Where is the low pressure ac port on a 2002 Chrysler 300m?

The low-pressure AC port on a 2002 Chrysler 300M is typically located on the dryer/accumulator. The dryer/accumulator is part of the AC system and is usually found near the front of the vehicle, often on the passenger side of the engine compartment. It's usually a smaller fitting than the high-pressure port.

However, it's crucial to visually identify the ports. The ports are usually colored coded (low pressure is usually blue and high pressure is usually red) and sized differently. Consult a repair manual specific to your 2002 Chrysler 300M to be absolutely certain before working on your AC system. Improper handling of refrigerant can be dangerous.