I recharged my AC myself with one of those cans of EZ Chill R134a. Here's what happened: after about 5 minutes of releasing the refrigerant into the low side fill input, I got it to the roughly
50-55 psi pressure recommended for this, a 2005 Lincoln Town Car.Now I have a new problem: the clutch clicks every 5 seconds or so, and, with the gauge attached, I see the pressure go up to 55 then down to about 15 with each click, then back up again and so on over and over again. And sure enough, the AC does not blow cold inside. I did everything "the can told me" and I know I released the refrigerant into the right place. Why is the pressure varying so much with the clicks and how come no col air? The can still has refrigerant in it. Upon initial measurement with the gauge, the pressure was barely 10-15 psi. Thanks in advance to anyone who can help.