Elderly neighbor asked me to look at brake problem on low mileage vehicle that stays parked in garage mostly. After ten mile warm up, shudder is noticeable on right front when brake applied. I suggested new rotors and pads (do not trust local rotor turning option) and found a seized right front caliper, therefore changed both, bled system and then things started cascading. After bleeding front brakes, pedal was great until I started engine, then pedal would just keep going to floor. Since then, I have changed the master cylinder, power booster as well as checked vacuum, hose and check valve and both front flexible brake hoses and a second right front caliper (due to uneven drag between sides). As well as a complete four wheel bleed, I have basically flushed out all the brake fluid through multiple part replacement and several times have bled the system. Used brand new or re-manufactured parts and all new DOT 3 brake fluid. Why am I still losing brake pedal all the way to the floor when running, but hard as a rock when not? He has spent several hundred in parts and I have have spent way too much time and effort. I have fixed original problem, but what caused the rest and how do I stop this problem?
have the same problem?
Thursday, February 9th, 2017 AT 8:34 AM