When I back up or I am driving for awhile a get a high pitched grinding steel noise that only lasts for about 10 seconds and then disappears.
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2004 Honda Civic Question: I pitched noise. Think it might be rodar.
Answer #1patrick mannion from Greg Solow's Engine Room, March 08, 2009, 00:09Master
I suspect the sound may indicate the rear brake pads are worn. There is a metal finger attached to the brake pads, as the pads wear the finger is allowed to touch the brake disc emitting a loud high pitched squeal.