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Temperature gauges

 
Old 04-15-2019, 06:51 PM
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jrdestar
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Default Temperature gauges

Hi, Can I get some thoughts on this, it is my 2014 and the gauges read two different Temps is one more accurate than the other? I also noticed that after installing a front license plate the Temps have gone up.Thanks John
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Old 04-15-2019, 06:57 PM
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One is oil temp, the other is water temp.
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Old 04-15-2019, 06:57 PM
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One is your coolant temp (right picture) The other is your oil temp (left picture)



Originally Posted by jrdestar View Post
Hi, Can I get some thoughts on this, it is my 2014 and the gauges read two different Temps is one more accurate than the other? I also noticed that after installing a front license plate the Temps have gone up.Thanks John
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Old 04-15-2019, 06:57 PM
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One is oil one is coolant?
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Old 04-15-2019, 07:13 PM
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Yes, look at the difference in the icons.

The left one depicts an oil can; the right, waves.

Last edited by Elk; 04-15-2019 at 07:14 PM.
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Old 04-15-2019, 07:23 PM
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I thought the one on the left was a Genie lamp and the one on the right was the Titanic . . . . .

MrHix

Last edited by MrHix; 04-15-2019 at 07:23 PM.
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Old 04-15-2019, 07:23 PM
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The aero panel license plate blocks half of the air flow to the radiator. If you watch NASCAR at all, it's like when they add tape to the front grille to decrease drag at the expense of higher engine temps.

Last edited by Kracka; 04-15-2019 at 07:24 PM.
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Old 04-15-2019, 08:25 PM
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What the Frick how did I miss that. I guess I should have put my reading glasses on. Thank you for the answer.
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Old 04-15-2019, 09:09 PM
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Hey, mistakes happen. At least you now know the reason for the different readings.
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Old 04-15-2019, 09:39 PM
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Originally Posted by Vetteman Jack View Post
Hey, mistakes happen. At least you now know the reason for the different readings.
That is true, I'm still alittle concerned about the water temp.
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Old 04-15-2019, 10:01 PM
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Originally Posted by jrdestar View Post
That is true, I'm still alittle concerned about the water temp.
220F on that gauge is perfectly normal. That gauge isn't a true gauge at all actually and is no where near accurate.
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Old 04-15-2019, 10:40 PM
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Originally Posted by jrdestar View Post
That is true, I'm still alittle concerned about the water temp.
Not sure why you are concerned about the coolant temp. It is right where it should be. To see accurate gauge readings put your Instrument Panel in Tour Mode so the gauges show up in digital format to the right of the digital speedo. The analog gauges in your pictures are based on voltage signals that are converted from the digital words passed from the ECM to the Instrument Panel. The digital displays require no conversion from digital to analog thus no loss of accuracy.

Bill
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Old 04-16-2019, 10:20 AM
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Originally Posted by Kracka View Post
220F on that gauge is perfectly normal. That gauge isn't a true gauge at all actually and is no where near accurate.
And WHY is that and how do you know it isn't a "true gauge"?
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Old 04-16-2019, 10:48 AM
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Originally Posted by CP View Post
And WHY is that and how do you know it isn't a "true gauge"?
Well, what we DO know for a fact is that '14 MY analog temp gauge is nowhere near accurate (mine sure wasn't) nor even much more than a fixed 220 degree display

Last edited by KenHorse; 04-16-2019 at 10:49 AM.
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Old 04-16-2019, 11:06 AM
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Someone had previously posted that on the 2014 C7 (Base? Z51? both?), the big coolant temperature gauge on the panel is actually a glorified idiot light. When the coolant temp reaches "normal range", the gauge goes to some "normal number" and stays there unless the temp get unusually hot or unusually cool, then it moves to a significantly higher or lower number that is still not accurate but does tell you something is wrong. Supposedly, this dumb idea was corrected for MY 2015. I can't verify if this story is correct, can someone else?

On our 2017 Z51, the temperatures are true analog, the gauges show small variations in temperature.
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Old 04-16-2019, 11:22 AM
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Originally Posted by Gearhead Jim View Post
Someone had previously posted that on the 2014 C7 (Base? Z51? both?), the big coolant temperature gauge on the panel is actually a glorified idiot light. When the coolant temp reaches "normal range", the gauge goes to some "normal number" and stays there unless the temp get unusually hot or unusually cool, then it moves to a significantly higher or lower number that is still not accurate but does tell you something is wrong. Supposedly, this dumb idea was corrected for MY 2015. I can't verify if this story is correct, can someone else?

On our 2017 Z51, the temperatures are true analog, the gauges show small variations in temperature.
My '14's Z51 analog never moved off 220 (once it arrived there after warming up). The digital gauge might show 180 but the analog showed 220. The digital gauge might show 218 (the warmest I ever saw it) but the analog showed 220.

My '19 GS is different in that the analog gauge does seem to more accurately agree with the digital one
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Old 04-16-2019, 12:03 PM
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Originally Posted by Bill Dearborn View Post
Not sure why you are concerned about the coolant temp. It is right where it should be. To see accurate gauge readings put your Instrument Panel in Tour Mode so the gauges show up in digital format to the right of the digital speedo. The analog gauges in your pictures are based on voltage signals that are converted from the digital words passed from the ECM to the Instrument Panel. The digital displays require no conversion from digital to analog thus no loss of accuracy.

Bill
You were correct sir the analog gauge hit 220 before the digital gauge hit 165, the pic shows where it settled at. Thanks again.
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Old 04-16-2019, 12:42 PM
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Originally Posted by Gearhead Jim View Post
Someone had previously posted that on the 2014 C7 (Base? Z51? both?), the big coolant temperature gauge on the panel is actually a glorified idiot light. When the coolant temp reaches "normal range", the gauge goes to some "normal number" and stays there unless the temp get unusually hot or unusually cool, then it moves to a significantly higher or lower number that is still not accurate but does tell you something is wrong. Supposedly, this dumb idea was corrected for MY 2015. I can't verify if this story is correct, can someone else?
Correct. Here is the thread where I started to figure this out: https://www.corvetteforum.com/forums...temp-high.html

On the 2014 the analog gauge and the digital gauge will read different. The digital one is the accurate.
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