Hello everybody, I’ve been having the problem for some time now that the tank is no longer ventilated. Every time you refuel, there’s a loud hissing when you open the tank lid. The warmer the worse. Last summer, my wife came back without refueling, because she couldn’t open the tank lid. In fact, it took a lot of effort to turn the lid. He was under tremendous pressure. In winter, that wasn’t so bad now, but for the coming summer, I wanted to help here. Has anyone ever had this before? What was the cause? Thank you and greeting