Some Ford Focus owners are reporting uneven brake wear after performing a brake job or having it done at a shop. The problem can be caused by improper installation of the brake pads. While the pads look alike, there is a definite inboard and outboard pad. They cannot be swapped. The pads have a wear sensor and special “nibs” that hold the shim in place.
The pad with the wear sensor must be placed on the inboard side of the caliper (next to the piston). If it is placed in the outboard position, the nibs will press against the caliper housing and “cock” the pad slightly. The caliper’s clamping force will be applied to the nibs rather than the entire backing plate. This will cause uneven wear, vibration, and other noise.
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© 2012 Rick MuscoplatPosted on by Rick Muscoplat