I just took my 19 Ecoboost to the shop after it threw a light and my temp sensor was going off. I pulled over when safe mode turned on and the motor was not hot. I could put my hand on it and leave it on there. I took it in and they said nothing was wrong with it. I brought it home and put Forscan on it and it gave me 9 codes. I started noticing coolant missing from the radiator but there was no smoke. No water in the oil no oil in the radiator. Yet I put a gallon of coolant back in the next morning. I took it to another deale because I thought the battery was bad. They confirmed it was and took it back to change it where it died and hydro locked. 99% sure it's a blown head gasket. It's all stock and has not been drivin hard at all. I read that focus with this same motor have been having this issue for years. Coincidence? I don't think so.