Maybe someone else has already had this problem? I get just about a year on an AC charge. The ac gets used year round cooling in summer and defogging in winter. The garage, well the auto dept. at the local technical high school, that recharges it said they can find no leak under the hood and anything inside the car is beyond what they would tackle. Hopefully one or more TJ owners have experienced the same problem and can save me some time. The recharge only runs about $30 but if the fix isn't too involved I would prefer it be corrected. When the compressor was replaced about two years ago the lines under the hood, in order to qualify for the lifetime warranty, were also replaced.