How to troubleshoot an engine starting issue in a Vauxhall Vivaro?

I am having trouble with my Vauxhall Vivaro's engine, it seems to have difficulty starting. What could be the cause of this issue and how can I fix it?

First, check your battery connections and make sure they are secure. If they are loose, tighten them and try starting your engine again. Also, check for any corrosion on the terminals and clean them if necessary.

If your battery seems fine, the issue could be with your starter motor. Inspect the connections and make sure they are tight. If they are, you may need to replace the starter motor.

Another potential cause could be a faulty fuel pump. Check the fuel levels and make sure the pump is working properly. If not, it may need to be replaced.

In some cases, the issue could be with the ignition system. Check the spark plugs and ignition coils and replace them if necessary.

If none of these solutions work, it may be best to take your Vauxhall Vivaro to a mechanic for further inspection. They will be able to diagnose and fix the issue for you.