Quote:
Originally Posted by slk230red
Since I still have R12 on hand, I haven't converted a car to R134A yet. But, I thought that the high pressure switch on the drier/receiver had to be changed to one with a higher cut-off pressure, since the R134a operates at a higher pressure.
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Actually, it's the opposite problem. Retrofits are required to have a high-pressure cut-out switch, and your R12 system probably only has a low-pressure cut-out.