Back in December I was charged $200 for a recharge in my F350. The issues started when the AC wouldn't kick on, I bought a home kit, that didn't work, so I took it to a local place that attempted to diagnose it for about 3.5 hours but couldn't find the issue. They said the compressor was staying engaged too long, which it was. The interesting thing is the next day and every since, its worked perfectly (and it gets a lot of use here in Jacksonville FL). They probably added too much Freon and it leaked out overnight.