Ok, my 05 DGC w/ 3.8 doesnt have a/c and the wife is leaving on a trip from MI to TX next week and she wants a/c understandably. So I checked to see if it had and R134 and found out there was a puntcure in the tubing on the high pressure side. I replaced the tubing and tested it for leaks and then filled the system with refridgerent its holding the 134 at a proper amount but I am not getting any cold air when the a/c is on. I have checked the compressor and it seems to be operating fine, I also have tried reseting any computer controlling the a/c by disconnecting the battery for a half hour, still isnt working. But i am hearing a hissing noise, almost like air filling the tube coming from under the dash around the condenser. It makes the noise any time the a/c is on, so could this be a problem? Can anyone think of what it could be or know what is wrong? Any help would be greatly appriciated. Thanks in advance.

Ok, was reading on here about the checking the rear a/c. I just checked it and the rear is blowing very cold but front is not. Any ideas?

Did you put the proper amount of refrigerant (134A). It says on the sticker. (Ithink under the hood).Its around 3+ lbs. Check it out.