Solid Brake Pedal

wizzer

Hi
Just recently I have got into my car first thing in the morning and the brake pedal has been absolutely solid with no breaking power as I pull of the drive.

A few pumps of the pedal later and everything is working perfectly.

Only happens infrequently but starting to occur a little more now?

Any ideas what the problem is and how serious. Obviously need to get it checked.

It's a Ford S Max 2007. Brake pads ok according to last service.

Thanks

ossie

Probably the Brake Servo ..........

gilbert_and_sullivan

Agreed, possible servo fault/leak (or pipe collapse) or maybe vacuum pump if its Diesel.

If you put your foot on the brake and hold it firmly when you start, does your foot slowly sink an inch or so as vacuum builds after a few seconds running, if so that's pointing to a vacuum fault of some sort.

marywooyeah

I had this today where the brake wouldnt pump down, then it started making an awful loud noise and revved up to the highest it can go. I kept pushing it down and slowly it went down and allowed me to brake but I felt lucky not to have an accident, 2 streets away there was a garage so made it over there intact.

guy took one look and said a brake pipe has come off and air is getting it which was causing the revs - they screwed it back on but also said that some of the pipes are getting rusty and need replacing fairly soon. From what you've said I would consider that your brake pipes need looking at.

wizzer

gilbert_and_sullivan wrote: »

Agreed, possible servo fault/leak (or pipe collapse) or maybe vacuum pump if its Diesel.

If you put your foot on the brake and hold it firmly when you start, does your foot slowly sink an inch or so as vacuum builds after a few seconds running, if so that's pointing to a vacuum fault of some sort.

It is a diesel. Will try this.
Thanks