Temperature gauge stop working

[marymoon]

Hi, my 2009 Chev Aveo5 176K miles temperate gauge stop working, idk why. I got in the hwy, 22 miles straight, the needles dropped to Botton and its there... help

[Eg.h2o]

possible remedy.

[EAD15]

I had that happen to me. In my case, I pulled a pending code that pointed to the thermostat being stuck open. Regardless, it's either the sender as Eg mentioned, or the thermostat got stuck and set a code.

I can say from experience it's just easier to replace the thermostat/sender assembly as a unit on the 09 models (that's how the thermostat is usually sold, anyway). I had to replace my thermostat and decided to see if I could keep the sensor but it was thoroughly stuck. Ended up destroying it just trying to get it out.
https://www.rockauto.com/en/moreinfo...t=2200&jsn=965

[Eg.h2o]

Agreed. I’d change the whole unit now that I think about it.