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Why master cylinder keeps going out.

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This is a 1985 Chevy 2500 pickup. I have put two master cylinders on and am about to put a third in three years. They all keep losing fluid from the back reservoir and leaking it into the brake booster. This truck gets driven very little, usually only about six months out of the year and then usually just short trips locally. what is causing these master cylinders to be going out so often?

Henry Ray in Silsbee TX

Sep 27, 2014

2 Replies

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Opens 8:00 AM Tue

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