It knocks even more if I turn the wheel. Helpful Leave your … Direct injection. ... My 2015 ford escape is making a knocking noise when at idle. Share your favorite Fiesta ST photos as well as engage in discussions with fellow Fiesta ST owners on our message board. I’ve noticed quite a loud and constant ticking noise from the engine at all revs but mostly noticeable at low. I collected a brand new Fiesta Titanium 1.0 Ecoboost Auto from a main dealer 18 days ago, and it's since only done 300 miles. I found several cars in the www with the same problem.