Where is the orifice tube located at on your 1993 caprice station wagon?

On a 1993 Caprice station wagon, the orifice tube is located in the liquid line of the air conditioning system. To find it, trace the aluminum line that runs from the condenser to the evaporator; the orifice tube is typically situated near the evaporator inlet. You may need to remove the line to access and replace the orifice tube. Be sure to recover any refrigerant before servicing the A/C system.