Where is the low side to charge air 1998 Buick century?

The low side service port for the air conditioning system in a 1998 Buick Century is located on the larger diameter aluminum line that runs from the evaporator to the compressor. Typically, it can be found near the engine, close to the front of the vehicle. To charge the system, you'll need to connect your refrigerant gauge to this port. Always ensure the engine is off before connecting and consult your vehicle's manual for specific details.