if your brake pedal is still hard make sure they replaced the rubber seal between the booster and the master cylinder, without that seal the booster will NEVER get vacuum.
R

Sam checked vacuum and reported it to be good. But... the brakes are still have a hard pedal and the car's stopping power, well, I do have brakes now but they stop slower and that last bit of rolling takes an extra hard push on the pedal.

I'll have someone look at them.

db

Strawberry Plains girl
 

Debi,

You haven't mentioned whether your mechanic bled the brake lines at the master cylinder. If he doesn't do that, you'll have a great hard pedal but never enough brakes.

Have him try it, it only takes about two minutes with you pumping the brakes when he tells you to.

Ben