It could be your A/C compressor leaked out the refrigerant. There is also oil in the system for lubrication which might be what you're seeing under the dash and on the ground. If a seal(s) blew that will happen.
A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ models!