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Losing power in my 2016 Ford Everest

I was driving my 2016 Ford Everest 3.2 Limited, fully loaded on an extremely hot day climbing a long steep hill. The car lost power and was reading 2500rpm at 80km/h and not changing gear up or down. Safe mode, I presume. After about a 10-minute rest, all was normal until overtaking a truck, when it happened again. Rested again and crept home at 80km/h. No more problems on the trip.

The temperature stayed normal after the first incident when it had climbed a bit, but quickly back to normal on the downhill. Could this be caused by a combination of heat, load, climbing and traveling between 100-120 km/h, or some other problem?

It sounds like your diagnosis that the vehicle went into Safe or limp-home mode is spot on. Being fully loaded and travelling at speed up a long hill on a super-hot day could certainly be enough to make the car enter limp-home mode for its own preservation. This is confirmed by the fact that after a break and downhill run, the temperature stabilised and the car came back to full functionality.

Modern turbo-diesel engines make lots of power and torque these days, but they do that by burning fuel and that creates heat. You might also find that the limp-home mode initiation was at the behest of the transmission which would also be damaged if it got too hot.

Car-makers have designed these limp-home modes to protect the vehicle from permanent damage in severe operating conditions, and in your car, it seems to have done its job perfectly. The only unknown is whether the limp-home mode was initiated by the conditions or something actually wrong with the vehicle. It would be wise to have it checked over to make sure the cooling, fuel-injection and transmission systems don’t have a separate problem that is causing the Everest to enter Safe mode.

Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.

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