2004 Saturn L300 Problem with brakes

[quote:0ccfc1e7ae="theresamoore"]Brakes problem
2004 Saturn L300 6 cyl Front Wheel Drive Automatic 50000 miles

I'm having a problem stopping. Front brakes were replaced. Master cylinder also replaced and back brakes look fine.
When I go to stop it keeps going but I hear a hissing sound when I put on the brakes, when you put your foot on the brake it feels hard but keeps moving. We don't see any leakage. Could it be the brake booster?[/quote:0ccfc1e7ae]

Sounds like the brakes need to be bled.

No they were bled. We did find the problem. The brake booster had a leak.

Where was the booster ;eak?
Did you have to replace the booster or was the leak repairable without replacing the booster?

The booster had a pinhole at its seam and had to be replaced