Just wondering if anyone has encountered this before. My wife's 2001 SH (133K miles) AC was blowing fine but no cold air. My brother and I checked the pressures and charged the system. Now the high end pressure is very high and the low end pressure is within a normal range. After charging the system, her AC compressor cycles on and off in a very short period of time. Of course the cycling causes the RPMs to fluctuate. She is upset about that. Turn the air off and the RPMs stay consistent. My brother has worked on AC systems in various cars at different points in time over the years. He is ten years older than me. He seems to think that the problem is a high end restriction and / or the expansion valve. Has anyone had this problem or know the most common problem(s) in the Prelude?