a little ways back i was in an accident where i had to raplace all the control arms, strut, and brakes on the passenger side, i got everything back together and took it for a ride without bleeding the brakes, at first i could push the pedal all the way to the floor and get nothing, i had to downshift to slow down and use the e-brake, i let the car sit awile longer because i wasnt done fixing some things from the wreck, i moved the car around in the yard and the brakes felt ''normal'' again, like the should, then i let the car sit a little more and the brake pedal was impossible to push, thats why i think i have air in the line.