I have a 93 z28 and the ac hasn’t worked since I bought the car and it didn’t bother me but been wanting to go ahead and fix it because it’s been getting pretty hot and these things are like ovens. It looks like it was cut idrk. Does anyone know where the line goes and also the part number for it and what I would have to have done as far as would I need to get the system vacuumed and recharged?

 

 

A/C component diagram, including part # for the missing line, courtesy of Shoebox:

http://shbox.com/1/ac_system.jpg

 

that should go to the condenser in front of the radiator. and since it has been exposed to the air you will need to replace the filter/dryer unit, that is the thing with the cut line attached to.