So ive searched this but maybe is didnt thoroughly so i may have missed it but can someone enlighten me? I bought a 2007 honda civic hybrid about a week ago and have been working to refurbish the whole car like i did with my 2005, replace all fluids and so on. So i came to flush my system and i can see there is a reservoir and a main in the back. Another thing i noticed was that with engine off i can keep depressing the pedal as if there is assist. Never hardens up like other regular cars. So my question is, is this normal? Or is this basically crazy air in the system?

thanks in advance