Why is my Ford Focus Misfiring?

I have a 2012 Ford Focus and recently it has been misfiring when I start it up. It makes a weird noise and doesn't drive smoothly. What could be causing this issue?

Hi Samantha, your misfire could be caused by a few different things. It could be an issue with the ignition system, like faulty spark plugs or wires. It could also be a clogged fuel filter or a problem with the fuel injectors. I would recommend taking it to a mechanic for a diagnosis.

My Ford Focus was doing the same thing and it turned out to be a problem with the catalytic converter. You may want to have that checked out as well.

I had a similar issue with my Ford Focus and it turned out to be a faulty oxygen sensor. That's an easy and relatively inexpensive fix.