My temperature gauge seems to be busted. Does anyone know if there's a way to repair them without replacing them entirely?

 

What do you mean busted? As in not working? If that is the case I would just replace it because who knows what is wrong. The only thing it could be is a wire somewhere may be broken but it they are good the guage is bad.

 

It doesn't work. I was kind of hoping I could resolder something or replace a resistor or something and have it work again.

 

well you can allways check it for resitance. but they measure temp through resistance if i remember right so resistor= bad idea..