I was mowing a field last week, pretty dry and tall hayfield. After a couple of hours I noticed the temp gauge was creeping up, but I figured I could make a few more passes without the needle moving to the red zone...finish the section I was doing, then clear the radiator screen.
Well, after a few more passes, the gauge had crept up further but was still well out of the red zone. The "EM" check engine light illuminated. I finished my pass and shut the machine down, cleared all the radiators / coolers, then idled the engine at about 1000RPM. The temp gauge dropped back to normal and I recommenced mowing, but the EM light stayed on for another pass or two before finally going off.
Since when do you get a check engine light for an 'almost' overheat? Only thing I could think of was fuel temp is monitored and when the fuel cooler got plugged up the fuel temp became too hot? Maybe I'm overthinking this. I don't even know if such as sensor exists.
Lastly, and this is the third time this has happened, why is the tractor pouring a steady stream of coolant out of the overflow tank well before the gauge gets to the red zone?
Well, after a few more passes, the gauge had crept up further but was still well out of the red zone. The "EM" check engine light illuminated. I finished my pass and shut the machine down, cleared all the radiators / coolers, then idled the engine at about 1000RPM. The temp gauge dropped back to normal and I recommenced mowing, but the EM light stayed on for another pass or two before finally going off.
Since when do you get a check engine light for an 'almost' overheat? Only thing I could think of was fuel temp is monitored and when the fuel cooler got plugged up the fuel temp became too hot? Maybe I'm overthinking this. I don't even know if such as sensor exists.
Lastly, and this is the third time this has happened, why is the tractor pouring a steady stream of coolant out of the overflow tank well before the gauge gets to the red zone?