[mike unick]

when I bought the car it had 105,000 on it. the brake pedal was sticking and not returning with out pulling it back with my foot. since I was replacing the entire braking system I replaced the power boost and master. It still sticks. any one know why?

 

[towcat]

I would guess if it still sticks, it may be the plastic bushing in the support is worn out and it metal to metal and won't let it return.
Just a guess!