One problem related to engine grinding noise has been reported for the 2017 Ford Focus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2017 Ford Focus based on all problems reported for the 2017 Focus.
When powertrain is warm and vehicle is accelerating from a stop, there is a loud grinding sound, vehicle shuddering and vibration, and resulting engine hesitation as the transmission shifts from 1st to 2nd and 2nd to 3rd gear. Occasionally at highway speeds (55-65 mph) there is a noticeable vibration and shuddering as the vehicle moves into and out of overdrive gears. I have taken the car to the dealership that sold it to me twice with concern about this problem and the service tech says they are waiting for Ford to recall the faulty components, and that this is a common complaint.