Where is the low pressure side ac port located on 2004 Ford Freestar?

The low pressure side AC port on a 2004 Ford Freestar is located on the accumulator, which is situated near the front of the vehicle, typically on the passenger side. You can find it along the line connected to the evaporator, and it usually has a blue or black cap. Make sure to identify it correctly, as there is also a high-pressure port nearby.