Why is my Ford Focus making a knocking noise while driving?

I recently purchased a used Ford Focus and noticed that it makes a knocking noise whenever I'm driving at low speeds. What could be causing this and how can I fix it?

It's possible that your engine is misfiring, which can cause a knocking noise. I suggest taking your car to a mechanic for a diagnostic test to pinpoint the issue.

Check your transmission fluid levels, low levels can also cause knocking noises while driving. You can easily top off the fluid yourself if needed.

Another potential cause could be worn out suspension components, such as struts or control arms. Have a mechanic inspect these parts for any signs of wear and tear.