Brake causes stuttering... Why would it do that?

[DRobbo]

Right, after nearly 2 months off the road the Golf is nearly roadworthy again, and I can come back out from underneath it!! 

BUT... There is one last problem... Applying the brake causes the engine to stutter. I can find nothing wrong and all I have really done in the last couple of months is replace shocks and springs, rear brake pads, and bleed the system, and a bit of rust removal therapy.

Any thoughts?

[Thom89]

Sounds like you may have a servo vacume fault, check your brake fluid level is correct, and fluid is not being sucked into the engine!
Tom

[Mr Blue]

sounds like a vacume leak yes

if not then just adjust the idle very slightly

[DRobbo]

Hmmm... Brake fluid level is fine, problem occurs with any amount of revs so idle is fine...

So it sounds like a vaccuum fault! Any way of fixing/checking this? Or do I need to replace more parts??

So close! 

[Thom89]

Its a problem that Ive not seen for many years, but I m thinking that the cure is a new servo... I could be wrong...
Tom

[nealey]

Check the servo pipe or the gasket isnt split anywhere,