Michiel, after reading your post, I was inspired to go out to my car and take a picture of the AC Accumulator area. I did so, and labeled all of the components. I uploaded it to the "FILES" section of YahooGroups, under the name "AC_Accumulator.jpg". You may find the answers to your questions there. To answer them here, the high pressure switch is located on the metal line leading into the evaporator, in front of the accumulator. The safety valve is opposite of it (they rest horizontally). The low pressure switch is located on the top side of the accumulator. If my knowledge of AC systems is accurate, the Low Pressure switch is responsible for the normal cycling of the compressor, and the high pressure switch is only a safety. And for those who really dont know, the accumulator is located in the front passenger-side wheel well. However there are two factors you must consider here. The ealier cars had a different setup at their accumulator. According to PJ Grady's online parts manual, the switch was at VIN 3467, which is after your VIN. My diagram of the later design off of my VIN 6960 would not be accurate, and I dont know the setup used on the ealier cars. Another factor to consider, did the AC shop that did your conversion use DeLorean parts, or generic parts? If they used generic parts, the setup may also be different than I have pictured. As to your other question about removing the lines, it can be done without lifting the body, but not easily. You will need to cut off the ends to the lines to pull them back, and it may also require bending down the ledge off of the bottom of the frame. Good luck fixing your AC. Jim Reeve MNDMC - Minnesota DeLorean Club DMC-6960 --- In dmcnews@xxxxxxxxxxxxxxx, Michiel Böhmer <michiel.bohmer@xxxx> wrote: > Dear list-members, > But the strange thing is, and this is my question to you all; I could not find a high pressure switch and safety valve! WHERE ARE THEY? And if compressors should cycle on and off all the time, which component is controling this? > > Regards, > > Michiel Bohmer > (VIN #2998)