i bought my focus 1.6 3yrs ago its a y reg model it was ok for the first 6 months and after that come along a noise when you go over a bump or turn the steering its a weird knocking noise and you can hear it from inside the car.over the yrs ive change the steering rack,front shocks,bearing cups that sit on the springs,wish bones,track rod ends,tie bars from shocker to anti roll bar,anti roll bar bushes,and quiet frankly im running out of ideas.the noise doesnt even show up at mots,the noise isnt constant but when it does its annoying and carnt think of anything else at all what it can be.has anyone had any similar experiences or have ideas that i can try