Hissing noise coming from break pedal

[neb_scot]

My breaks have all but quit stopping the B2. At first I thought it was due to fluid levels - but on checking, the levels look ok although the fluid is turning black...

As I was driving home today, I noticed that when I when I braked (while the engine was running) there is an audible hiss sound coming from the area of the pedal. As soon as I stop the engine, the hiss gets louder for a second, then stops completely as the pedal suddenly feels strong again (if that makes sense).

Would anyone have any idea why this is happening?

[tekatlarge]

Sounds to me like a ruptured power brake diaphragm. The engine vacuum is routed to the brake booster to give you power brakes. If you hear hissing then it is leaking. replace the booster!

[neb_scot]

thanks for the quick reply -

so how big a job is that...

[tekatlarge]

Probably about an hour of labor..

Want to make an Appointment? he he

[neb_scot]

given the state of my break pipes - Im very doubtful that they would survive being disconnected. Ive also got a broken bleed nipple on the back passenger wheel - so Im guessing that would need fixed too.

All in all, Im feeling this might be the end of the road for my B2 as I lack the time and resources to repair it