C6 A/C help!!!
Thread Starter
Drifting
Joined: Sep 2004
Posts: 1,961
Likes: 2
From: Fort Knox
C6 A/C help!!!
about a year ago my c6's condenser broke to open air blowing out all the refridgerant. The car sat for about a year with it open to air (but stored in dry conditions in my shop). Now I have the car running fine and have replaced the condenser. I have a vacuum pump and guages and have filled my old 86 corvette's compressor 20-30 times over the years due to a slow leak so I know how to use the guages and all.
My main question for my C6 is, should I bother replacing the orifice tube? I mean, its not like anything got in the lines or anything, at the time of failure everything was exiting the lines
Also, what viscosity of a/c oil should I put in, how much and if at all?
We had our first 80 deg day today here in Kentucky so I want to get this fixed soon!....even if it is a convertible.
My main question for my C6 is, should I bother replacing the orifice tube? I mean, its not like anything got in the lines or anything, at the time of failure everything was exiting the lines
Also, what viscosity of a/c oil should I put in, how much and if at all?
We had our first 80 deg day today here in Kentucky so I want to get this fixed soon!....even if it is a convertible.
Thread Starter
Drifting
Joined: Sep 2004
Posts: 1,961
Likes: 2
From: Fort Knox
I'm still not sure what PAG should or if I need to add.
Melting Slicks
Joined: Dec 2006
Posts: 2,694
Likes: 106
You need to PRECISELY follow the service manual for your model year man. I'd purge the system and specifically fill it with the appropriate amount of refrigerant and oil. The refrigerant amount should be posted on a yellow label somewhere in the engine compartment. But don't recall that label having the amount of oil needed. Get the service manual instructions and do it by the book. I'd only use the gauges for future reference. Once done by the book, you can just write down both the high and low pressures, and next time would be easier. Most gauges are universal, and there's a huge difference in cooling performance within the green range, so I wouldn't go by that alone. Good luck.
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
Knowing how much oil to put in at this point is tough,Usualy the condensor is 3 to 6 oz and dryer 3 oz and evap 11/2 or 2 and compressor 3oz but that is an empty system,of standard issue depending on the size coud be more or less.
Racer
Joined: Aug 2005
Posts: 425
Likes: 0
From: odessa TX
sorry we use universal pag oil from gm the viscosity is 150 if you get it at auto zone......
normally if a a/c system suffers from an abrupt loss of a/c ref. you should add additional oil to compensate but I don't know your particular circumstance and you don't want to add too much oil...
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Thread Starter
Drifting
Joined: Sep 2004
Posts: 1,961
Likes: 2
From: Fort Knox
Thanks for all of the replies. I ended up going to a GMC dealership and a Chevy dealership to ask them what they used and they just showed me a bottle of PAG fluid that said on the bottle it was for all PAG viscosities. I found that a bit odd. I ended up talking to one of my buddies that works at Oriley auto parts and he had to look up in a "Murray" book (whatever that is) for the viscosity. He told me for my car, it's 150. So I picked up a little bottle of it and will add 1 oz tomorrow and then charge it.
Also, Walmart is having a 9.99 134a sale right now....but they were sold out at the local store
Also, Walmart is having a 9.99 134a sale right now....but they were sold out at the local store