Temp Gauge Not showing high temps - TerrainForum.net: GMC Terrain Forum
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post #1 of 18 (permalink) Old 05-18-2019, 03:38 PM Thread Starter
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Temp Gauge Not showing high temps

This may or may not be an issue on my 2012 Equinox, 2.4l, but engine temp gauge will rise normally to operating temps, and stop at the 7 o'clock position. It does not change from that point (175F to 225F). I would think it would at least move to the 6 o'clock position when it reaches 210F. I have an Ultra Gauge and it reads what the ECM is reporting from the coolant sensor.

Is this a normal reading? Anyone else see their gauge read higher in hot, stop and go traffic. I blew a head gasket on my chevy van in the past because the temp gauge acted in a similar manner, did not report high coolant temps.
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post #2 of 18 (permalink) Old 05-18-2019, 07:37 PM
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Originally Posted by sydnesb View Post
This may or may not be an issue on my 2012 Equinox, 2.4l, but engine temp gauge will rise normally to operating temps, and stop at the 7 o'clock position. It does not change from that point (175F to 225F). I would think it would at least move to the 6 o'clock position when it reaches 210F. I have an Ultra Gauge and it reads what the ECM is reporting from the coolant sensor.



Is this a normal reading? Anyone else see their gauge read higher in hot, stop and go traffic. I blew a head gasket on my chevy van in the past because the temp gauge acted in a similar manner, did not report high coolant temps.


most all 2nd gen equinox and terrains the temp gauge will run at about the 630 position. my 2015 was this way and so is my fiancé’s 2010. not sure why gm does this but my 2018 also doesn’t reach the middle when at normal temp


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post #3 of 18 (permalink) Old 05-18-2019, 11:08 PM Thread Starter
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I am tempted to disconnect the cooling fan and see how hot it will get before the gauge moves. At 225F it should be beyond the mid range.

Thanks for the confirmation.
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post #4 of 18 (permalink) Old 05-19-2019, 03:57 AM
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My 2016 SLT has been showing around 7:00 Position and No Higher since got it read it on my Temp Gun at the Thermostat at 195-200 so figure it's fine like that .. My Buick Verano 2.4L reads at 6:00 Dead On or the 185 mark and No Higher ..

2016 GMC Terrain SLT 3.6
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post #5 of 18 (permalink) Old 05-19-2019, 07:14 AM
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Help me out - I'm having trouble relating a clock to my temperature gauge !

2018 Equinox LT1 1.5 L 4 cyl, AWD, S/R Cajun Red Tintcoat/Black

2010 Equinox LTZ 2.4 L 4 cyl, FWD, S/R Cardinal Red/Black
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post #6 of 18 (permalink) Old 05-19-2019, 09:14 AM Thread Starter
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Photos of the ECM temp and the gauge on the dash.
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File Type: jpg 20190319_141937.jpg (1.07 MB, 14 views)
File Type: jpg 20190319_141907.jpg (699.7 KB, 13 views)
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post #7 of 18 (permalink) Old 05-19-2019, 09:33 AM
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My 2011's Equinox temp gauge goes to the 7pm position when hot and has never varied by more than half the width of the pointer even in hot weather, stop-and-go traffic, etc.

What you are seeing is normal.

Regards,
John
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post #8 of 18 (permalink) Old 05-19-2019, 10:08 AM
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Agree with Jws555. Mine is, and always has been, the same: 7 o’clock. And I’ve never seen it go past that point.

But I started to wonder why the darn scale doesn’t show numbers at either end - like my 2002 Impala does ... so you know what the temperature actually is?

Well - look in the Owner’s Manual, right?

Wrong! See attached picture. Pretty useless

Also - I’m surprised this engine runs at 221 F? I would’ve guessed 190-ish at most.
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File Type: jpg A7AAE18A-D55D-4917-8543-3B051E3170A7_1558274842334.jpg (344.6 KB, 11 views)

2011 Equinox 1LT (new Jan 2011): Summit White / 3.0 L V6 / FWD / Pioneer Stereo / 18" Wheels / 131.6k miles [14-JUN-2019]

2002 Impala 1LT (new Jun 2002): Summit White / 3.4 L V6 / FWD / Cassette-CD Combo /222.5k miles [13-JUN-2019]

Last edited by Colt Hero; 05-19-2019 at 10:11 AM.
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post #9 of 18 (permalink) Old 05-19-2019, 10:35 AM Thread Starter
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It was idling, wanted to see when the high speed fan would turn on and what the gauge would show. In the city it is 185-195F, highway is 180-190F. Fan turns on at 220-225F. The Ultra Gauge has been helpful in diagnosing problems and monitoring the engine vitals and transmission temps. Cost about $90
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post #10 of 18 (permalink) Old 05-19-2019, 11:16 AM
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My bad, I was thinking that the needle swung from the bottom forgot that it's swung from the top.

2018 Equinox LT1 1.5 L 4 cyl, AWD, S/R Cajun Red Tintcoat/Black

2010 Equinox LTZ 2.4 L 4 cyl, FWD, S/R Cardinal Red/Black
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