jim66bob

I have a 2010 Ford Edge which needs one of the Park Aid Sensors on rear bumper (center right) to be replaced (no clicking sound). Access from behind is not easy. Is there an easy way to replace the sensor? I would like the full procedure. Do I need to remove the bumper? If so, how do I do this? How are the sensors removed? Any help would be good. Ford wants $230 for just one sensor and no telling how much if they do the work.