Can a botched r134a retrofit be reversed?
It appears the previous owner did a do-it yourself retrofit to r-134a refrigerant in the Air conditioner of my car, and it doesn’t work. Has the Rubicon been crossed and I can’t evacuate the system and go back to the original r-12? I have a lot of r12 in the shed doing nothing and I’ve not heard great things about retrofitted systems.
This question is in the General Section. Responses must be helpful and on-topic.