What cause grinding when you are ATTEMPTING to brake?

Answer:

If you are on a slippery road or just push the brake as hard as you can, that odd grinding feeling is probably your anti-lock brake system. The pedal will feel like it is grinding under your foot, accompanied by a grinding noise. this is a good thing, it means the system is working properly.

If you aren't on a slick road or jamming the break, you should see a mechanic immediately.

First answer by Dark Passenger. Last edit by Dark Passenger. Contributor trust: 26 [recommend contributor recommended]. Question popularity: 2 [recommend question].