Always check the wheel cylinders for leaking - this wheel cylinder leak was hidden behind the boot - this is a 2005 Ford Taurus with 100,000 miles that is in good shape and has been maintained well, yet the inside of these wheel cylinders had just enough rust pitting to leak fluid. And wheel cylinders don't cost much, but it takes some skill and/or training to replace them.
![](https://i.ytimg.com/vi/-sDQw-HtxMA/maxresdefault.jpg)