Can anyone tell me a good way to check the accuracy of a engine temp guage. Mine doesn't work very well, it hangs dead south at baseline, and doesn't go over 180 at anytime. When the car theoretically should be warmed up, the needle points to about 120 - 140. That can't be right, I don't think.

I have another post about one of my two fans running all the time, but I doubt that would keep the car running only 140. So I'm guessing the guage is bad or off.

What's everyone's opinion here?

 

Pull the sender out of the engine and place it in a container with water and a thermometer.

 

buy an after market water temp gauge and hook it up im talkin one of those cheep ones you get in the chrome bezil and then run the engine and see if the gauges are reading the same temp if they are your gauge is right if not then ur gauge is bad that what did when i had the same problem.