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Old 08-23-2011, 04:03 PM   #1
Camaromann
 
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2012 Air Conditioning issues.....

Well.......the 2012's are not immune to A/C problems either !

3 days with the car and the A/C (with less than 100 miles) was acting strange. It was not freezing cold (that is typical of GM cars) and then it went warm - then cold- then semi-cold - then cold - regardless of RPMs or outside temp.

I took it to the dealer this morning and they told me that there is already a reprogram for the computer relating to this issue. They promptly hooked up a laptop to the car and reprogrammed it, and on the way home the A/C was 100% cold the way it should be.

You would think that with the 2012 model year, the factory would have cleared out any known issues to these cars. I am told that my car was the 1st 2012 delivered in Miami. Regardless, the issues appears to be resolved - for now. I hope for good.........
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Old 08-23-2011, 04:17 PM   #2
SS_Matt
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Thanks for the heads up. I'll pay close attention when mine comes in in the next couple weeks.
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Old 09-11-2011, 06:47 PM   #3
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2012 A/C still not cold....

After 2 more weeks with my new 2012 Camaro, and 500 miles later, the A/C is still not cooling properly. 2 weeks ago, the dealer reprogrammed the computer, but did nothing else.

The A/C appears to cycle on and off frequently, and the air does not cool down properly. It is extremely uncomfortable down here in Miami wotjhout cold A/C.

Is anyone else having this type of A/C issue with their cars?
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Old 09-12-2011, 01:51 PM   #4
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I just traded in my '11 and noticed that the AC does blow, literally. Took it to the dealer and he said to start using the recirculation button. After that, this OKC heat was tolerable.

The new '12 I traded for has the same issue. Use recirculation and it helps. The '11 Buick Lacrosse loaner that they gave me had an awesome AC, though so I'm wondering what Chevy forgot to do that has us griping about it.
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Old 09-12-2011, 02:29 PM   #5
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I had my 09 Traverse to the dealer 2 times for the same issue. Guess what it was? Low on freon. They did not even check that the first time..they put a new temperature senson on it the first time

OP, my symptoms were exactly like yours...erratic. Not like the old days when it just was not quite cold enough
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Old 09-12-2011, 03:34 PM   #6
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Quote:
Originally Posted by f5journal View Post
I had my 09 Traverse to the dealer 2 times for the same issue. Guess what it was? Low on freon. They did not even check that the first time..they put a new temperature senson on it the first time.....OP, my symptoms were exactly like yours...erratic. Not like the old days when it just was not quite cold enough

TOMORROW (9/13) I HAVE AN APPOINTMENT WITH THE MOST EXPERIENCED MECHANIC AT THE LOCAL CHEVY DEALER. I SPOKE WITH HIM TODAY, AND HE ALSO STATED THAT DESPITE THE COMPUTER READINGS, HE IS GOING TO EVACUATE THE ENTIRE 134a REFRIGERANT OUT OF THE SYSTEM, WEIGH IT TO DETERMINE IF WAS UNDER-CHARGED AT THE FACTORY, AND THEN REFILL THE SYSTEM TO FACTORY SPECIFICATIONS. I HAVE MY FINGERS CROSSED, BECAUSE IT IS WAY TOO HOT DOWN HERE IN MIAMI TO HAVE A NEW CAR WITH WARM A/C. AND YES....I ALWAYS LEAVE THE A/C ON RECIRCULATING MODE.
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Old 09-12-2011, 04:41 PM   #7
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Quote:
Originally Posted by Camaromann View Post
TOMORROW (9/13) I HAVE AN APPOINTMENT WITH THE MOST EXPERIENCED MECHANIC AT THE LOCAL CHEVY DEALER. I SPOKE WITH HIM TODAY, AND HE ALSO STATED THAT DESPITE THE COMPUTER READINGS, HE IS GOING TO EVACUATE THE ENTIRE 134a REFRIGERANT OUT OF THE SYSTEM, WEIGH IT TO DETERMINE IF WAS UNDER-CHARGED AT THE FACTORY, AND THEN REFILL THE SYSTEM TO FACTORY SPECIFICATIONS. I HAVE MY FINGERS CROSSED, BECAUSE IT IS WAY TOO HOT DOWN HERE IN MIAMI TO HAVE A NEW CAR WITH WARM A/C. AND YES....I ALWAYS LEAVE THE A/C ON RECIRCULATING MODE.
You might have this tech see if there is a pin hole leak somewhere as that was what was wrong with mine. The dealer found a small crack in the condenser using a freon sniffer. I can totally understand the need to AC, hotter than hell in Phoenix AZ this year.
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Old 09-12-2011, 04:43 PM   #8
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Hopefully that gets things sorted out for you Camaromann. I did get your message and I'm sorry to see that you're still having issues.

