[mfiazzo]

Bob, I have seen many guys add refrigerant to a system or "purge" a system instead of pulling a vacuum and you are correct, the system will still work. It most likely will not work to it's full capacity, and it probably won't blow as cold of air as it would if you did it correctly. We all know in a Porsche we want the coldest air possible.

Since the line is already broken the system has been compromised so to do it correctly, he would have to pull a vacuum.