2004 Saturn L300 Sometimes Apply Brakes Stop Sign Brake Pedal Stays Down

2004 SATURN L300
85,000 MILES
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Sometimes when I apply my brakes at a stop sign, the brake pedal stays down. Usually it comes back up in a few seconds. One time it stayed "locked" for about a minute. We have changed the master cylinder and the front calipers. It is still happening and seems to be getting worse. (Used DOT 3 Brake Fluid) Any idea what else could cause this problem.
Feb 22, 2013 at 1:22 AM
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SATURNTECH9
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Sounds like the brake booster or brake pedal itself is sticking down.
Feb 22, 2013 at 1:33 AM
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