Noise from powerbrake booster

[mhjo]

I get this awful sound at certain rpm (diving in 30 mph) from the powerbooster. It sounds more like an elephants roam.

Here's the booster:

How To Install a Power Brake Booster - Mustang Monthly Magazine


It's connected in the rear of the intake (Edelbrock) via a hose.

Any way to silence this ?

 

[2+2GT]

If it's moaning while you're driving and not using the brakes, there's something wrong with it internally, and you have a warranty issue. Call Master Power.

 

[mhjo]

Fault found. The plastic (!) hose connector on the unit was broken w. leak.
Got a new connector from my Mustang supplier for free.