2005 Ford Freestyle

Brakes problem
2005 Ford Freestyle 6 cyl Two Wheel Drive Automatic

I just replaced the rear brake calibers, rotor and pads. I think I need to bleed the air out of the brake lines. When I press the brake pedal the first time it goes to the floor. As I pump they pedal it gets better. But when I drive I have to continue to pump the pedals. Do I need to loosen the valve on the caliber and pump the brake pedal to get the air out.
October 4, 2010.

You will need to bleed the system, yes. Start with the wheel that is farthest away from the master cylinder.