temp guage null zone?

[sportbiker929]

Has it occured to anyone that Toyota has built in the null zone into the temp guage to cover the normal operating temp of our engines?

Like in aircraft, there is a guage that has a green, yellow, red band in the range. Our trucks have no chance of falling out of the sky and that worring about the temp too much is giving some uneasy nerves for no reason.

if the cooling system is properly maintained these truck should be fine and if the temp gets to the red. Shut it off immediately.

just my thoughts, not trying to cause problems.

Mitch

 

[DaveyBoy]

Has it occured to anyone that Toyota has built in the null zone into the temp guage to cover the normal operating temp of our engines?
Like in aircraft, there is a guage that has a green, yellow, red band in the range. Our trucks have no chance of falling out of the sky
and that worring about the temp too much is giving some uneasy nerves for no reason.
if the cooling system is properly maintained these truck should be fine and if the temp gets to the red. Shut it off immediately.
just my thoughts, not trying to cause problems.
Mitch

While I agree that the guage reading might be "good enough",
I think that all the tricks and fixes around here
(temp gauge mod, fan clutch mod, etc)
give someone more accurate temp info to
read the whole system better and with more warning.
(ie: fan clutch going, HG gone, etc)


I definitely plan on doing both mods at some point.

 

[landtank]

I definitely plan on doing both mods at some point.

I know someone locally with extra resistors and would let them go for free. If you get the idea to do both mods let me know. A drive up here and an hour later you would be done.

 

[landtank]

I've stated this before and I believe the gauge numbness and fan clutch combo was to help with CAFE regs here in the states. At one point temp gauges were reasonably accurate and then the whole industry went numb.

With weather at the most extreme we have had in some time my truck now maintains correct temps all the time. This is just how I think it shpould be.

 

[DaveyBoy]

I know someone locally with extra resistors and would let them go for free. If you get the idea to do both mods let me know. A drive up here and an hour later you would be done.

I will take you up on that sooner than later.
Thanks for the offer, Rick.

 

[cruiserman]

I tend to think the zener was added to keep drivers from freaking out.

 

[cary]

I tend to think the zener was added to keep drivers from freaking out.

That was exactly the reason. People used to freak when the gauge move, would say that their friends didn't or ran cooler, and manufactures got tired of it. The result, we now have dumb gauges.

 

[sportbiker929]

That was exactly the reason. People used to freak when the gauge move, would say that their friends didn't or ran cooler, and manufactures got tired of it. The result, we now have dumb gauges.

makes sense

 

[landtank]

My 1967 Cougar didn't have a zener and the gauge didn't move.

 

[cary]

My 1967 Cougar didn't have a zener and the gauge didn't move.

Of course it didn't, it wasn't connected. Didn't you ever wonder why it sat on the C the entire time you owned the car.

 

[Jason Andrews]

Has it occured to anyone that Toyota has built in the null zone into the temp guage to cover the normal operating temp of our engines?

if the cooling system is properly maintained these truck should be fine and if the temp gets to the red. Shut it off immediately.

just my thoughts, not trying to cause problems.

Mitch

Yes, but most would agree that null zones and aluminum heads don't mix!