th list midway down)