08/13/2025
PSA: yes the new 1234yf will work in a 134a unit. But doing this is still stupid. Once you cross contaminate the oils and refrigerant. The only way to fix it is a new act system. That's a new compressor, drier, expansion valve and condensor (because they cannot be flushed out). Half the time and new evaporator. So youtube saved you 70 dollars so in the long run you pay 1200 to 3000 on average. Youtube is not always your friend.