Where is the orifice tube on an 03 gm envoy?

On a 2003 GMC Envoy, the orifice tube is located in the air conditioning system, specifically within the liquid line that runs between the condenser and the evaporator. To access it, you typically need to remove the front bumper and the grille for better visibility and access. The orifice tube itself is usually found near the firewall, making it somewhat challenging to reach without proper tools and technique. Always ensure to recover refrigerant before attempting any repairs.