prob. leaked the freon...try to get it recharged....or check to see if the belt is broken to the compressor...a visit to an A/C mechanic might be in order....There are a couple of Firebird guys up there , maybe they can help you....try Chris Blandino ( cabland@verizon.net ) I think he just moved to the Coppell area, he may have good local recommendations.... you might also try Jim Roark , he`s in the Frisco area, just sold his bird but has a GTO still ( roark17@comcast.net ), if you call on them , tell them Bjorn sent ya!
Henry ,basically yes,,, if its the older R12 freon used , and if it leaked out,, its now pretty expensive , they are trying to 'wean' people off that by taxing it...You might call around to A/C shops and or regular mechanics shops....I dont remember how it is now...w/ permits etc....