Hissing Noise From Break Pedal

[Welshy_Pete]

Soooo,

As Far As Im Aware There Is A Little Red Valve That Often Shoots Off Or Falls Off And This Creates The Hissing But I Think I May Be Wrong There Is Only A Slight Hissing When On Stand Still But Under Acceleration It Follows What Im Guessing Is Boost The Faster I Go The Louder It Gets.

Any Ideas, Or A Fix.

Thanks In Advance.

I got the same problem you have to change the servo it's the only way to fix the problem.