Here's a Strange One.... [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Here's a Strange One....


TheMonkey
04-25-2005, 07:43 PM
i just noticed that my truck in my sig has an engine temp gauge that is labeled with 3 temps. 160 - 210 - 260 and they are evenly spaced apart.

so why is this strange?

my previous sled for 5 years was a 2000 tahoe z71 classic body style. the engine temp gauge looked identical, but had 3 labels in the same evenly spaced places reading 100 - 210 - 260. i have *always* figured that the signal sent from the sensor had a 'curve' to it, such that the needle moved the same distance for the first 110 degrees as it did for the next 50. so, i interpolated a guess as to what the dashes between each label might have meant, but i did not know the curve, so it was always a guess. i did think it was strange, but figured there was no way it is mislabeled.

is it *possible* that they screwed up and mis-labeled the 160 as 100? i still have the tahoe in the garage and looked again. any guesses? or... any certain knowledge?

StraitDiesel
04-25-2005, 08:48 PM
I think they screwed up putting 160 on there instead of 100, because when my attitude says around 130 the truck guage needle is coming off of 160, which doesn't make any sense.

Dan

TheMonkey
04-25-2005, 09:18 PM
I think they screwed up putting 160 on there instead of 100, because when my attitude says around 130 the truck guage needle is coming off of 160, which doesn't make any sense.

Dan
funny you say that...

i just went out for a spin and changed one of my attitude readings to engine temp. i noticed the same thing. it started to creep over 160 when the attitude was reading low hundreds.

hmmmm.

D/A Power
04-25-2005, 09:27 PM
I think they screwed up putting 160 on there instead of 100, because when my attitude says around 130 the truck guage needle is coming off of 160, which doesn't make any sense.

Dan
Same here - Sometimes after having her plugged in overnight, the edge would read 125 - 130 while the factory gage is coming off 160!:confused:

I once had a service guy tell me that the gages were not linear and they did have a curve to them. I thought he was full of crap and my D'max only seemed to reinforce that until now.:eek:

ssduramax
04-25-2005, 11:10 PM
Monkey, you are always thinkin
this is pretty interesting, you never know about those bean counters, the zero on the 100 vs 160 might have been wearing out and they found an extra 6 in a box, decided that they would use it and nobody would notice. what do you think?

StraitDiesel
04-26-2005, 12:23 AM
I always have the engine temp as one of my attitude displays... I never rely on the factory temp gauge, which always seems to be way off, especially in the summer when the attitude will read 192 or so and the truck gauge is dead nuts on 210... that's a big difference!

Dan