Where is the low side port on a 2009 Pontiac g5?

The low side port on a 2009 Pontiac G5 is located on the air conditioning system's refrigerant line, typically near the firewall on the passenger side of the engine compartment. It is usually a smaller fitting, often covered with a plastic cap, and is connected to the accumulator or the evaporator. To access it, you may need to remove some engine cover components or other obstructions. Always ensure the engine is off and the A/C system is not under pressure before attempting to service it.