PARKING BRAKE NOT WORKING

The Emergency Brake On My Van Won't Work. I Have Had All The Brakes On The Van Replaced. When You Go Over A Bump There Is A Rattling Sound...

Tried Adjusting Cable, And Jacked The Back End Of The Car Up. The Lever Got Tighter But Rear Wheels Didn't Have Any More Resistance....

My Parking Brake Pedal Quit Holding My Suv.I Replaced Shoes Drums And Actuators Replaced Dust Shields While I Was There. Still No Parking...