Why is my Ford Transit Custom not starting?

I have a 2017 Ford Transit Custom and it's been having trouble starting. It will crank, but won't turn over. The battery, spark plugs, and fuel pump have all been replaced, but the issue persists. Any ideas on what could be causing this?

It sounds like there could be an issue with the starter or the ignition system. I suggest having a mechanic take a look at those components.

Have you checked the fuel injectors? Sometimes they can get clogged and cause starting issues. Try cleaning them or replacing them.

I had the same problem with my Transit Custom and it turned out to be a faulty fuel pump relay. Have that checked and replaced if necessary.