One problem related to engine exhaust system 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.
A few months ago, my car started to shake (in a jerking, forward and back motion), and struggle to accelerate. It would make this noise, like gears grinding. I took it to the dealership to get it fixed under warranty, and they replaced the clutch. For about a week, it was fine. Then it started to do the same thing again. It will jerk back and forth when I accelerate from a complete stop (at a stoplight for example). Recently, I have been losing gas very quickly because it will go all the way past 4rpms just to get from 0-20mph. I'm not sure if the warranty is still on it, but it only has 12,000 miles on it. I have only made one very big trip with it, to kansas and back to virginia. It does this off and on every single time I drive it. I have to drive anywhere from 25 minutes to an hour for work, so this is really not convenient to have. Multiple times I was worried it would break down as I struggled to keep it from overdoing itself while accelerating. A few times, I could smell something like exhaust in the vents. This has been happening over the course of 6 months and has only gotten worse, even after taking it to the dealership, and having them tell me it was "fixed. ".