Originally Posted by Rshane
You most likely have a small pebble in your rear brake dust shield. This has happenened to me a few times. Each time I simply took a screwdriver and pushed in on the dust shield at the 5 o'clock position. I never heard or saw the pebble fall out ( strange) but, the cow bell went away.
This has happened to many folks here.
Same for me, definately strange. It happened with about 100 miles on the odo