I've worked on a lot of AC systems, and it's a science and art of its own within car repair. Once you understand how it works, it can be much less intimidating and easier to find a problem you might be having. While you might have a car other than an Acura RSX, the information is still valid and will help you out. This is meant to compile information that I had trouble finding when I was new to the RSX's AC system. Note: If you purchase your supplies from my Amazon links, it will support this website at no extra cost to you. : ) Thank you. Prologue: AC Can Be Dangerous AC refrigerant, also known as R-134A in modern cars (and Freon if you call tissues "Kleenex") is a gas kept at high pressures . It's also really bad for the environment, as sunlight converts it to chlorine and bromine gas, which is poisonous to you and depletes the ozone that protects you from radiation. You can also be fined up to $50,000 for releasing it into the atmostphere . If you're ...