Easy to solve- sell the Ford "Exploder" this winter and buy something- anything- better
Refrigerant leak, A/C compressor going out, bad clutch, etc. If you do not have guages, best you bring it to a shop who have guages and a vacuum pump. Any part you change, except electrical, will require evacuation and recharge. And every component in the a/c system is expensive, including the refrigerant. Cannot hunt and peck with replacement parts here.
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