Why is the ford transit 2.2 Making a knocking noise from engine?

A malfunction or failure in a few different parts could lead to a knocking noise from the engine. Bent rods, displaced or broken rockers, wiring, injectors and faulty timing are all potential causes that make the 2.2L Transit make a knocking noise. To assess the situation, there are a few different factors to consider. First, check if there is any smoke coming out of the vehicle. If so, make sure to check Your filters and see if they are clean, while also making sure Your rockers are firmly in place. If the filters and rockers are fine, its most likely an issue with the Transits injectors. The injectors may be damaged, or malfunctioning for some other reason, but a simple replacement should address the problem.