Jeff Morris, Chevrolet Customer Service
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Old 09-13-2011, 05:23 PM   #9
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A/C ice cold for now.....

Quote:
Originally Posted by Chevrolet Customer Svc View Post
Hopefully that gets things sorted out for you Camaromann. I did get your message and I'm sorry to see that you're still having issues.

Jeff Morris, Chevrolet Customer Service
--------------------------------------

To repeat my problem: The A/C was inconsistent and going from cold to warm to cold - on a repeated cycle. No strange smells, no clicking noises, and the compressor did not appear to be cycling on and off.

Okay....after five hours at the local dealer, the A/C is finally working like it should. (SO FAR)

First, the mechanic removed all of the 134a from the system and checked the content. He found that there was 2 ounces of freon TOO MUCH. The system is supposed to have .54kg (approx. 19 ounces) and my car had .61kg (approx. 21 ounces).

Then, he called GM to check if there was anything in their database relating to A/C issues for 2012, and asked them if having 2 extra ounces of 134a would effect the system's performance. Nothing to report from GM.

Then he refilled the system with the proper amount of 134a, and then hooked up a laptop computer to recalibrate the actuators for the internal dampening doors. Finally, he checked the A/C system control board.

We went drove for a 3 mile test drive in 95 degree weather, and the A/C was (finally) ice cold. More importantly, it stayed cold and did not cycle cold/warm/cold like before.

The mechanic thinks that the extra freon might have caused higher operating pressure, which might cuase the compressor to cycle too frequently. But, only 2 extra ounces - he discounted that as a reason for the problem. He did conclude that the recalibrating of the actuators for the dampening doors is most likely the reason for my issues. He explained that these doors open and close (to blend the cold air with heated air to acheive the desired temperature) based on an electrical voltage variations. He explained that the compressor is always working like it should, but that it is most likely that I was getting warm air blending intermittantly with cold air.

Problem solved. SO FAR. I have driven my car another 35 miles during intense afternoon heat & humidity, and all appears to work well.
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Old 05-22-2012, 07:44 PM   #10
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I have a 2012 2SS and have a problem of not enough COLD air...... Is there still a problem? mY computer was reprogrammed and has made no difference @ 3000 miles
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Old 05-22-2012, 09:15 PM   #11
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i havent even used my ac yet. guess i better check mine out next time i drive it
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Old 05-22-2012, 10:41 PM   #12
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Mine cracked some little plastic high pressure valve. Got it replaced and now have cold air again
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Old 05-23-2012, 08:40 AM   #13
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Quote:
Originally Posted by ohsnow View Post
I have a 2012 2SS and have a problem of not enough COLD air...... Is there still a problem? mY computer was reprogrammed and has made no difference @ 3000 miles
I do apologize for your frustration concerning this issue. Have you taken it back to the dealership for diagnosis? This would be the best thing to do. Please keep me updated.

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Old 05-24-2012, 09:39 AM   #14
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took mine back for reprogram.... didn't get cold enough..... took back again due to wet sock smell.... they programmed evap fan to run longer? seems better.
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Old 05-24-2012, 10:06 AM   #15
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[QUOTE=Camaromann;3749310]--------------------------------------
"First, the mechanic removed all of the 134a from the system and checked the content. He found that there was 2 ounces of freon TOO MUCH. The system is supposed to have .54kg (approx. 19 ounces) and my car had .61kg (approx. 21 ounces).
The mechanic thinks that the extra freon might have caused higher operating pressure, which might cause the compressor to cycle too frequently. But, only 2 extra ounces - he discounted that as a reason for the problem."

