After replacing the brake booster brakes are not working properly and pedal goes to the floor?

Hi,

If the brake pedal is going to the floor, chances are the master cylinder is bad. When you bleed them, does the brake fluid come out?

Let me know. Also, take a look at this link and let me know as much as you can. For example, why was the booster replaced? Was it leaking vacuum?

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

Let me know.

Joe