water temp gauge not reading

[Moy]

I just noticed the other day that my water temp gauge was not reading at all, the needle just sits there. I've been wondering if the gauge is broken, if there is something wrong with my thermostat, if I have a bad connection somewhere, etc. Can anyone help me?

BTW, I have done searches on here for this and the results of those searches have, for the most part, been inconclusive.

Thanks for your time
-Chris

 

[AJ'S 88NA]

Check the wire that goes to the sensor on the thermostat housing it was making a bad connection on mine and just squeezed it closed a little.

 

[isnms]

and just in case you're not sure which one it is:

 

[Chaos_Performance]

it may just be the vacuum hose there are two on the top of the top radiator hose inlet into the engine the top line controls it i broke mine when installing my k&n and it doesnt work now no big deal as long as u know where ur car normally runs then ur good.

 

[Moy]

If that's the case I'll just replace the vacuum hose. I might have done that installing my CAI

 

[Poodles]

um, no...

The vacuum hoses go to the BVSV for the evap system, NOTHING to do with the temp sensor...

 

[AJ'S 88NA]

I don't know were vac hoses came in, but no like poodles said, has nothing to do with the temp gauge not reading.

 

[Moy]

Didn't know, sorry. Do I need to replace the gauge or is there a loose/bad connection somewhere or ... ? I don't know anything about the electrical aspects of my engine, but I'm learning as I go and want to learn more. Any insight would be helpful :icon_bigg

Thanks

 

[isnms]

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=BE&P=36

also pg. 41(bottom)-42 to test gauge.

 

[Who]

it doesnt work now no big deal as long as u know where ur car normally runs then ur good.

Does that same rule apply to a gas guage that doesn't work?

In my humble opinion if you could do without a gauge in the 7m it would not be the temp guage

 

[Moy]

I think I found the problem. There is a a wire disconnected from a (brown I think) clip that's attached to the therm. I'll try to get a picture of what I'm talking about up later for clarification