That sounds like a huge leak. Get some R134 with dye in it so a shop can find the leak. I hope for your sake it's just a hose.

'98 SVT
KKM / TH fix / Mobil 1 / Synth tranny cocktail / JVC LX-30 HU / 10" JL sub / Alpine V12 amp / Panther 199 wheels / Kuhmo Ecsta 215/45/17 / Bosch +4 / Ford Motorsport wires