Where is the orifice tube on a 2002 Buick regal?

The orifice tube on a 2002 Buick Regal is located in the air conditioning system, specifically in the liquid line between the condenser and the evaporator. To access it, you typically need to locate the liquid line, which runs from the condenser to the firewall. The orifice tube is usually housed within a fitting or a connector on this line. Make sure to recover any refrigerant properly before attempting to replace it.