i replaced the master cylinder, and the two lines that run to the ABS unit.
then i tried to bleed the lot but failed, so drove to a garage who pressure bled it. Worked fine out of the garage... then progressively the brakes started remain 'on' until it got to a point when i could barely drive the car (This is over a period of about 5 minutes, and straight from the garage the brakes were VERY good, but i put this down to them being bled and maybe a bigger master cylinder...). Pulled over to stop them over heating and left it.
Ive removed some of the fluid from the reservoir, and also released the pressure in the servo. Neither have done anything... the brakes are a little less tight but im guessing this is cos the discs have cooled down and 'un'expanded
what do you reckon?
i didnt release some pressure from the caliper nipples yet as its dark now and the cars in a pub car park