Overheated refrigerant will always vent; that's what the vent is for. As one of the symptoms is refrigerant keeps venting, it makes condenser cooling a primary consideration.
I asked about the dedicated electric fan because it's a good solution. Something like this. Cheap, effective, and easy to add if your wiring harness has the port. Adding a dedicated fan and a full refrigerant recharge should make things right again.
Jerry,
I'm thinking you're on the right track.
For lunch today, I went outside and played with some things (it was 96 degrees, by the way). With an know almost empty system, it's rare the head pressure gets high enough to blow off again. But today being so hot, it release more 134 when I revved it up in park, which was a surprise. I turned off the A/C and went for a drive. I got up to about 40MPH and put the trans in neutral, then turned the A/C on. The vent temp dropped drastically, so that tells me that air flow through the condenser is key and not compressor RPM.
I doubt I'll install an aftermarket auxiliary condenser fan, as it *shouldn't* have to have one.
Seems the good ol fashion "stick your hand in the fan" isn't as reliable as it used to be, so I may just suck it up and put a fan clutch on it.
Bob
