why are my breaks hard randomly at slower speed with a weird noise? on 1995 Ford Ranger

sometimes 1-5 times in a row then it will break fine for a whole day I have 4x4 abs does this matter?

by in Morro Bay, CA on March 08, 2013
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2 answers
ANSWER by , March 08, 2013
ABS light on?
ANSWER by , March 09, 2013
Sounds like problem with brake booster. Maybe first replace check valve on it and look for any vacuum leaks to it.