One problem related to engine funny noise has been reported for the 2012 Ford Focus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Ford Focus based on all problems reported for the 2012 Focus.
We have a 2012 Focus. From day 1, we have had problems with the battery going dead, within just a day. We have had it in numerous dealerships, with no resolve of the problem. After having had enough, we took it to a specialist who hooked it up to a diagnostic machine. The problem was the stereo system draining the battery. But we felt it wasn't our responsibility to have to pay for a new stereo, so we just had it disconnected. Fixed the problem. But the check engine light never goes off. And now it's making a funny noise in the engine and when you come to a stop and accelerate, it sometimes acts like it wants to cut off. I feel like Ford ought to replace the stereo free. We have had it in on other numerous occasions for other problems too. Had to have a new dash twice!.