On a 1995 Chevy Tahoe, the low-pressure (suction) side of the AC system is typically located at the
compressor. Specifically, you'll find the low-pressure port on the
compressor itself. It's usually a smaller diameter fitting compared to the high-pressure port. It might be identifiable by a smaller cap or a different colored cap than the high pressure side.
Important Note: Never attempt to work on your AC system without the proper knowledge, tools, and safety equipment. Refrigerant is under high pressure and can cause serious injury. If you need service, take your Tahoe to a qualified mechanic.
