If its a single evaporator unit (front air only). then it is probably located in the condensor. If it is a dual unit (front and back), the front orfice tube will probably be after the "Y" in the compressor high pressure line, and prior to the accumulator. The rear unit does not use an orifice, but rather a Thermal expansion valve.
In the inlet line on the evaporator core. It is the smaller one.
Behind grille , passenger side where the line enters the A/C condensor .
YES they are.
It is built into the alternator.
42 gallons
if equiped its right next to your speedohmeter
NO it will not. The stud pattern is different.
yes they will, i had a tahoe and suburban and they intechange between silverado / sierra as well
Wright above the passengers feet under dash.
I have the same problem with my 93 Chevy suburban also, and I found that the rear has a separate heater core located behind the rear right wheel well. From what I understand you have to locate it, and test it, and then flush it if the hoses are clogged.
They were not used on that year model. The 93 transmission is computer controlled. Time to take it to a transmission shop.
My '93 Suburban held 42 gallons....in the tank. I never tried pumping it into the cargo area..