I have a 2001 TC30 i bought a couple years ago. 5 minutes after i start it and let it idle it gets hot. Radiator doesn't bubble when temp is high. I have been using it and tractor does fine, no loss of power or white smoke. However this has been bothering me so i have put in a new OEM temp sensor , checked thermostat...still have same issue!. I pulled off wire at sensor and grounded it and gauge goes to hot immediately. I am at a loss and don't know if gauge is bad like the guy i bought it from said it was. Any help would be appreciated.