I have a 2005 Toyota Corolla that shot freon out of the bottom of the compressor as I was adding freon to the system. I thought I had busted the compressor but this model has a pressure relief valve at the bottom of it. Once the pressure is too high, freon comes out of the valve to protect the compressor. Image below
I have a 2007 Ford Focus. I have spent $1000 having 2 mechanics replace the pump and it still leaks out the top. Every time I would cut the car off, all the fluid would leak out of the top overnight. The problem I found is that I was using regular power steering fluid instead of the Mercon V Automatic Transmission Fluid that the manual recommends. I guess it has a lower boiling point than Mercon V. I just assumed regular power steering fluid is what I needed. You would think 1 of the 2 mechanics would have said something as many times as I took the car back. The pump also made a loud whining sound with regular fluid. With Mercon V, quiet as a baby. I'm writing this to say you the trouble because I couldn't this exact issue online. The 2nd issue is that the oem cap was lose on the reservoir as well. I had to buy a replacement cap from the local parts store that fits perfect!
