Audible Hissing when Refilling Refrigerant
Hello all, I recently bought some refrigerant for my 2014 sonic and as I was emptying the refrigerant can into the system it was making the ac run cool air in the cabin, but immediately after I stopped I heard a constant loud hiss that could be heard outside and inside the car.
Eventually it stopped but as this was happening and afterwards the ac wasn’t working like it was as I was filling it. I’m wondering if this sounds like an issue that would be resolvable on my own and what I would need to do so, or if it’s something I should have a mechanic do. Thanks!