I had front break work done. Now the front breaks almost lock up intermitently. The break pedal becomes very hard and the front end shakes. Master cylinder has been replaced.
The car was brought in because there was an air hissing noise when the break pedal was depressed. They replaced a front caliper, and I have had this problem ever snice. They replaced the master cylinder, a break line and the car still has the problem of the front breaks engaging, smoke coming off of both front wheels. If the car is stopped and re started the problem goes away. Then it will start again (break pedal hard as a rock, front end shaking car stops on its own)