is it diesel? if so then your brake vac pump may be faulty. you could try disconnecting pipe at servo and with engine running feel at end of pipe for a suction/vacuum if none can be felt then either pipe or pump drive or pump itself will be at fault
k
July 2010
put your foot on brake pedal & start engine if your pedal start's to travel toward's the floor the servo is o.k,it could possibly be the master cylinder on it's way
GHOST
July 2010
chech servo pipe is not split or disconnected if ok sounds like your servo is at fault