2002 Dodge Van

I HAVE REPEATLY (APPROX. 15-18) COMPLAINED TO DAIMLERCHRYSLER AND TO THE DEALERSHIP WHERE MY VAN WAS BOUGHT, THAT MY AIR CONDITIONING DOES NOT WORK PROPERLY. IT IS INTERMITTED. THERE HAVE BEEN VERY LOUD EXPLOSION-LIKE SOUNDS WHEN THE AIR CONDITIONING IS ENGAGED. AFTER RUNNING THE VEHICAL AN 1/2 HOUR OR SO, THE INSIDE GRILL TEMP IS SOMETIMES 90. WE HAVE A VERY LARGE THERMOMETER THAT WE CAN PUT INTO THE AIR VENT TO GET AN ACCURATE TEMP. THE DEALERSHIP HAS REPLACED THE COMPRESSOR 6 TIMES. THEY HAVE PULLED OUT THE GUTS. THEY REPLACED THE EVAPORATOR COILS,AND STILL THE AIR CONDITIONER IS INTERMITTED. DAIMLER EXTENTED THE WARRENTY ON THE COMPRESSOR ONLY, AND THE DEALERSHIP EXTENDED THE POWER TRAIN WARRENTY. STILL NO ONE HAS OR WILL FIX THE AC. WE DID NOT MEET THE CRIERIA OF THE MD. LEMON LAW, MY THREE TIMES FOR THE SAME PROBLEM WAS 3 MONTHS LATE. I ASKED THE DEALERSHIP TO REPLACE THE VEHICAL 2 YEARS AGO AND THEY REFUSED. I HAVE ALL MY DOCUMENTS AND WOULD SURLEY APPRECIATE ANY HELP.