Stock Temp Gauge question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dion · 07-02-2002, 02:04 PM

I'm tring to figure out what my temp is on my stock gauge, like what each line is in degrees, for example, the 1/4 line is 100 degrees, the next line is 150 degrees and the line in the middle of the gauge, is that 200 degrees? I know this is incorrect, I'm just using it as an example. Can somebody give me a breakdown?

**JIMs70GMC** · 07-02-2002, 02:17 PM

All I can offer you short of installing an aftermarket gauge is to base your assumptions on your installed thermostat. On my truck I can watch my stock temp meter fluctuate almost dead center. I have a new temp probe installed with a new 190 deg. thermostat, so for me 190 is approx. in the middle. I know this is not much but there's not much you can do with the stock gauge.

bigvinnie · 07-02-2002, 02:43 PM

each gauge is gonna read a little different.... I used a meat thermometer in the radiator throat when I was dialing in my electric fan... at the 1/4 point, temp is 180...

RipMeyer · 07-02-2002, 05:18 PM

To gauge it correctly you should put an aftermarket gage in to compare. Anything else is just a wild guess. All these old gages can read differently.

07-02-2002, 02:04 PM	#1
dion 72 Cheyenne Join Date: Oct 2001 Location: San Diego Posts: 2,086	Stock Temp Gauge question I'm tring to figure out what my temp is on my stock gauge, like what each line is in degrees, for example, the 1/4 line is 100 degrees, the next line is 150 degrees and the line in the middle of the gauge, is that 200 degrees? I know this is incorrect, I'm just using it as an example. Can somebody give me a breakdown? __________________ Burnout Idle 1972Cheyenne 1966/67Stouts

07-02-2002, 02:17 PM	#2
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	All I can offer you short of installing an aftermarket gauge is to base your assumptions on your installed thermostat. On my truck I can watch my stock temp meter fluctuate almost dead center. I have a new temp probe installed with a new 190 deg. thermostat, so for me 190 is approx. in the middle. I know this is not much but there's not much you can do with the stock gauge. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

07-02-2002, 02:43 PM	#3
bigvinnie Registered User Join Date: Aug 2001 Location: escondido, ca 92026 Posts: 1,222	each gauge is gonna read a little different.... I used a meat thermometer in the radiator throat when I was dialing in my electric fan... at the 1/4 point, temp is 180... __________________ '72 short step, 350, 700R4, tilt, ps, pdb, a/c, lowered coils, etc., other work in progress... San Diego, CA 72 Stepside Project

07-02-2002, 05:18 PM	#4
RipMeyer Registered User Join Date: Oct 2001 Location: Southern New Mexico Posts: 649	To gauge it correctly you should put an aftermarket gage in to compare. Anything else is just a wild guess. All these old gages can read differently.



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