[WhiteMamba]

My car has an air noise when I hit my brake pedal...also on occasion my brakes seem to be non existant when I hit the pedal. Other times it's perfect. Seems to be when I pump the brake I have no brakes and when I hit it hard the first time there perfect.

Is this a bad vaccum on the booster or a bad booster? I see the large vaccum line going to my booster...should I replace that first?

Thanks

[93hatch]

bad brake booster=brakes hard as fuck to push
bad master cylinder or leak somewhere=brakes losing pressure and pedal going to the floor

[WhiteMamba]

Originally Posted by 93hatch bad brake booster=brakes hard as fuck to push bad master cylinder or leak somewhere=brakes losing pressure and pedal going to the floor

hmmm...well it's not happening all the time...but my brakes can be hard to push. Is this indicating a leak as it is not consistant?

[93hatch]

could be. If theres a leak anywhere on the master cylinder, its bad. Usually where it bolts to the brake booster. Any fluid coming outa it means the seals are bad

[MntlKase]

Originally Posted by 93hatch could be. If theres a leak anywhere on the master cylinder, its bad. Usually where it bolts to the brake booster. Any fluid coming outa it means the seals are bad

13.6 @ 127? mph seems kinda high don't ya think? I run 13.8 at 99-100mph. anyway, ya right on track with brake issue.
back on topic

[93hatch]

my g-tech is more accurate than any dyno or track on the planet