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Discussion Starter · #1 ·
2014 ecoboost. Got in truck and started and heard a pressure release of some sort. AC quit working. Compressor clutch still engaged and running. Coolant shows low. Added 12 oz of coolant and air ice cold again. One week later, same thing. Does this system have a pressure relief valve? I'm guessing it does, and whats causing this issue? A partial blockage perhaps? Expansion valve? Any thoughts appreciated. Thanks
 
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