What Causes Rear Drum Brakes To Lock Up. It is found at the top of the shoes and its function is to place force on the shoes so they comes into contact with the drum. Rear drum brakes can lock for several reasons.
If both backs are locking up I would check the porportioning valve abs unit or master cyl if it is only one wheel then I would check the wheel cyl. Having the drum brake assembly stick on can mean either the vehicle wont m. Rear drum brakes can lock for several reasons.
A faulty cylinder could cause brake lock up.
These can include an overheated braking system using the wrong brake fluid damaged or broken parts calipers brake pads pistons rotors or others a defective ABS component broken parking brake and more. One purpose might be a faulty wheel cylinder which is a part of the brake system. A defective cylinder can cause brake lock up. Brake Drum Condition.
