You did a really nice job explaining this. Someone mentioned adding PAG. That is incorrect. Note to others, you do not put PAG in when recharging the system. It must be added when the pump is replaced or a line ruptured and oil leaked out. If that is the case, the system must drained first and the correct amount replaced. Adding PAG to a system with enough oil will tax the compressor shortening its life. It will also not be as cold.
You should be reading the blue pressure line, not the outside pressure line. Your pressure for 134a is read on the blue line not the outside pressure reading. The colored lines match the color of the refrigerant.
You really should have waited at least half hour after you turn evacuator pump off to see if you had any leaks, because you had pump running and said it's holding pressure but it really wasn't yet. Because it's still pulling vacuum so if you had small leak it's really not going to show up unless you turn pump off and wait a little while. Then if you have small leak it will show up
@@DIYD_Do_It_Yourself_Dadwhat if I need to replace the ac compressor? I thought that’s what you needed to do before taking out any components of the AC system
You purged the yellow line by pressing the schrader valve at the manifold, but isn't there air in the blue line also? Shouldn't that be purged also, and if so, how?
To let the freon go down into the system. You hold the can on the side or straight up and the nozzle is on top. You aren’t doing anything except getting pressure into the car
