Where is the orifice tube located for 1997 GMC savana 2500 cargo located?

The orifice tube on a 1997 GMC Savana 2500 cargo van is located in the high-pressure line of the air conditioning system. To access it, you'll typically need to trace the line from the evaporator to the condenser. It's usually found at the firewall near the passenger side, where the line enters the evaporator assembly. Ensure the system is discharged before attempting to replace the orifice tube.