how do i know if its bad.

i just replaced the lines, but i still hear a slight vacuum leak, and my car sputters down low sometimes, and when im takin off in 1st-3rd, with only like 10% gas it sputters.


and i noticed a few times my brake lights stay on, when my car is turned off

any stuffffff

 

usually hard pedal, and not stopping very well at all, sometimes you can hear vacuum leak noise when hitting the brakes.
i just happen to have one for sale if you need it.

 

brake feel is fine.

but thanks

sorry i forgot to mention that

 

make sure the one-way valve that the 2 hoses connect to is setup right. after changing pads and bleeding the lines on my brother's car, it came down to me putting the valve in backwards. DOH! but driving without power brakes was a good calf exercise.