Replaced break pads, calipers and master cylinder…still breaks sticking pars were replaced 3 weeks ago and are worn already. Any ideas?
Check the lines. If they fail internally, they can pinch off and block fluid from returning from the caliper when you let off on the brake, which keeps the caliper squeezed.
The rubber brake lines to the calipers can deteriorate and seal off, keeping the brakes slightly applied. Or maybe something wrong with the booster? But I’d think the lines are cheaper to replace, check rockauto.com for prices (if you have a cooperative mechanic).