Hissing Noise From Break Pedal

[TommiePuglet]

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.

[Poodle]

It'll be the servo leaking, is it definitely coming from the passenger compartment side of the bulkhead? I've not heard of that valve, but sounds like it's worth a look for an easy fix.

[TommiePuglet]

It'll be the servo leaking, is it definitely coming from the passenger compartment side of the bulkhead? I've not heard of that valve, but sounds like it's worth a look for an easy fix.

 Clueless to how you got passenger side lol but what i was told correct or not There is a one way valve, this tends to come free or stuck open when under hard breaking. I Am Yet To Rip up carpets and very very unwilling to do a while break servo change will keep this thread updated with my findings.

[Seb_Ryan]

It'll be the servo leaking, is it definitely coming from the passenger compartment side of the bulkhead?

 Clueless to how you got passenger side lol but what i was told correct or not There is a one way valve, this tends to come free or stuck open when under hard breaking. I Am Yet To Rip up carpets and very very unwilling to do a while break servo change will keep this thread updated with my findings.

What he means is inside the car, not passenger side
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[Poodle]

Yeah that. As opposed to engine bay side.

The carpet is like any other component - will come out/go back in fine and won't be any different to how you started. Well, so long as you don't remove it with fire and a lever bar lol.

[welshpug]

sounds like a dead servo, bit of a bastard on a 306, nuts from cabin side onto studs coming through the pedal box.

[tom-dturb]

Had to drop the engine off the mounts when I done my servo. Not a nice job

[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.