VisceralSauce

This happens at random. Shortly after my start up in the mornings and just a couple blocks into my commute. I'll hear a metallic click once or twice. It sounds as if it's coming from under the back seats? ~150,000 miles I've only had one "accident" where I went off the interstate in winter of 13/14 There was no serious damage done, a crack in the wheel cover was all I noticed and continued my 600 mile drive home. This just started over the past month or two, surely it's not connected? Any help would be appreciated.

This started after having all brakes replaced by STS (first mistake, I know) I have a 2008 Ford Edge SEL AWD Just under 151,000 miles. When in reverse only, when I apply the brakes, they squeak something horrible. The pads are fine. This isn't just a "now and then" occurrence. It's every time I back out of a parking spot or parallel park. Any reason why this is happening? What should I look for? Easy fixes? All help appreciated.