Dec 21, 2016 - We have a 2016 F150, 3 months old, with 6100 Kms on it. Engine is 2.7 EcoBoost, V6. Yesterday morning the truck would not start. The message displayed was "Engine Coolant Overtemperature". This was first thing in the morning in a temperature below freezing (in Ontario Canada in the winter) and the truck had been parked all night. The temperature indicator on the coolant icon is to the far left - ie. coldest. The coolant is at the proper level, neither low nor high. It's the coolant that existed in the truck when we bought it. We plugged in the block heater for an hour. After that I was able to start the truck 3 times and each time the "Overtemperature" message displayed. In between those 3 times it started, there were many attempts where it did not start. It cranks but doesn't turn over. How can the system think the coolant is "overtemperature" on a truck that hasn't been driven for 12 hours in weather that is below freezing? We are in the Toronto Canada area,and there a lots of 150's driving around here. There is nothing that would make it overtemperature in those circumstances.

Dec 23, 2016 - Towed to dealer. Almost new truck is NOT DRIVEABLE. Bummer

Dec 27, 2016 - Dealer advised problem was a faulter coolant sensor. About a week to get the part in.

Jan 10, 2016 - STILL no part and it's going on 3 weeks since the problem arose. Dealer says all they know is the part is "somewhere in North America", but they have no idea where or when they'll receive it. We have a rental pickup provided by Ford in the meantime.

Can't believe it's taking this long to get a part. What's up Ford? Never had such a bad experience before with an almost new vehicle.