Has anyone had any deffective temp sensors or something related. Temp light came on last night, I couldnt find any leaks and had plenty of coolant, so I just went home just in case. I let it sit over night and before I went to work I fired it up and it was still on. After work came home and now it isn't on. Rode around the yard after letting it run for 15 mins and it seems fine. Any suggestions?