06-24-2013, 07:34 PM | #85 |
Drives: ZL1 #529 "El-Jefe" Join Date: Mar 2012
Location: Las Vegas, NV
Posts: 668
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06-24-2013, 09:54 PM | #86 |
Dry Heat My @ss
Drives: 2012 ZL1 SUMMIT WHITE Join Date: Mar 2012
Location: Chandler, Arizona
Posts: 758
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[QUOTE=thespymaster;6710120]I have the same problem, but found the simple fix. At startup I just turn off the A/C and cruise for about 1/2 mile and click back on the A/C and BAM..........kicks in the ICE COLD AIR!!
That's exactly what I did last summer. Has happened only that one time. Mine blew hot and I immediately shut off the A/C and turned it back after only a few seconds and cold air returned instantly.
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2012 #1765: Xpel Clear Bra, 15% Tint, M2W, LPE GT9 Cam, Ported Heads & Snout, Upgraded Valve Train, 90mm TB, LPE Dual Fan HX, 2.55 Upper, 9.1 Lower (18%), Id850's, KB BAP, Roto-fab CAI, AR Stainless Headers, 673 rwhp, A6, Nothin but Fun!
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06-24-2013, 10:00 PM | #87 |
Drives: 02 SS 35th LE Vert, 2013 ZL-1 Vert Join Date: Jul 2012
Location: Chandler, AZ
Posts: 133
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I am in and out of the car throughout the day and with the AZ heat I have been waiting for it to happen. It finally happened last week after sitting in the sun for about 30 minutes. I simply turned the A/C off and then turned it back on and within a few seconds cold air started to come out. Hasn't happened since, but expect it most likely will sooner than later.
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06-25-2013, 02:08 PM | #88 | |
Drives: C7 / ZL1 / SS / trucsk Join Date: Nov 2009
Location: G4 CLASSIFIED
Posts: 4,533
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Quote:
But the fact that the simple fix is TURN OFF/ON AC after a short distance, tells me some about the radiator needs time to cool done or at least for the fans to kick on ? |
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06-25-2013, 02:53 PM | #89 |
Drives: '12 ZL1 #1609 Join Date: Feb 2010
Location: Georgia
Posts: 1,762
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Sounds to me like a signal is not being sent to the compressor to turn it on, everything is fine mechanically as you guys do get cold air after turning it off and back on, a reset of sorts. a coding error on some electronic component to the AC? I've been fortunate to not have this problem yet.
Long shot but perhaps failure of the Ambient Air Temperature Sensor? ACDELCO Part # 25775833 Too bad we don't have digital versions of the service manuals to refer too...
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06-25-2013, 04:54 PM | #90 | |
Drives: C7 / ZL1 / SS / trucsk Join Date: Nov 2009
Location: G4 CLASSIFIED
Posts: 4,533
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Quote:
We have dry heat in triple digits, you have humidity and hover around 85-90, big difference when 100-115 |
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06-25-2013, 05:06 PM | #91 | |
HAMMER PILOT
Drives: 13 ZL1#182, 85 CJ7, 16 Silverado Join Date: Nov 2011
Location: Tucson AZ
Posts: 4,386
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Quote:
I have tried shutting off the car with the A/C set full blast but when I start it again it blows warm, there must be some switch (like he said about the compressor) that won't kick in under high temps. I would think it would have to be outside the engine compartment bcause it is always hot there. Must be somewhere in the on the other side of the firewall from the engine.
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06-26-2013, 09:51 AM | #92 |
Drives: '12 ZL1 #1609 Join Date: Feb 2010
Location: Georgia
Posts: 1,762
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Can someone at least check that the compressor is running when this happens? Obviously before doing the on/off trick. It is something to rule out...
Right now we are 85-90, Where I'm at we get triple digits too, though you would think that the humidity would make the problem worse?
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06-26-2013, 10:28 AM | #93 |
Drives: 2018 ZL1 1LE (2)79Z28 72RS 67SS 69Z Join Date: May 2009
Location: Arizona
Posts: 422
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Good news - Fix allegedly found for the ZL1 AZ heat soak AC problem.
Not sure you saw my post in the 2013 AC thread.
http://www.camaro5.com/forums/showpo...3&postcount=28 So far I have not had a repeat of the problem after Chapman fixed it. I picked her up 06/22/13 and am enjoying the cold life! Good news - Fix allegedly found for the ZL1 AZ heat soak AC problem. Chapman my dealer says they finally figured out how to solve my ZL1 AC heat soak problem! - I have been experiencing this all last summer and again this summer. With a full factory specified charge of freon and when its real hot the AC High Side Freon switch prevents the AC compressor from turning on. This senerio happens when you drive it in the 102+ heat and then stop like to go into a store or to fill up on gas. When you start the car the AC compressor does not turn back on until you can go about 45mph. This also sometimes happened when I would idle for an extended period with the AC on too. But while idling the AC is initially fine but after the the heat soak it's when your driving that the high side switch acts this way. This was hard to diagnose without a computer monitoring when the high side switch prevented the compressor from turning on. By removing about 2oz of fluid it was noticed that it prevents this situation and according to my AZ service advisor it actually cools better here this way also. - I pick up my ZL1 tomorrow and will try it myself. I'm not sure this reduction of freon would help others in more humid climates but the high side switch acting this way might be something to watch for. GoodTimes!
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06-26-2013, 10:34 AM | #94 |
Drives: ZL1 #529 "El-Jefe" Join Date: Mar 2012
Location: Las Vegas, NV
Posts: 668
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Hope it was a GM approved fix and put out a TSB on this..
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06-26-2013, 10:57 AM | #95 | |
HAMMER PILOT
Drives: 13 ZL1#182, 85 CJ7, 16 Silverado Join Date: Nov 2011
Location: Tucson AZ
Posts: 4,386
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Quote:
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06-26-2013, 03:57 PM | #96 | |
Drives: '12 ZL1 #1609 Join Date: Feb 2010
Location: Georgia
Posts: 1,762
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Quote:
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06-26-2013, 09:13 PM | #97 |
Drives: Camaro's, always have, always will. Join Date: Oct 2010
Location: Home of the brave
Posts: 4,851
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...and the temps are expected to rise even higher this week in the southwest, ....wheeeeh, you guys have it rough out there. Talk about hot.
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06-26-2013, 09:31 PM | #98 |
Drives: 2013 2SS 6M Join Date: May 2013
Location: eastern high sierra
Posts: 893
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at 110 ambient the pressure on the high side of your ac is 230psi...thats right at the end of the scale....
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