What are the most common engine problems in the Ford Focus?

I've been experiencing some issues with my Ford Focus engine lately. It's been rattling and making strange noises. I've also noticed a decrease in performance. What could be causing these problems and what can I do to fix them?

From my personal experience with Ford Focus models, the most common engine problems are related to the ignition coils and spark plugs. These components are known to wear out quickly and can cause your engine to misfire and make unusual noises. I recommend getting them checked and replaced if necessary.

Another potential issue could be a clogged fuel filter. This can lead to a decrease in performance and cause your engine to shake and make odd sounds. I suggest getting your fuel filter replaced regularly to avoid any problems.

In some cases, the issue could be with the engine control module (ECM). This is responsible for controlling and monitoring various engine functions. If it malfunctions, it can cause various issues with your engine. I recommend taking your car to a trusted mechanic for a diagnostic test.