Replaced a rear brake line on my 98 bonneville w/abs. how do i bleed system

SOURCE: bleeding brakes 2000 suburban wsith ab

Why were the brake lines replaced?

Sounds like the mastercylinder may have run dry. You have to bench bleed the master and then DO NOT allow fluid to run low, while bleeding brakes...

if master cylinder runs low on fluid and air gets in, almost impossible to bleed with out releasing the lines and bleed master it self.

SOURCE: 2001.5 Dodge Ram Diesel 2500 4x4 Brake Pedal drops to floor

It sounds like you have a bad mastercylinder cause when you panic brake it doesn't have time to bleed through the valve in the cylinder but under normal braking your foot is on pedal longer in turn giving the fluid time to bypass the valve in the mastercylinder in turn the pedal going to the floor.

Testimonial: "thnx"

SOURCE: 98 caravan no abs

You mean the NEW power booster only installed this morning is sticking The only thing that havn't been replaced is the metal lines and the rotors and the bearings.