Cable is rusted, bent, or hanging for some reason. Could also be the parking brake needs adjustment. The brake is not fully releasing.
Brakes adjusted to tightly, or the emergency brake lever is adjusted too tightly. Another possibility is you are riding the brake pedal, or the wheel cylinder is sticking.
No. The emergency brake uses the same brakes. It'll be equally ineffective.
Only on air brake vehicles.
emergency brake...
Parking brake (also known as emergency brake) foot pedal expands the rear brake shoes against the brake drum holding or stopping the vehicle in an emergency situation not as effective as regular service brakes
When brakes will not release when a foot is off the pedal, this is called sticking. There are various reasons for brakes sticking, but the most common involve an obstruction with the brake cable or the brake pads physically sticking to the drums or rotors. The safest way to remedy this problem is to have a professional inspect the vehicle.
The brake pads are actually shoes. The emergency brake relies on the rear brake shoes being applied by tension on the emergency brake cable against the rear drums to hold the car stationary. In other words, the rear brakes double as the emergency (parking) brakes.
STICKING BRAKE CALIPER
The brake caliber is sticking if it has rear disc brakes. The rear wheel cylinder is sticking if it has rear drum brakes. Replace both rear units and then drain all the old brake fluid out of the system and replace it with fresh fluid. Bleed the brake system.
The 2003 Chevy S 10 emergency brake can be adjusted with the emergency brake adjustment bolt. The adjustment bolt will be on the emergency brake pad.
The emergency brake cable is connected to the brake shoe on the rear brakes. You can adjust the emergency brake by loosening or tightening the nut on the end of the cable.
use your emergency brake if in motion, if not in motion get new brakes!