I replaced the brakes shoes and it stops better but, the pedal still almost goes to the floor. I am hearing a hissing sound. The sound is like air leaking from an air hose that happens when I apply the brakes. That's a bad brake booster right? Im going to buy a vacuum tester just to be sure but, brake wise Ive replaced just about everything. Oh the brake light and abs light still are lit.

 

if youve bled the lines and there are no leaks and you still arent getting pressure i cant think of anything other than a bad booster. so id say i have to second youre intuition.

 

the booster is only 19 yrs old, come on now!

that can also cause a rough idle.