Hi,
Make sure you are on the low-pressure line. It won't fit the high pressure and certainly, don't try attaching to it.
Since everything is working and you hear identified the compressor is working, the problem is likely in the vehicle. If you told me the A/C just wasn't cold enough, then I would check the charge. Note: The compressor wouldn't turn on if the Freon was too low.
So, that leaves what is called a bend air door. This is in the vehicle and responsible for the air temperature entering the cabin. However, there are two of them, one for the driver's side and one for the passenger's side. I don't feel both would fail at the same time. But I'm not 100% sure what you are experiencing.
You indicated the A/C isn't working properly. Does it work at all? Explain the symptoms.
I will watch for your reply.
Joe
Saturday, May 28th, 2022 AT 9:50 PM