There are several things that you need to do to get a good pedal. Start bleeding the brakes on the right rear then left rear then right front then left front. also when bleeding the brakes DON'T PUMP THE PEDAL Push it down once to keep from mixing the air with the fluid. Then let off of the pedal and wait 5 seconds before pumping once again. This takes longer but it is effective. Make sure you have new fluid going through the system at the right rear before going to the next wheel.
Air in the brake system- Brake system needs to be bleed and fluid needs to be added while you are doing that.
You need to bleed the brakes.
Usually means they probably didn't bleed the brakes or did not top off the brake fluid
If You Replaced the master cylinder Did you Bleed it as well? if not you need to bleed it first. then bleed the brakes start with the passenger side rear, then driver side rear, then passenger side front, then finally the driver side front.
Bleed the brake lines and make sure there is no air in the system.
try and bleed brakes , if that wont work you need a master cylander
Try bleeding your brakes. If there is air in the system it can give a spongy feeling to your brake pedal and require you to pump your brakes and/or put your brake pedal to the floor.
It sounds like you need to bleed the system of air.
The best way to tell when you need brakes is by squeaking, when the brakes are rubbing against the metal, when your brake pedal goes all the way to the floor and when you are running out of break fluid.
Defective Master Cylinder or broken brake line. Replace the master cylinder and bleed the brakes.
you either need to bleed your brakes, add fluid or get a master cylinder email@example.com
bleed your lines,may be air in them