i have a 2000 dodge durango. I replaced the expansion valves and compressor pulled vacum and recharged the system. At 1500 rpm the low side pulls down to about 30 and the high side is between 200 and 250. The air in side is cool but not cold bypass the heater core to check the blend door didnt make a diffrence. The compressor is not cycling what would cause this tryed a diffrent low and high pressure switch and a diffrent cycle switch. Ac blow cold driving just now sitting still . Electric fan is working and put new clutch on cooling fan .

 

Welcome to the site. I will move this thread to the first generation Durango section,
FF