Where is the low pressure ac port on a 2004 thunderbird?

On a 2004 Ford Thunderbird, the low-pressure AC port is located on the passenger side of the engine bay. It can be found near the firewall, typically on the larger diameter aluminum line that runs from the compressor to the evaporator. The port is usually capped with a blue or black plastic cap for identification. Always ensure the engine is off and the system is not pressurized before attempting to locate or connect to the AC ports.