How do I troubleshoot a faulty engine in my Vauxhall Insignia?

My Vauxhall Insignia's engine is making strange noises and is not performing well. I am not sure what could be causing this issue. Can someone help me troubleshoot and fix the problem?

Hi Miguel, it sounds like your engine may be experiencing a mechanical issue. I suggest taking it to a certified mechanic to have it diagnosed and repaired.

Miguel, have you changed the oil and checked the spark plugs recently? These could be potential causes for your engine troubles.

Sometimes, a faulty fuel pump can also cause engine problems in Vauxhall Insignia. It's worth checking this component as well.