Temp Reading Question

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h0tr0d

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Hey guys, I'm a bit concerned that I might be losing gas mileage due to my engine running too cool. The consensus for the nbs crowd is that it should run about 180 or so. What are your readings in your trucks?

Here is a pic of my temp gauge. I have only seen it slightly above the next middle hash mark. This is after the truck has warmed up and it's a 90 degree day here. I'm guessing that this is ~140 give or take a few.

csmq7.jpg

And before you guys rail on me for my 3 core aluminum radiator, the temp reading before the mod was only 1/2 to 1 division above where it is currently.
 

grimm

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Thats right where it should be. That's what mine reads. Most will read out right about there, give or take a notch. But if our gauges were to scale, that would be roughly 155 degrees, which I don't think is right. What ever the case its fine right where it is.
 

BOSS

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Man my NBS hovers around 185-190, what is the difference between these engine platforms that makes them need to run so much cooler?

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h0tr0d

h0tr0d

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Thanks for the reassurance grimm. I'll just keep my eye on it for a while since I just replaced the radiator and maybe pick up a spare thermostat if it starts to worry me too much.

I may get a scangauge soon to see what the computer is reporting, plus I think it'd be a cool thing to have around.
 

crmzendrgone

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I have a 92 and that is where mine sits and I have a 195 Tstat in mine. But I my engine pings like crazy.

truck2.gif
 
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bass1775

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I have a 160 powerstat in mine for 10 plus years and 140k. Runs fine, no problem. I checked it with a scan tool and it's right on the money at 160-165.
 

TheBeast99

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once warmed up and doing normal driving my guage will read ~165F, but the onboard computer will say 90C (194F).
had SpeeDee diag the t-stat and it checked out fine, so whatever. the truck isn't overheating, and the t-stat was replaced when i blew my intake gasket, so i know it's new.
 

TahoeJim

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once warmed up and doing normal driving my guage will read ~165F, but the onboard computer will say 90C (194F).

That's the issue.....the marks on the temp gauges don't reflect reality, they are not accurate by a long shot.

My truck consistently runs at the first mark above the large 1/4 mark. That 1/4 mark should be 155 degrees. Each tick mark above should be 13.75 degrees higher. The mark where my truck normally runs is supposedly 168.75 degrees. Dead wrong. Driving with my Actron scanner in place, it's 192 degrees.

Out of the fuel, oil pressure, voltage and temp gauges...the only 2 which are accurate on my cluster are voltage and oil pressure, as I tested and verified.
 

Danny_Z56

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Here are my gauges....

During the cooler months,my temp gauge will read a tad bit under the 1/4 mark.Most of the time it reads right on the 1/4 mark.

tahoe-gages.jpg
 

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