Hi I have the usual hissing noise coming from the footwell of my 98 2.3 Galaxy. Its the servo valve under the brake pedal. It hisses when no pressure is applied and decreases the harder I push he pedal. So I am pretty sure it needs replacing. :) Does anyone know of any guides for this job? Looks like a pig to me, but cant afford to get a garage to do it. Any advice appreciated. ;) Cheers Kev