My air conditioner broke in my vehicle last summer I had thought it needed recharged it's an 07 Chrysler Town and country. Paid to have it recharged only to have it make a hissing sound until it slowly died 2 days later. With constant trips to Dupont and children's it's a bit much for the kids as there are no openable windows in the back. Can anyone recommend someone to fix this. That isn't horribly over priced. Thank you :)