My A/C has been retrofitted with R134a stuffs.

But it hasn't been working since about 6 months after the retrofit.

While trying to recharge it, I found a leak in the "bleeder screw"(?) in front of the compressor.

So, I tightened it up a little.

Now the low-pressure side does not want to take any more recharge (after only one can), and the pressure guage, when hooked up, says I have *way* to much pressure in the line. (this is *not* the high-pressure line, BTW)

Can anyone think off the bat what may cause this? When the refrigerant goes in (when I had the leak), the compressor would click on and the AC would get cold for about 5 seconds.

Help, I'm sweating my ass off, here.

I guess I'll be paying for this one.

Is there moisture in the lines from having the bleeder screw open? I would put it on the machine and suck it done put a vacuum on it and see if it holds vacuum so you know there aren't any leaks in the system. Charge it. Was it retrofitted right? No shortcuts takin on the retro?