I have an 08 ESV and just today, it started squealing when I was driving. It appears to be coming from the front, drivers side. If I apply the brakes, the noise stops completely. It appears to be running completely fine, other than the noise. Any ideas on what this could be? It has 62k miles (out of normal warranty) and I want to avoid taking it in to the dealership and paying a hefty repair bill, if it all possible.