orifice tube location?

Where is the orifice tube/expansion valve located on a '98 Expedition 5.4L 2wd with dual a/c?

Thanks in advance for the help..!!

Orfice tube for the front unit is located to the right side front of the engine compartment next to the radiator, it is in-line, you will will see 2 metal lines that ajoin with fittings the lower and smaller diameter is the orfice line , in the rear unit, the expansion valve is located in the left rear
quarter panel