So I've never tried using my AC on my Burb since I got it on 4-30-2011. It had many other issues I needed to address before I worried about the AC not working. The guy I got it from (best friend) had tried to convert it to 134a with the typical small kits you can buy at any parts store. He said it worked for a short time and then he stopped using it due to colder weather. But he said it was never "really" cold like he would've liked. So now that I've replaced the engine along with fixing alot of other mechanical issues, I've started working on the small stuff. Mostly cosmetic stuff such as paint and interior things. But since it's almost 100 today I decided to avoid sanding and bondoing and see if I could get the AC working. I bought a conversion kit a long time ago to do just that, so I pulled it out and checked the pressure in the system. The pressure showed as being low, so I followed the intructions and started filling it with the new oil/refrigerant to the reccomended pressure levels while the AC and engine were running. However, I noticed the AC unit kept coming on and shutting off in very short intervals. The compressor would turn on for 2 or 3 seconds and then shut off for 2 or 3 seconds continually. All the while the air in the cab of the Burb stayed luke warm. It never blew hot air, but it never blew cold air either. So I decided to drive it around for awhile to see if maybe it just needed to get the fluids flowing and burp itself from possible air bubbles. Didn't work of course, otherwise I wouldn't be here. :-/ So here's my question.......The compressor turning off and on continually seems to be the obvious problem in this equation, but I'm stumped on why it's doing that. I don't have an ohm meter to see if it's getting a steady signal, and to be honest electrical is my weak point when it comes to cars. So I probably wouldn't know what would be a good reading even if I had one to check it with. Much less would I know where to use it or what connections to touch with it for checking the signal. So aside from buying a new compressor and installing it to see if that's the problem, and not taking it to a shop to spend a bunch of cash having them tell me something that "may or may not be" the issue.......Can anyone tell me if this is something typical for AC system issues? And if so what direction should I go to rectify it. If not, does anyone have any advice for obtaining an ohm meter and correctly using it to try and track down the issue?