Just fitted rear disks to my car yesturday and all seemed fine. Until i drove the car. No braking power until way down the pedal.

Not a problem i thought, just bleed the system. Which I have this morning, getting plently of fluid from each caliper with no air bubbles...... but still no braking power till the pedal is at least 2/3 the way down but feels fine when the engine is off. Also pedal does not come back up very quickly!

Any advice would be very much appreciated please

Dan