One problem related to engine head gasket failure has been reported for the 2013 Ford Focus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Ford Focus based on all problems reported for the 2013 Focus.
While at a stop light on a busy street my car jerks and then gets quiet, when the light changes to green I hit on the gas pedal and the car does not move, no matter how hard I press, I turn on my emergency lights and after about 3 mins the car finally moves but while driving once again I hit on the gas pedal to increase speed and it does not work, I decide to turn around in a small parking lot and take it home and while doing that the car doesn't reverse, I get it back on the road and it jerks and jumps to the point where I just had to park it and call a ride. The week prior a mechanic told me I just needed coolant after the car jerked and stalled on the highway while I was going 70mph, and now every time I bring the car to a complete stop it doesn't move once it's time to accelerate, I've had it stall in heavy traffic where cars where bumper to bumper and I could not move. All of this after I had the ecu flashed to fix the codes, the entire engine and head gaskets replaced, the fuel pump system and transmission fixed by Ford. So I took it to a mechanic to get it diagnosed and they inform me of multiple problems such as a new thermostat and air bag deployment issues but the main problem is that I need a new transmission again, unfortunately the cars value is not worth what it will cost to fix the transmission again.