Where do you connect refrigerant to charge 99 Lincoln contenintal?

To charge the refrigerant in a 1999 Lincoln Continental, locate the low-pressure service port on the AC system. This port is typically found on the larger diameter aluminum line, which runs between the evaporator and the compressor. Use the appropriate refrigerant charging hose and connect it to this port to add refrigerant as needed. Always ensure the system is off before connecting, and follow safety guidelines.