Overcharged A/C system will act just like an undercharged system and give less than desirable results. 2oz doesn't seem like much but if it only holds 19oz, your talking about a 11% overfill. Glad you got it all taken care of.
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Old 05-24-2012, 02:57 PM   #16
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My A/C doesn't cycle, it blows "cool" but not cold as it should. I have to keep the fan speed up real high to keep cool. Would a computer reset be the problem, or is it too much refrigerant?
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Old 05-26-2012, 03:29 PM   #17
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Quote:
Originally Posted by ohsnow View Post
took mine back for reprogram.... didn't get cold enough..... took back again due to wet sock smell.... they programmed evap fan to run longer? seems better.
I get that wet sock smell too, when the A/C is not running...is this a common problem?
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Old 05-31-2012, 11:23 AM   #18
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Wow, sorry to hear about all of these issues. I keep my AC fan speed on 1, and sometimes it feels too cold (and I like the cold), so I have to take the temperature off of Max. One thing that I have noticed, is that I occasionally start the car and the AC light is off, or the AC and Recirculation light is off. I can't recall if this is only when I turn the AC off (by turning the fan speed down all the way), or if it happens even without doing that. I'll try to pay attention to that next time.
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Old 05-31-2012, 01:06 PM   #19
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My ac also sucks and too think i traded my 10 on this
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Old 06-01-2012, 01:59 AM   #20
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I live in Phoenix, AZ. My AC blows cold and keeps up with the heat. But my AC blower motor seems to variations, especially noticable when I'm idling. I have Flowmasters, so hearing the blower variations is impossible. Could this be due to something simple like reprogramming? Perhaps a weak alternator or battery? I don't see anything online regarding this issue...
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Old 06-06-2012, 04:18 PM   #21
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Is it normal for the recirculation light to stay on even if the AC is off
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Old 06-06-2012, 04:24 PM   #22
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Quote:
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Is it normal for the recirculation light to stay on even if the AC is off

On page 8-2 in the owner's manual it states:

(Recirculation): Press to turn on the recirculation. An indicator light comes on. Air is recirculated inside the vehicle. It helps to quickly cool the air inside the vehicle or prevent outside air and odors from entering. Operation in the recirculation mode while the air conditioner is off increases humidity and may cause the windows to fog. Recirculation is not available in the defrost or defog modes. To improve fuel efficiency and to cool the vehicle faster, recirculation may be automatically selected in warm weather. The recirculation light will not come on. Press the little recirculate button to select recirculation; press it again to select outside air.

I hope this information was helpful.

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Old 06-09-2012, 12:58 PM   #23
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Quote:
Originally Posted by azrickster View Post
I live in Phoenix, AZ. My AC blows cold and keeps up with the heat. But my AC blower motor seems to variations, especially noticable when I'm idling. I have Flowmasters, so hearing the blower variations is impossible. Could this be due to something simple like reprogramming? Perhaps a weak alternator or battery? I don't see anything online regarding this issue...
UPDATE
Got the Camaro back from the Dealer. Turns out there was nothing wrong with any of the mechanical components. The issue was related to a simple reprogram of the AC system. We're back up and running like new.
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Old 06-10-2012, 03:03 AM   #24
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The AC SUCKS in these cars. I never had a car with such bad AC.

I brought my car in for the AC fix because I noticed that the AC would not shut off even when I turn it off. Ever since I brought it in, the AC would shut off when I turn it off but the air is never as cold as it should be. The air is cool, but not cold.
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Old 06-10-2012, 05:57 AM   #25
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Originally Posted by edgehead2000 View Post
I just traded in my '11 and noticed that the AC does blow, literally. Took it to the dealer and he said to start using the recirculation button. After that, this OKC heat was tolerable.

The new '12 I traded for has the same issue. Use recirculation and it helps. The '11 Buick Lacrosse loaner that they gave me had an awesome AC, though so I'm wondering what Chevy forgot to do that has us griping about it.
You should always use the recirc whenever possible. The car gets better gas mileage and the air is much colder because it's not cooling air from the outside and brining it into the car. It recirculates the cooler air inside the vehicle making the A/C run less and improving mileage and cold air at the same time.
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