i need ideas as to why my brakes keep going shit.im getting air in the system,when i bleed them they are fine for a couple of days then start going to the floor.iv changed the master cylinder,and brake cylinder and still no joy.it is not leaking anywhere as far as i can see,plus im not loosing any fluid,if it is, it must be very little as i havnt noticed! its an escort van 55d. please help as its bugging me.

 

are you bleeding it while jacked up?

if so it needs to be done on the floor cos of the rear bias valve(i think)

 

maybe the servo's knackered and the fluid going past the seal!

 

Alvyn, i dont seem to be loosing any fluid .
Costina,my mate done them on a 4 post ramp at his work is that correct?

 

as said above need to be done on the floor, but you can be sucking in air without the loss of fluid mate