sometimes then i back down my driveway my brakes fell really odd like there is pressure there but the brakes arent gripping as hard as they should be at that point. and i can also here some springs or something like that when this happens. also everyonce in a while when i come to a stop at sign or something like that it will feel like a grinding

i know it isnt a rotor or a pad gone down to the metal i have checked those things and they are fine plus it doesnt happen all the time and also my abs light will pop on everyonce in a while and when that happens my subs cut out it is the strangest thing

Any suggestions? sorry for the long post and im sure the horse**** explanation best i can do i will try and answer questions the best i can if it will help with a diagnosis