2004 Buick Ranier Brake problem

2004 BUICK RANIER
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STONEKING84
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Brakes problem
2004 Buick Ranier 6 cyl Four Wheel Drive Automatic

At a slow speed (10 to 20mph)on dry pavement the brakes act like it is on ice. The car will stop but the pedal feels like it hits a bump and then goes down a little farther. This does not happen at higher speeds.
Sep 29, 2010 at 8:11 AM
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MHPAUTOS
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Hi there,

Light pressure slow speed braking with poor stopping can be a failing (by-passing ) master cylinder, with extra pressure of harder braking the main seal is forced onto the cylinder wall with more force and fluid will not by pass, i would have this check first.

mark (mhpautos)
Sep 29, 2010 at 8:20 AM