FAQs
My original master cylinder leaked out of the back of the piston into the booster area. Why?
- Check booster for a defective push rod seal. If this seal is bad, it could drain the brake fluid out of the master cylinder.
I replaced the master cylinder and now the pedal is high and hard. Why?
- The master cylinder is working correctly. Check for a faulty brake booster or frozen wheel cylinder/caliper.
My original master cylinder leaked out of the back of the piston into the booster area. Why?
- Check booster for a defective push rod seal. If this seal is bad, it could drain the brake fluid out of the master cylinder.