anyone had a problem with HOT light flashing before, or at the same time as the fan comes on? changed temp sensor still the same. possible ECM? part# 4011568
I don't think the engine is getting hot, I think it is a false reading.

 

If the motor was really getting hot you would smell antifreeze steam,usually it boils out the reservoir bottle if the motor over heats. So you may be on the right track.