What are some common problems that I might face with my Ford Focus engine?

I just bought a used Ford Focus and I'm worried about potential engine issues. Are there any problems that I should watch out for and how can I prevent them?

One potential problem is overheating. Make sure to regularly check the coolant levels and keep an eye out for any leaks or signs of damage. Also, be sure to change your oil regularly to keep the engine running smoothly.

Another common issue is transmission failure. To prevent this, it's important to have your transmission fluid checked and changed according to the recommended schedule. Additionally, avoid excessive shifting between gears and try to avoid sudden stops or starts while driving.

One final problem to be aware of is ignition coil failure. This can lead to issues with starting your car or misfiring while driving. To prevent this, make sure to have your spark plugs and ignition coils inspected regularly and replaced as needed.