brakes

[Graydon5oh]

ok still having bake problems new master cylinder brake cylinders calipers are good and lines are good new distribution block brake lines are good and can not find a leak. when i hit the brakes the seem good then slowly leak to the floor. causing me to have to pump the brakes the line to the booster is getting vacuum. my friend told me that it may be my brake booster but i thought if it went bad it would just cause me to have manual brakes and them just be really firm and hard to push any ideas would help please

 

[Trefty]

Well youve definitely got air in your system. Re-bleed the brakes and check again. A leaky power brake booster wont cause your pedal to be spongy but will make it harder for you to apply the brakes.

 

[wrenchbender]

Sounds like you have a defective master cylinder.

 

[Aryan15]

make sure to start from the farthest brake from the master cyl. and work your way to the closest.

 

[cjones]

did you fully bleed the master before you installed it. if so, and you bled the brakes of air then i'd return the master.

 

[Trefty]

Yea, make sure the master cylinder was bench bled before installation.

 

[SVT32VDOHC]

Sounds like a bad booster to me. Some get rusty and they leak where the master butts up with booster. You may not see rust holes, but they oculd be there!