How to troubleshoot a malfunctioning Vauxhall Vivaro engine?

I've recently been experiencing engine issues with my Vauxhall Vivaro. When I start the engine, it makes a loud ticking noise and shakes violently. I'm unsure what could be causing this and how to fix it. Can anyone offer some advice?

It sounds like you may be experiencing a misfire in your engine. This could be due to a faulty spark plug or a clogged fuel injector. I would recommend checking these components and replacing them if necessary.

I had a similar issue with my Vivaro and it turned out to be a faulty ignition coil. You may want to have that checked as well.

Another possible cause could be a problem with your fuel pump or a clogged fuel filter. I would suggest checking those as well.