Brake Pedal To The Floor

2003 3500 Express van, 15 passenger. The brake pedal intermittently goes to the floor. The mechanic put in a new master cylinder, but it doing it again. Any idea what is going on? My guess is the ABS or hydraulic booster.

Mike D.

Reply to
Michael Dobony
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Are you pushing the pedal, when it goes to the floor? Or does it do it on its own?

Reply to
Stormin Mormon

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