AC OFF DUE TO HIGH ENGINE TEMP --- WTF ?? SOMEONE ANSWER THIS - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

thespymaster · 06-07-2010, 09:06 PM

Car is back and running fine...

Heres the jist of what the service tech explained:

Having shown him the video from the car cam, he said at time of start-up my hood was up and forced HOT AIR into the CAI and trip the sensor thinking it was overheating.....

Secondly, he showed me all the CODES the report generated and it was detailed.

The computer is so sensitive it knows if you changed a light bulb for the license plate.

And thier were enough changes I did to the car, it had about 24 codes he showed me. Changes from the light bulb for license plate, to the METRA KIT, to CAI, etc...

orange10s.c. · 06-07-2010, 09:10 PM

quit changing s**t !!! LOL

TC · 06-08-2010, 03:54 PM

So it was a simple reboot. I might try just disconnecting the battery before I go waste time at the dealer.

Darth_Emma · 06-08-2010, 04:43 PM

Quote:

Originally Posted by orange10s.c.

quit changing s**t !!! LOL

Gary:
That kind of advice is bad for business!

With all the changes to that car, I'm surprised the dealer didn't say "can't touch dis."

nunya · 02-24-2016, 09:15 AM

I have this same issue A/C Off Due To High Engine Heat. The car has been in the shop three times. No one can figure it out. The first trip to the shop radiator was replaced a long with the thermostat. Second trip thermostat and sensor. Third trip yesterday they changed the antifreeze and flushed the system. Now they want to replace the water pump along with the thermostat and sensor again. Both fans work and every time this pops up the car is not over heated. Why does GM pretend they have never heard of this issue and why do the dealerships not know how to fix it? There are thousands of complains on line. Oh yeah the ECM has been rebooted numerous times.

HyperV117 · 02-24-2016, 10:29 AM

Man that sounds like a nightmare problem. Hope someone chimes in with help.

Batmanntexas · 02-24-2016, 10:34 AM

I have had that code pop on my car several times, P0116 (ECT Circuit Range/Performance), and every time it popped, I got the "A/C off due to high engine temp" as well as both the water and oil temp gauges would "zero" out. I also run scan gauge, so I knew my car wasn't running hot.

I went and bought a new ECT sensor, thinking mine was faulty, and replaced it. It did not solve the problem. Come to find out, it was the 160* thermostat that I installed, when I installed the Whipple, that was triggering the fault code. The ECM is looking for an ECT in the 195-210* range, and when it doesn't see it, it usually triggers the P0116 code.

My final solution was using HP tuners to disable fault code P0116. There are at least two other codes that monitor ECT, so I'm not the least bit concerned that I disabled that particular code.

Rcheli4fun · 10-21-2018, 05:14 PM

I have had this happen on my Tahoe and impala it is the thermostat sticking and not coming up to temp as the computer thinks is should as a result the computer turns off A/C disables temp gauges and turns on radiator coolant fans

Both cases the rubber seal on the thermostat was coming apart replaced and no more problems I think the code i had was P0128

WoodBoss · 10-25-2018, 01:10 PM

I have this issue as well when running with my 160* thermostat when the temp is below 35* out. It triggers because the coolant takes too long to come up to temp. if I reflash my tune everything is fine for a while and my temp sensor reads out again like normal.

06-07-2010, 09:06 PM	#15
thespymaster Drives: C7 / ZL1 / SS / trucsk Join Date: Nov 2009 Location: G4 CLASSIFIED Posts: 4,533 View My Garage	Car is back and running fine... Heres the jist of what the service tech explained: Having shown him the video from the car cam, he said at time of start-up my hood was up and forced HOT AIR into the CAI and trip the sensor thinking it was overheating..... Secondly, he showed me all the CODES the report generated and it was detailed. The computer is so sensitive it knows if you changed a light bulb for the license plate. And thier were enough changes I did to the car, it had about 24 codes he showed me. Changes from the light bulb for license plate, to the METRA KIT, to CAI, etc... __________________ 2014 C7 Stingray 3LT/Z51 2013 Camaro SS 2012 Camaro ZL1 - 850 HP 2015 GMC Denali 3500HD 4x4 2012 GMC Sierra 3500HD 4x4

02-24-2016, 10:29 AM	#20
HyperV117 Drives: 2010 Camaro 1SS Join Date: Nov 2015 Location: CA Posts: 358	Man that sounds like a nightmare problem. Hope someone chimes in with help. __________________

02-24-2016, 10:34 AM	#21
Batmanntexas Drives: 2012 Camaro SS (2SS) Join Date: Aug 2012 Location: Stafford, VA Posts: 1,372 View My Garage	I have had that code pop on my car several times, P0116 (ECT Circuit Range/Performance), and every time it popped, I got the "A/C off due to high engine temp" as well as both the water and oil temp gauges would "zero" out. I also run scan gauge, so I knew my car wasn't running hot. I went and bought a new ECT sensor, thinking mine was faulty, and replaced it. It did not solve the problem. Come to find out, it was the 160* thermostat that I installed, when I installed the Whipple, that was triggering the fault code. The ECM is looking for an ECT in the 195-210* range, and when it doesn't see it, it usually triggers the P0116 code. My final solution was using HP tuners to disable fault code P0116. There are at least two other codes that monitor ECT, so I'm not the least bit concerned that I disabled that particular code. __________________ 745RWHP/634RWTQ on 93 @ 10psi 806/676 on E85 @ 10psi COTW 9/8/14 Last edited by Batmanntexas; 02-24-2016 at 10:46 AM.

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06-07-2010, 09:10 PM	#16
orange10s.c. Drives: IOM 2SS RS M6 sunroof Join Date: Jul 2009 Location: panama city fl Posts: 5,117 View My Garage	quit changing s**t !!! LOL

06-08-2010, 03:54 PM	#17
TC Drives: 2010 VR 2SS-RS Join Date: Dec 2008 Location: Michigan Posts: 367 View My Garage	So it was a simple reboot. I might try just disconnecting the battery before I go waste time at the dealer.

02-24-2016, 09:15 AM	#19
nunya Drives: Silver Join Date: Dec 2015 Location: earth Posts: 1	I have this same issue A/C Off Due To High Engine Heat. The car has been in the shop three times. No one can figure it out. The first trip to the shop radiator was replaced a long with the thermostat. Second trip thermostat and sensor. Third trip yesterday they changed the antifreeze and flushed the system. Now they want to replace the water pump along with the thermostat and sensor again. Both fans work and every time this pops up the car is not over heated. Why does GM pretend they have never heard of this issue and why do the dealerships not know how to fix it? There are thousands of complains on line. Oh yeah the ECM has been rebooted numerous times.

10-21-2018, 05:14 PM	#22
Rcheli4fun Drives: 2011 camaro 2SS RS Join Date: Apr 2014 Location: Iowa Posts: 75	I have had this happen on my Tahoe and impala it is the thermostat sticking and not coming up to temp as the computer thinks is should as a result the computer turns off A/C disables temp gauges and turns on radiator coolant fans Both cases the rubber seal on the thermostat was coming apart replaced and no more problems I think the code i had was P0128

10-25-2018, 01:10 PM	#23
WoodBoss "Old School" Drives: 2010 2SS L99 Join Date: Apr 2015 Location: Sherrills Ford, NC Posts: 1,295	I have this issue as well when running with my 160* thermostat when the temp is below 35* out. It triggers because the coolant takes too long to come up to temp. if I reflash my tune everything is fine for a while and my temp sensor reads out again like normal.