Where is the orfice tube located on a 1995 GMC Jimmy?

the orofice tube on your vehicle is easy to get to. have a shop recover the refrigerant and then remove the receiver/dryer. the orofice tube is located in the lower pipe that connects to the receiver / dryer
 
Its the same as a expansion valve and does exactly the same thing ,but it invisibel to the eye, it is located near the accumulator on passenger side of vehicle near firewall under hood,and is where the high side liquid line hooks to the low side, the orifice tube, is inside the low side hose, when you remove the two at the connection, and it turns the high pressure liquid line to a cold gas this is th location where this happens ,with a normal system working with A/C on the high side line is temperature and pressure so what ever the temp is that the pressure in that line at that time so between 70 to 200 degrees depending when you checking it and the other will be 32 degrees Fahrenheit so part of the hose hot the other cold this is the location of the orifice tube , take care
 
its at your firewall. you have to take out your dash to get it out
 


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