Why is my Vauxhall Vivaro experiencing engine misfires?

I have a 2010 Vauxhall Vivaro that I use for deliveries. Recently, I noticed that the engine is misfiring frequently and I have also seen a decrease in fuel efficiency. What could be causing this issue?

Hi Dave, engine misfires can be caused by a few different factors. One possibility is that the spark plugs need to be replaced. It is recommended to replace them every 30,000 miles. Another potential cause could be a clogged fuel filter, which can lead to poor fuel flow. I would recommend checking both of these components first before moving on to other possibilities.

Hi Dave, another reason for engine misfires could be a faulty ignition coil. The ignition coil is responsible for sending electricity to the spark plugs, so if it is malfunctioning, it can cause misfires. I would recommend getting this checked and replaced if necessary.

Hi Dave, have you checked the air filter recently? A dirty air filter can restrict airflow to the engine, which can lead to misfires. It is recommended to change the air filter every 15,000 miles or as needed.