When the brake is locked up, crack open the steel line at the master cylinder. If it releases from there, suspect brake fluid contamination.

Answered by caradiodoc (expert)
17,303 answers provided

I will try that soon as i get a chance. The fluid has been flushed every 6 months to be safe so i'm just curious if i drive to much lol.

Response from syllinx
6 questions asked

It was a groove in the area where the pad slides. I had to file them down smooth and now brakes are good.

Response from syllinx
6 questions asked

Happy to hear it's solved. Rather than removing material from the mount, the better approach is to weld it to build the metal up, then grind it down smooth. While grinding it down will solve the pad from catching, it increases the clearance between the caliper and mount. That will cause it to knock once when the brakes are applied and again when they're applied in reverse.

Other fixes include replacing the knuckle with a new one, if it's still available or you can find a good one in a salvage yard, and installing stainless steel inserts. Many import vehicles come with those inserts standard.

Answered by caradiodoc (expert)
17,303 answers provided