Noufal

I have been experiencing spongy pedal issues with my Ford Edge sport 2013. A year ago it started going spongy when I used emergency breaking. As soon as the air is released, it will be back to normal. However, later on it doesn't become normal after releasing the air. The master cylinder and brake booster have been replaced. The situation remains the same.Please let me know how I can resolve this issue I hope you can help me out with this issue. My dashboard does not display any warning lights.