Just bought an 89 Laredo. Its in pretty good shape but has been unused for quite awhile. I'm trying to get it ready for my wife to drive but the brake pedal goes all the way to the floor before I get brakes. So here are the things I've done. I've completely replaced the rear drums springs and all I've put a new master cylinder on and flushed all old fluid from the system. The hoses in front going to the calipers where old and cracked so I replaced them. I can't find Amy leaks anywhere but still the brake pedal is very loose. I feel like I bled the system I've got a steady stream of fluid coming out at every bleeder screw and no air. Does anyone have any ideas or anything I can check out?

B_willy_D has a work in progress Cherokee Forum

 

Are the rear shoes adjusted? Rebuild or replace wheel cylinders. Bad booster. Bad master cylinder, I know its new, doesn't mean its good.

 

Adjust the rear shoes. To test the adjustment pull the parking brake on and see if the brake pedal feels any different, if it does, adjust the rear brakes.