Operating temp of 2.4l? - EquinoxForum.net: Chevy Equinox Forum
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post #1 of 13 (permalink) Old 06-03-2017, 10:38 AM Thread Starter
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Operating temp of 2.4l?

I have been trying to figure out the normal operating temp for the 2.4l laf 2011.

Looking around for thermostats for my car show that they are all 180 rated. So they open at that temp.
Getting the engine rebuilt, so I may have it replaced.

Last winter, it would take a while to get to that temp.
Initially, the temp would would ​rise quickly. But once it got to about 160 it would take another 10 minutes to get to 180.
So I would take about 15 - 20 minutes to get there depending on how cold.
Attached garage.
Outside temp would range from​ +-20f
This normal?
Obviously, crappy gas mileage until then.
It seems that with​most engines, operating temp is around 200

Jeff from Iowa, Purchased 2011 Nox in Nov. 2016, Manufacture date 10-10, 2.4l, AWD
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post #2 of 13 (permalink) Old 06-07-2017, 11:39 AM Thread Starter
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Re: Operating temp of 2.4l?

Currently the car is in getting the rebuild for oil consumption as I write.
Talked to the service rep who talked to tech.
Said operating temp is 210 - 220.
Told him mine never gets above 180
Said CEL should come on.
Told him it hasn't and that, from what I am finding out here, is that they are not that sensitive.

Going to call me back later.
Plan is to replace the thermostat.
Wondering about the sensor too.

Jeff from Iowa, Purchased 2011 Nox in Nov. 2016, Manufacture date 10-10, 2.4l, AWD
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post #3 of 13 (permalink) Old 06-07-2017, 12:10 PM
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Re: Operating temp of 2.4l?

hi ,

maybe .....

If a DTC is not set
 2. Verify the cooling system is filled to the correct coolant level. Refer to Cooling System Draining and Filling and Loss of Coolant.
⇒ If the coolant level is not correct
Repair as necessary

⇓ If the coolant level is correct
 3. Engine running for 15 min with the A/C OFF, increase the engine speed to 3,000 RPM.
 4. Verify the scan tool ECT Sensor parameter is greater than 79C (174F) when commanding the Engine Coolant Thermostat Heater to 0%.
⇒ If less than 79C (174F)
Replace the Engine Coolant Thermostat.

⇓ If greater than 79C (174F)
 5. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
 6. Verify the DTC does not set.
⇒ If the DTC sets
Refer to Circuit/System Testing.

⇓ If the DTC does not set
 7. All OK.
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post #4 of 13 (permalink) Old 06-07-2017, 12:22 PM
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Re: Operating temp of 2.4l?

most GM engines- are in the '210' range for emissions purposes.
I believe the engine temp needle points at/close to 210.
Gone are the days when the 350's V8 ran at 180--- and folks removed the thermostats to keep engines at 160 ish.


The CEL- P0128- should set if the computer detects that the engine has not reached temp 'x' within a predetermined set time.
if this occurs several times in a row- it will set the CEL.

When I have my scanner plugged into my OBD port and monitor temps- the temps are 19X-200 range depending on traffic and ambient temps.


at 100,000 miles I changed out the hoses and thermostat in my V6 Traverse. The thermostat was working fine. But I was changing out the coolant due to age. So replaced the other parts while coolant was out.
the thermostat shows 82C/95C which converts to 182-203 F.

this is for the 3.6 V6 in my Traverse... but pics are always interesting.











2013 Equinox&nbsp; LT1 3.6L V6 FWD -&nbsp; &nbsp;60,000<br />2010 Traverse LT1 3.6L V6 FWD -&nbsp;127,000 <br />2003 Trailblazer LS&nbsp; 4.2L I6 RWD- 180,000
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post #5 of 13 (permalink) Old 06-07-2017, 12:44 PM
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Re: Operating temp of 2.4l?

Looked up a thermostat for the 2011 4 cyl.. and it does shows 82c.


2013 Equinox&nbsp; LT1 3.6L V6 FWD -&nbsp; &nbsp;60,000<br />2010 Traverse LT1 3.6L V6 FWD -&nbsp;127,000 <br />2003 Trailblazer LS&nbsp; 4.2L I6 RWD- 180,000
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post #6 of 13 (permalink) Old 06-07-2017, 02:01 PM Thread Starter
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Re: Operating temp of 2.4l?

Quote:
Originally Posted by rbarrios
Looked up a thermostat for the 2011 4 cyl.. and it does shows 82c.

Yes, 180 f
That is not operating temp. Just when it starts to open.
Mine is obviously opening around 160 - 170


Might be the sensor too. Hope this fixes it

Jeff from Iowa, Purchased 2011 Nox in Nov. 2016, Manufacture date 10-10, 2.4l, AWD
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post #7 of 13 (permalink) Old 06-08-2017, 11:26 AM
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Re: Operating temp of 2.4l?

Quote:
Originally Posted by New to the Nox
Yes, 180 f
That is not operating temp. Just when it starts to open.
Mine is obviously opening around 160 - 170


Might be the sensor too. Hope this fixes it
If your operating temp seems like it's too low or it takes too long to reach operating temp take a look at your cooling fan(s).
Make sure they are cycling on and off, not always running.
On the V-6 when both fans kick on high, they move some serious air, not sure about the 4 cyl.

Your scanner should give you the coolant temp in real time for you to watch.

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post #8 of 13 (permalink) Old 06-08-2017, 12:03 PM Thread Starter
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Re: Operating temp of 2.4l?

Quote:
Originally Posted by rednox301
If your operating temp seems like it's too low or it takes too long to reach operating temp take a look at your cooling fan(s).
Make sure they are cycling on and off, not always running.
On the V-6 when both fans kick on high, they move some serious air, not sure about the 4 cyl.

Your scanner should give you the coolant temp in real time for you to watch.
Yep.
I was able to watch it. Last winter is what caused me to wonder. I read posts by others about how quickly they warm up.
But wasn't sure.
In 10 minutes, it was at 160 or so. After that, it would take another 10 minutes to get to 180

Jeff from Iowa, Purchased 2011 Nox in Nov. 2016, Manufacture date 10-10, 2.4l, AWD
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post #9 of 13 (permalink) Old 06-09-2017, 10:25 AM Thread Starter
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Re: Operating temp of 2.4l?

Just drove my car home this morning.
What a difference!!!!!!!
Coolant temperature is now between 195 & 205!
That coupled with the complete overhaul, car is running great!
Approximate 27 mpg at 75 mph!
Average 26.4 mpg on the DIC which is usually about 1 mpg short of calculated.
Biggest difference I see is the the mpg while under load. (Going up hills and from stops and at higher speeds)

Jeff from Iowa, Purchased 2011 Nox in Nov. 2016, Manufacture date 10-10, 2.4l, AWD
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post #10 of 13 (permalink) Old 06-09-2017, 11:26 AM
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Re: Operating temp of 2.4l?

so to recap.........

it appears that the coolant temp- warmed up fast enough to not trigger the CEL (P012 for coolant not reaching temp in X time......

BUT--- was indeed overcooling. (that is- thermostat was staying open/stuck open) that it overcooled the engine. ?

2013 Equinox&nbsp; LT1 3.6L V6 FWD -&nbsp; &nbsp;60,000<br />2010 Traverse LT1 3.6L V6 FWD -&nbsp;127,000 <br />2003 Trailblazer LS&nbsp; 4.2L I6 RWD- 180,000
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