I just put a new a/c compressor, accumulator and orifice on my daughters 2002 cavalier. Can i recharge the system with cans of r134a and pag 150 bought from advanced auto or is this something that should be done by the shop? If so is there any instructions on how to complete this recharge anywhere?
Evacuate & Recharge Procedure
Don't use the oil cans, pour in your oil while the system is open. The proper total amount of oil is important. Any oil that comes in a new compressor should be drained and replaced with fresh oil from a sealed container (PAG exposed to the air gets "wet" like brake fluid does). Charge with plain R-134a after evacuating. Your first can should be one with UV dye in it to help find any leaks later. Other than use no additives. Dye cans must be emptied while held upside down so the dye doesn't just stay stuck at the bottom. Do that with the engine off.
Edited: Tue June 21, 2011 at 11:37 AM by mk378
If you don't own or have access to a vacuum pump, take it on down the road to a local shop. They will charge you for about 1/2 hour of shop time, plus the refrigerant. They can connect a machine that will evacuate for ~.5/.75 hour, wait for a while to see that the vacuum is held, then inject the dialed-in amount of refrigerant, almost without touching by the operator. It insures the proper charge, a good vacuum and pretty much makes for less problems.
I haven't put dye in any of my cars, but it sounds like a good idea. There are also small tubes of dye available that can be attached to a gauge manifold and sucked into the system that has been previously charged.
simplificate and add lightness
Thank you all for your help. I really do appreciate it.
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