Where is the low pressure side to recharge AC in a 96 Chevy Lumina?

On a 1996 Chevy Lumina, the low-pressure port for AC recharge is usually located on the dryer/accumulator. This is a cylindrical component near the front of the vehicle, often on the passenger side, in the engine compartment. It will have a smaller fitting than the high-pressure port.

Important Note: The low-pressure port is typically identified by a smaller diameter fitting and sometimes a cap colored blue. However, always double-check your vehicle's AC system diagram or your owner's manual to be absolutely certain before attempting to recharge your AC. Incorrectly connecting to the high-pressure port can be dangerous. If you are unsure, it's best to have a professional perform the recharge.