Replacing A/C Compressor (depressurizing system?)

[CTScott]

Originally Posted by winston856

I just wonder if the system is still pressurized after 4+ years of non use. I didn't want to start disassembling it and get sprayed, don't know if that would even happen

You can verify that by turning AC on and looking a the sight glass on the aluminum tubing. If you don't see any bubbles, then it is likely empty.

To verify that before disconnecting the tubing, you can remove the cover from the valve on the low pressure line (the larger diameter tubing) and pressing the center of the valve for a split second. If nothing comes out it is empty.