Hi, I just replaced the steel brake line going from the master cylinder to the rear driver side brake connection. I bled the system but when I start the jeep and I press brake pedal it makes a loud noise as if there is an air leak coming behind the pedal. Also it is very hard to stop. Thanks for any input on this problem.

 

Is the vacuum line to the Power Brake Booster still attached and/or still in good shape?