2006 Lincoln Navigator. In May of '14 the A/C developed a leak was only blowing hot air so my husband went to our local Wal Mart bought something like Freon put it in and it immediately leaked out, but my husband thought he didn't add enough Freon so he bought another can and it leaked out so now we just leaked 2 cans of Freon out in to the air for around $45. Bought a can of stop leak $20 sprayed that in and then bought another can of Freon and it seemed to do the trick, but it wasn't very cold, so he bought another can of Freon and that did the trick, it isn't icy cold but after about 10 min it feels like "cool ish" air. We spent around $110 to get coolish air. He seems satisfied and that's all that matters.