I recently changed the brake pads and rotors on my CR-V and all seemed fine. Today, the car started to make a horrible sound from the right rear brake and a visual inspection revealed pitting and grooves in the rotor. Incidentally, when the brake work was performed, this brake exhibited the most significant wear (down to the metal) and pitting of the rotor. I am wondering whether the caliper was damaged by excessive heat generated by “metal on metal” friction or whether there is an underlying problem with the caliper etc causing this specific problem. Thanks in advance for any advice.
Anytime one wheel has more pad wear than the other three, you should take that as a sign to replace the caliper on that wheel. Also, check and verify that the slides are working freely.