Ford Repair: Squeal when tires rotating, ford windstar, ford dealership

Question
I recently took my Ford Windstar to the Ford dealership for them to check front and back brakes.They relined front and back, and turned rotors. When I picked up the van while driving squealing was coming from tires when they were rotating.not from the rubber. I took it back to Ford they inspected it and couldn't find the problem, they said they took it for a test drive and couldn't hear anything(they may have a hearing problem) Do you know what it might be? I took it for a drive on the highway and it's worse.There was no squealing before I took it to Ford.

Answer
sounds like it might be one of the clips slightly touching especially if it gets worse when turning-could be pad material that is if it is brake related-hearing problem good possibility if the one who drove it is over 35-40 years and male-you may already know this but it is normal for some men to lose a range of high pitched hearing i know because i lost mine and checked into it found its normal and hearing aids won't help. the way i found out was listening for a brake noise a lady was complaining about i couldn't hear it but my technician could and said it was loud. kinda wierd knowing it's there but can't hear it at all so i always take a younger tech when test driving noises. sorry for the long explanation

also be sure its not a belt squeal-roadtest with the tech when you hear it see if he does if not get a younger tech to ride with you that shouldn't bother them if they are interested in making sure your brakes are ok and want to keep you happy.