Hello! Have a problem with my wife’s Ford Ka. The rear brake only works quite properly on the right, on the other hand, almost zero on the left. I also read through some articles and noticed there the tip that it could be on the control pressure valve. I bought a valve from Ford today and built it with anticipation, but unfortunately it still doesn’t work on the left side. I also tested on the asphalt and clearly recognized a brake track on the right side only unfortunately not on the left. The linings are still very good and I also made a little improvement on them, but also that didn’t bring about any improvement. Have the vehicle screwed on the left side today and the brake operated at the same time I tried to solve the screws of the wheel. The wheel moved so that I could not solve the screws. Thanks to the valve the braking effect was only slightly improved. Of course I also ventilated the system. Now it’s up! Does anyone have a tip for me?