Changing brake master cylinder

Hello, I am Danny.

That is by far the best way to get air out of the new/rebuilt master cylinder. I am attaching a tutorial to show you in hopes of helping. Hope this helps and feel free to ask any other questions if needed. Thanks for using 2CarPros.

Danny-

https://www.2carpros.com/articles/how-to-replace-a-brake-master-cylinder

Thanks Danny. I replaced the master cylinder with a brand new one (not a re-manufactured), but when I press the brake pedal when the vehicle is off I have brake, once turned on, it goes to the floor. Any advice?

Hello again.

After replacing master cylinder did you also bleed all the individual wheels as well? Sounds like you still have air in the system. Hope this helps and feel free to ask any other questions. I have attached another tutorial showing how to bleed the Brakes.Thanks again for using 2CarPros.
Danny-

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system