Engine temp too high, AC deactivated? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

ajp · 04-07-2012, 06:56 PM

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?

fielderLS3 · 04-07-2012, 07:00 PM

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?

Tyler360 · 04-07-2012, 07:05 PM

The AC is supposed to turn off if the engine is over heating, that is normal. It's in the manual.

ajp · 04-07-2012, 08:06 PM

Quote:

Originally Posted by fielderLS3

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.

fielderLS3 · 04-07-2012, 08:37 PM

Quote:

Originally Posted by ajp

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.

ajp · 04-07-2012, 08:47 PM

First time. But I dont drive very far usually. Was thinking that the fan should have kicked in earlier.

Chevrolet Customer Svc · 04-07-2012, 09:09 PM

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

ajp · 04-07-2012, 10:46 PM

Quote:

Originally Posted by Chevrolet Customer Svc

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.

Avenging Orange · 04-08-2012, 12:30 AM

Have you checked you coolant?

SteveRS · 04-08-2012, 01:56 AM

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....

ChvyBoss · 04-08-2012, 04:29 AM

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 ?

ajp · 04-08-2012, 11:03 AM

Quote:

Originally Posted by SteveRS

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!

ajp · 04-09-2012, 02:48 PM

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.

DJ_BigC · 04-10-2012, 06:36 AM

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.

04-07-2012, 06:56 PM	#1
ajp 50th Anniversary Vert Drives: Camaro 2017 50th Anniversary Join Date: Jul 2009 Location: AZ Posts: 2,315 View My Garage	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? __________________

04-07-2012, 07:00 PM	#2
fielderLS3 Drives: 2016 Mazda6, 2011 Mustang 5.0 Join Date: Mar 2010 Location: Portage, Wisconsin Posts: 4,049	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? __________________ 2022 1SS 1LE (Arrived 4/29/22) "The car is the closest thing we will ever create to something that is alive." . 2022 1SS 1LE (Coming Soon)

04-07-2012, 07:05 PM	#3
Tyler360 Drives: 2011 Camaro 2SS/RS Join Date: Jul 2011 Location: Wittenberg, Wisconsin Posts: 701 View My Garage	The AC is supposed to turn off if the engine is over heating, that is normal. It's in the manual. __________________ My Build Thread:http://www.camaro5.com/forums/showthread.php?t=287531

04-07-2012, 08:47 PM	#6
ajp 50th Anniversary Vert Drives: Camaro 2017 50th Anniversary Join Date: Jul 2009 Location: AZ Posts: 2,315 View My Garage	First time. But I dont drive very far usually. Was thinking that the fan should have kicked in earlier. __________________

04-08-2012, 12:30 AM	#9
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	Have you checked you coolant? __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

04-07-2012, 09:09 PM	#7
Chevrolet Customer Svc Drives: GM Vehicles Join Date: Jun 2010 Location: Michigan Posts: 9,328	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

04-08-2012, 01:56 AM	#10
SteveRS Drives: 2010 SIM Cobalt SS Join Date: Dec 2010 Location: Lorain, Ohio Posts: 6,331	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.... __________________ 2011 Imperial Blue 1.5SS 2010 Silver Ice Cobalt SS

04-08-2012, 04:29 AM	#11
ChvyBoss THAT BOOST TURNS HEADS Drives: Camaro 2SS/RS Join Date: Sep 2010 Location: SOCAL Posts: 2,084 View My Garage	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 ? __________________ SoCal HT5 ENOUGH SAID

04-09-2012, 02:48 PM	#13
ajp 50th Anniversary Vert Drives: Camaro 2017 50th Anniversary Join Date: Jul 2009 Location: AZ Posts: 2,315 View My Garage	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. __________________

04-10-2012, 06:36 AM	#14
DJ_BigC Rockin' Steady Drives: 2010 Camaro 2SS Join Date: Apr 2012 Location: Timmins Posts: 216	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. __________________ Eric Carrier, proud GM Technician for over 10yrs. 2010 Camaro 2SS Black, L99, SLP headers, GMPP axle back, complete JRE tune, 22" Boss 337's, Nitto Invos 5% tint, Eforce Supercharger w. 3" pulley, ADM FPCM, ID850's, JRE fuel rail mod, Eforce CAI, Moroso catch can, spark plug insulators.

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