A/C Issues - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

farm rat · 07-30-2019, 12:02 PM

SO, the original compressor went out (broken internal shaft?). 1st replacement squalled like a gear box going out and would not stay engaged. 2nd replacement (same brand) did the same thing. 3rd replacement (GM this time) no noise issue but it blows intermittent cold then warm air. I have tried it with the recirculation on and off. Does not seem to make a difference. I also tried it on a warmer setting than max a/c and he seemed to get colder. Any ideas?

2011 1LS

Tajefe Couple · 07-31-2019, 07:36 PM

Sometimes when mechanics put compressors on they add to much oil thinking they need to add all the oil for the entire system. Since the oil circulates into the system they do not need to add that much. There is a proper amount that needs to go in when just doing certain parts such as the compressor. You then get a problem with things like the expansion valve getting oil sludge in it and not working properly since to much oil is in the system. If the expansion valve acts up you go from cold to warm air even with the proper charge.
Might evacuate the system and get the oil out and recharge properly.
I'm not a mechanic but having some AC issues as well. This is just some info I picked up while researching and troubleshooting my issue so please ask someone who knows better than I, just trying to help with ideas what the problem could be.
Might also look at this post
https://www.camaro5.com/forums/showt...1#post10585701
GL

07-30-2019, 12:02 PM	#1
farm rat Drives: 2011 Vistory Red 1LS Join Date: May 2018 Location: Missouri Posts: 487	A/C Issues SO, the original compressor went out (broken internal shaft?). 1st replacement squalled like a gear box going out and would not stay engaged. 2nd replacement (same brand) did the same thing. 3rd replacement (GM this time) no noise issue but it blows intermittent cold then warm air. I have tried it with the recirculation on and off. Does not seem to make a difference. I also tried it on a warmer setting than max a/c and he seemed to get colder. Any ideas? 2011 1LS __________________ The Original Farm Rat 2011 1LS M6 Victory Red Sold 1967 Coupe Green and White 1969 SS 396 Hugger Orange 1969 Z/28 All original White with deluxe interior 1970 RS Blue 1978 Coupe Fugly Green 1978 WS-6 Trans-Am Factory 4 speed 1985 IROC-Z Red

07-31-2019, 07:36 PM	#2
Tajefe Couple Drives: Never just fly under the radar Join Date: Jul 2015 Location: Kansas Posts: 1,531 View My Garage	Sometimes when mechanics put compressors on they add to much oil thinking they need to add all the oil for the entire system. Since the oil circulates into the system they do not need to add that much. There is a proper amount that needs to go in when just doing certain parts such as the compressor. You then get a problem with things like the expansion valve getting oil sludge in it and not working properly since to much oil is in the system. If the expansion valve acts up you go from cold to warm air even with the proper charge. Might evacuate the system and get the oil out and recharge properly. I'm not a mechanic but having some AC issues as well. This is just some info I picked up while researching and troubleshooting my issue so please ask someone who knows better than I, just trying to help with ideas what the problem could be. Might also look at this post https://www.camaro5.com/forums/showt...1#post10585701 GL __________________ 1-8-4-3-6-5-7-2 Old Skool