Inspect the driveaxle CV joints/boots-also the strut The most common cause is rust buildup on the back of the brake rotors or the pads are worn down and grinding on metal. If a brake inspection doesn't reveal the cause, a tool called the "Chassis Ear" can be real helpful. It's a set of six microphones, a switch box, and headphones. You place the microphones near suspect points, then switch between them and listen during a test drive. Many mechanics have never heard of this tool but most new car dealers have them. You might find one at an auto parts store that rents or borrows tools.
Sunday, July 24th, 2011 AT 11:27 PM