What are the most common issues with the Ford Focus transmission?

I have been experiencing some problems with my Ford Focus transmission lately. Sometimes it shifts rough and other times it won't shift at all. What could be causing these issues and how can I fix them?

It sounds like your transmission may be low on fluid. Check the fluid level and add more if necessary.

Another possible cause could be a faulty solenoid. Have a professional mechanic check it and replace it if needed.

It's also a good idea to have your transmission fluid and filter changed regularly to prevent any issues.