right front brake locks up and will not release. what makes this happen? hoe do on 1993 GMC Safari

I replaced brke calbers on both sides bleeded them but still it locks up and will not release. WHY ?

by in Estacada, OR on November 09, 2012
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3 answers
ANSWER by , November 10, 2012
REPLACE THE FLEX HOSE, IT HAS COLLASPED INTERNALLY, PRESSURE WILL APPLY THE BRAKE BUT WILL NOT RELEASE COMPLETELY.
ANSWER by , November 10, 2012
Yes HOE do have to change brake hoses David Adamson.
ANSWER by , November 11, 2012
never mind........