Hi, 6G
Im in serious need of help after driving my car for a couple of miles the brake pedal gets harder and the brakes are more responsive. After a while they lock up on me because of the heat. The Booster seems fine and the master cylinder and my calipers are returning. Can anyone think of any reason why this is happening.

Desperate davis

master cylinder is sticking or you caliper pistons are freezing...try replacing the calipers

What you mean master cylinder is sticking you mean inside the master cylinder sorry long day brain not fully on

Necro-bumping because I'm having the exact same issue...any ideas other than what was posted? Only seems to happen after driving for a while. I would think if the caliper was sticking the car would pull to one side while braking?