I have a 2007 Ford Focus Sedan. Recently I have been getting a metal on metal scratching noise/ creaking noise from the left front of the car. It happens only when truing right or when going straight over bumpy or uneven roads. About 8 mouths ago I replaced the front struts and sway bar links, is it possible a new part has gone bad? I have inspected the steering, braking and suspension components as best I can and cannot find anything. Thoughts please.