I thought this would be an easy do it your self type of job but I guess not. Here is my problem. I had my A/C charged with Freeze 12 from a shop last year 3 months later the compressor went south. So this year I decided to go to R134 (easy to get and no certification needed) and replace the accumilator and compressor at the same time. I removed the compressor and accumilator and flushed the system to clean out all of the old oil. I bought a new accum. and a rebuilt "Factory Air" compressor from Autozone as well as a R134 Retro kit. I attached the accum. with no problem. Next came the compressor. Before installing the compressor I put 1oz of PAG oil into to it. The instructions also say that the compressor shaft must be rotated min. 10 times to clear lubricant from the cylinders. I did this more that ten. Yes I rotated the shaft and not just the pulley. Next I installed the compressor onto the truck and made sure all the hoses and everything where set back up. Next I replaced the High and Low side fittings that came with the Retro kit. Now according to all the instructions I was ready to charge. The Retro kit states: Start vehicle and turn A/C to max. Then put in two cans of R134 into low side suction with can upside down(per instructions). Once I started to put the first can in the compressor clutch activated and was making a bad sound. I thought it might be that the system doesn't have enough oil. So I took the 8 1/2 oz can of oil that comes with the Retro kit and put that in next. No change in compressor noise. I then put another can of R134 in and the clutch stayed engaged but the noise was still coming the compressor. I stopped the engine and looked over everything that I had done and looked to make sure that nothing was lose. I turned the compressor shaft again and turned the A/C system back on. No luck. Compressor still noisy. One thing that I did notice was that the compressor was getting pretty hot. I stopped right there. What did I do wrong?