I have been fight front disc brake issues for the last 2 weeks. It seems that whenever I step on the brakes the fronts go into line lock and I'm done. If I release the presure by backing off the bleeder valves, they seem to let loose, but then as soon as I hit the brake again ... Line Locked! The Master Cylinder, the power booster, all the lines & hoses have are all rebuilt or brand new. The back brakes work perfectly. I just replaced the propurtioning valve as sort of a last resort hoping that would fix the problem (another $100 down the drain)... to no avail. So all that I have left are the calipers themselfs. They are the orginals and have not been rebuilt. I just seems odd that both of them would be bad and behaving excatly the same. But it's the last piece that I have to replace.
Any thoughts on this? Any suggestions?
Thanks in advance.