I have a 93 Nissan quest. I changed the front pads, and the rear shoes. Bleed all the lines starting on the passenger side rear, moved to the drivers side rear, and then I moved to the passenger side front, and the driver side front.
During bleeding the brake pressure seemed to get better, and stay that way. But on a test drive, the brakes seem spongy, and slow to react. Where did I go wrong?