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Re: AC issue

Posted: Sat Apr 08, 2017 5:27 am
by jhonster
Silversled wrote:
jhonster wrote: Question. How did you pull the line out? Did you take the radiator out and go from the front. Or try to sneak it by the side coming out along the rack and pinion and suspension? Thanks.
Removing the old line was the biggest pain in the a$$. However I did sneak it between the radiator hoses with the radiator in place. The upper radiator brackets were removed to gain access to the a/c condenser connection to the hose. Mine is a 2014 with the electric steering rack so I'm not sure if the hydraulic rack will have more or less clearance.
It IS a major pain in the ass to replace the A/C manifold on these cars. The hose starts to leak because the driver side motor mount moves too much or is separated. The constant torquing of the engine back & forth causes the hose to eventually leak. Bad design having rubber motor mounts. I just got the motor mount replaced under the fac powertrain warranty for free, but they wouldn't do the hose. I tried to sneak it out on the right side past the R. strut. It wont come out that way. So I'm going to try to take it out the top. Probably will need to remove the radiator.

Re: AC issue

Posted: Sat Apr 08, 2017 10:52 am
by xcidmigs
Good luck with all that, i just had the rad out for a cam swap and had to monkey around with the ac lines and power steering cooler which i didn't even realize was there.. the front end packaging on these is a mess, i can't imagine what they do on cars hit in the front besides totaling them...

Re: AC issue

Posted: Fri Apr 14, 2017 10:02 am
by jhonster
Silversled wrote:
jhonster wrote: Question. How did you pull the line out? Did you take the radiator out and go from the front. Or try to sneak it by the side coming out along the rack and pinion and suspension? Thanks.
Removing the old line was the biggest pain in the a$$. However I did sneak it between the radiator hoses with the radiator in place. The upper radiator brackets were removed to gain access to the a/c condenser connection to the hose. Mine is a 2014 with the electric steering rack so I'm not sure if the hydraulic rack will have more or less clearance.
Just got done fixing one on a 2013 Caprice PPV. With the hyd rack and pinion, I had to undo the compressor from the eng block & move forward (left it in the car) it to make room so the compressor side connection of the A/C manifold could be removed from that cubby area & out through the top. A complete hassle of a job. Originally, I was going to try to take it out through the side and removed right side forward suspension radius arm...which actually made it easier to get to the compressor mounting. But, the line is too long to come out the side. It butts up against the strut. So, I did as you did. And fished it out through the top. I had to disconnect the trans cooler hoses in order to get the line past them, so I had to do about a 2 qts addition of fluid to the trans afterwards.

I was pissed at the dealership (Rydell in Northridge, Ca.) where the car was getting 4 recalls fixed. One of them being the drivers side motor mount which caused the A/C line to originally fail. When I asked them to fix the A/C line under the fac powertrain warranty (100K on govt vehicles), they basically told me to go pound sand. Even though there's another dealership in Los Angeles that we deal with that DOES replace the A/C line free of charge under the power train warranty. I think this is wrong on GM's part and needs to be addressed. There needs to be a recall issued over this because it's letting controlled gasses get into the atmosphere. And GM has been made aware of the failure.

Re: AC issue

Posted: Wed May 30, 2018 9:54 pm
by Bwillia97
Jt.kline19 wrote:AC recharged fixed the issue so far. Appears I was low on freon. I evacuated the system an put new freon an oil in. AC blows like wind chill.
So, getting the system evacuated and recharged fixed the warmer air on the passenger side as well? I'm having an issue where the driver's side is cool, but the passenger side is warm with a slight bit of cool air. I'm wondering if a recharge will help me with that issue. Thanks!

Re: AC issue

Posted: Wed Jul 08, 2020 2:19 am
by Capeasy
let me know if that fixed the issue, I'm having the same problem I think its a damper door hanging up or so.

Re: AC issue

Posted: Mon Jul 27, 2020 7:23 am
by cerbomark
I had the drivers side AC cool but not cold and the passengers side warm. A re charge made both sides cold. It was low and although no leaks found we did put dye in the system in case it doesn't t last. Thought you d like to know before you all start messing with actuators , blend doors etc etc.

Re: AC issue

Posted: Wed Jul 29, 2020 2:31 pm
by CrashTestDummy
cerbomark wrote: Mon Jul 27, 2020 7:23 am I had the drivers side AC cool but not cold and the passengers side warm. A re charge made both sides cold. It was low and although no leaks found we did put dye in the system in case it doesn't t last. Thought you d like to know before you all start messing with actuators , blend doors etc etc.
Check the high side charging port. They screw into a boss on the tube, and are prone to failure. It was leaking on our '12. I could see the leak with a UV light and the proper glasses, as the fitting didn't look that bad just by looking at it.

Re: AC issue

Posted: Wed Jul 29, 2020 4:50 pm
by cerbomark
do I just get a uv flashlight? Black light.
The tech said he checked system after refill.

Re: AC issue

Posted: Fri Jul 31, 2020 3:40 pm
by cerbomark
CrashTestDummy wrote: Wed Jul 29, 2020 2:31 pm
cerbomark wrote: Mon Jul 27, 2020 7:23 am I had the drivers side AC cool but not cold and the passengers side warm. A re charge made both sides cold. It was low and although no leaks found we did put dye in the system in case it doesn't t last. Thought you d like to know before you all start messing with actuators , blend doors etc etc.
Check the high side charging port. They screw into a boss on the tube, and are prone to failure. It was leaking on our '12. I could see the leak with a UV light and the proper glasses, as the fitting didn't look that bad just by looking at it.
got the light and glasses. Checking the high side port I can see the glow on the inside area, I am assuming that s where it is from re filling. Will it be all over the outside if it s leaking? I see no leaks. so where did the freon go?

Re: AC issue

Posted: Fri May 28, 2021 10:26 pm
by bstoner
Wanted to 2nd this. Common issue on the GM high side ports without the Schrader valve. You can clean the inside of the port then see the dye after some time. I was also getting bubbling inside the port.