Hi I am going to probably replace my A/C seals this weekend. Their is no refrigerant in the system as of now. I assume it leaked out the car sat for awhile without being run so I think the seals shrunk. I have a 1992 Cadillac Deville. It had R12 in it. I have a half of a 30lb bottle of R12 right now. So once I replace the seals and schrader valve I am going to pull a vacuum and see if it holds if not I will fill the system with nitrogen and find the leak that way. Now for my question this system only has a low side port with a schrader valve in it. The high side does not have a schrader valve in it and it almost looks like a quick connect coupling. Can I pull a vacuum only using the low side of my manifold gauges or do I also have to do the high side also. If so how would I pull a vacuum on the high side. Thanks.
have the same problem?
Friday, May 23rd, 2014 AT 3:06 PM