Loving my red
Join Date: Oct 2009
Location: United Kingdom
Help! Rear brake proportioning/bias valve pouring out brake fluid...
My car failed its MOT yesterday due to poor rear brake performance. It had new discs and pads a couple of months ago yet it still failed on service brake perforamance and handbrake performance.
I found a guide on here about adjusting the handbrake which I duly did but its still no good. I also found a guide about resetting the rear caliper auto-adjuster. It said this should be done by disconnecting the handbrake cables from the calipers (easy), pumping the footbrake FORCEFULLY at least 10 times, and then reconnecting the handbrake cables.
I pumped the footbrake hard with the engine off and then repeated with the engine running. However, when I pressed the footbrake forcefully (not going completely mad though) it seemed to "give" a little. It turned out brake fluid was pouring out of the top of the rear brake load compensating/bias valve.
Does anyone know what could be wrong? Also, how much are new ones and where can I get them?
I'm typing this sitting on a teledial wheel, surrounded by bolts and spanners and brake fluid soaked rags. Hmmm.
Any help very gratefully recieved.