Where to add r134a to a 2002 Lincoln Continental?

To add R134a refrigerant to a 2002 Lincoln Continental, locate the low-pressure service port on the car's air conditioning system. This port is typically found on the larger diameter aluminum line, and it's often covered by a plastic cap that is marked with an "L" for low pressure. Use a refrigerant gauge and hose to connect to this port, and then follow the instructions on the refrigerant can for proper addition. Always ensure the system is off before adding refrigerant and wear safety goggles.