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Old 04-07-2012, 06:56 PM   #1
ajp
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Engine temp too high, AC deactivated?

WTH!

Had this happen twice today. Outside temp was 88-90c. The fan finally started working and the temp returned to normal but it freaked me out.

Is there a recall or update I need?
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Old 04-07-2012, 07:00 PM   #2
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When you first started it, or when it had been running a while?

The fans should come on before you get overheating warnings. How hot was it? Did the gauge go up, or where you looking at the digital temperature display?
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Old 04-07-2012, 07:05 PM   #3
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The AC is supposed to turn off if the engine is over heating, that is normal. It's in the manual.
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Old 04-07-2012, 08:06 PM   #4
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When you first started it, or when it had been running a while?

The fans should come on before you get overheating warnings. How hot was it? Did the gauge go up, or where you looking at the digital temperature display?
I had traveled about 30 miles/30 mins.

I was stopped at a light both times.

The temp gauge got 3/4 of the way to red.
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Old 04-07-2012, 08:37 PM   #5
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I had traveled about 30 miles/30 mins.

I was stopped at a light both times.

The temp gauge got 3/4 of the way to red.
Sounds like the fans are not coming on early enough. Probably something you want to have checked out. I'm assuming you're still under warranty.

Does this happen every time you stop and idle, or is it more sporadic. If every time, it should be easy for your dealer to reproduce.
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Old 04-07-2012, 08:47 PM   #6
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First time. But I dont drive very far usually. Was thinking that the fan should have kicked in earlier.
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Old 04-07-2012, 09:09 PM   #7
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ajp. I would agree with fielder. You may want to get this checked over. Hopefully your still covered for this. Let us know how things go for you and if you have any troubles getting things taken care of let me know.

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Old 04-07-2012, 10:46 PM   #8
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ajp. I would agree with fielder. You may want to get this checked over. Hopefully your still covered for this. Let us know how things go for you and if you have any troubles getting things taken care of let me know.

Jeff Morris, Chevrolet Customer Service
Thanks Jeff,

I have the extended 50k/84 month warranty, but my car only has 7k miles on it anyway lol.

I do have a CAI inc CAI, not sure if that would cause an issue. I will get it checked out Monday and update the thread.
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Old 04-08-2012, 12:30 AM   #9
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Have you checked you coolant?
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Old 04-08-2012, 01:56 AM   #10
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I am the FIRST camaro owner that experienced this problem... i assume you are talking about THIS correct??



If this is what you saw send me a PM.. this happened to my 1LT/RS just barely after i had it for no less than a month.. it happened multiple times after the service techs had replaced the Temp gauge and the PCM... but they wouldnt take my car back so i traded it for the 1SS I have now.. your car is NOT overheating.. its an electrical malfunction somewhere....
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Old 04-08-2012, 04:29 AM   #11
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This happen to my car as well but I thought it was my turbo that was making it to hot under the hood for the AC. So this is an electrical problem ?
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Old 04-08-2012, 11:03 AM   #12
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I am the FIRST camaro owner that experienced this problem... i assume you are talking about THIS correct??



If this is what you saw send me a PM.. this happened to my 1LT/RS just barely after i had it for no less than a month.. it happened multiple times after the service techs had replaced the Temp gauge and the PCM... but they wouldnt take my car back so i traded it for the 1SS I have now.. your car is NOT overheating.. its an electrical malfunction somewhere....
Yep - thats it!
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Old 04-09-2012, 02:48 PM   #13
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I took it to a local place (since I didnt want to drive 30 miles and explode).

They put about 1 gallon of dex+distilled, so I am hoping that was the cause.

Although I would have thought that the 'low coolant' warning would turn on before the coolant got to a level that required the AC to have to be turned off

Anyway hope its fixed, I will get it serviced by a GM dealer in the next few weeks just to be sure.
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Old 04-10-2012, 06:36 AM   #14
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If im not wrong I do not think our cars have a low coolant light, because usually the sensor is located in the expansion tank, since we don't have one, I'm pretty our car is not equipped with the dummy light.

Now this light you are seeing in your dash comes on for a couple reasons, 1 when your engine is overheating, 2 when your ECT sensor is getting faulty readings, 3 when your ECT sensor detects or senses that your coolant is substantially hotter (almost overheating) then the ambient air temperature.

A simple fix for a tech is to observe the ECT data on the scan tool and make sure all parameters are correct, if not, inspect for damaged wires or a faulty sensor. And last but not least, a low coolant level, or improperly mixed coolant can also cause this light to come, like someone posted above.

Top up your coolant to spec, check your freeze protection rating, if all good, drive it and see if the light comes back on. If it does you have other problems, if not your good to go. This light will also set a DTC in your ECM, the tech should be able to pull the code and diagnose it if the problem does ever occur again.
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Old 04-22-2012, 08:36 AM   #15
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I just got the same message Saturday, normal driving, all temp indicators went dashed or as if no power to temp analog indicators. Shut off car, checked everything..... Car would not restart and message remained on. Disconnected battery 5 min, alll indications came back and message was gone. Car started right up, went straight home with no issues and all indications normal. It will sit there till I figure out what caused the loss of indications. I am sure the warning system goes into panic mode when the car can't tell what the operating temps are.....
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Old 04-22-2012, 09:11 PM   #16
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100+ in Vegas today and engine temp never went above 198 and ac never stopped mine works fine
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Old 04-22-2012, 10:02 PM   #17
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100+ in Vegas today and engine temp never went above 198 and ac never stopped mine works fine
r

Yep and in oklahoma last year, no problems with all the 100+ temps.
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Old 06-23-2012, 05:27 PM   #18
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I just got this same message. Did anyone find a fix for this problem.
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Old 06-23-2012, 06:14 PM   #19
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Quote:
Originally Posted by ajp View Post
I took it to a local place (since I didnt want to drive 30 miles and explode).

They put about 1 gallon of dex+distilled, so I am hoping that was the cause.

Although I would have thought that the 'low coolant' warning would turn on before the coolant got to a level that required the AC to have to be turned off

Anyway hope its fixed, I will get it serviced by a GM dealer in the next few weeks just to be sure.
If they added a gallon of coolant and the radiator wasn't overflowing then that's the cause of your problem. You didn't have enough coolant.
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Old 06-23-2012, 06:49 PM   #20
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It was low on coolant.
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