I'm trying to diagnose a problem with a relative's car via long distance.
She often does not drive for 2-4 days at a time. When she first drives it after a few days' idle time, there is a loud grinding/scraping noise (not a squeal) from one or both rear brakes when they are first applied. After a couple of brake applications the noise "goes away". The longer the car sits idle, the worse the noise is.
She does not want to go to the dealer again (she's already been twice) without some idea of what to look at. The dealer is liable to give her a story about how he can't diagnose it unless it's misbehaving right under his nose.
thanks...