I JUST GOT MY TRUCK BACK FROM THE SHOP, THEY HAVE SERVICED THE A/C GOOD NEWS NO LEAKS BAD NEWS IS THE LOW PRESSURE READS HIGH AND THE HIGH PRESSURE IS LOW, MECHANIC THINKS THERE IS A BLOCKAGE SOMEWHERE. ALL HOSES, COMPRESSOR, DRIER, EXPANSION VALE AND CONDENSER ARE NEW AND I BLEW OUT THE EVAPORATOR COIL WITH AIR. THE ONLY THING I CAN THINK OFF IS THE LINE WITH THE MUFFLER ON IT WAS REBUILT BY JEEP AIR SO MAYBE THE MUFFLER IS CLOGGED. ANYONE WITH OTHER IDEAS?