Brakes Dragging

POSSIBLE CAUSE
1. Master cylinder pistons not returning correctly.
Correction - Adjust stop light switch and vacuum booster operating rod. If necessary, rebuild.

2. Restricted brake pipes or hoses.
Correction - Check for soft hoses or damaged pipes, and replace with new hoses and new double-walled steel brake piping.

3. Parking brake maladjusted.
Correction - Adjust.

4. Brake pad or lining clearance insufficient.
Correction - Adjust.

5. Brake pedal free play insufficient.
Correction - Adjust brake pedal height or power cylinder operating rod.

6. Piston in master cylinder sticking.
Correction - Clean or replace

7. Piston in disc brake caliper sticking.
Correction - Replace piston seals.

8. Pistons in rear brake wheel cylinders sticking.
Correction - Clean or replace.

9. Brake pads sticking in caliper.
Correction - Clean.

10. Return spring weakened.
Correction - Replace.

11. Parking brake binding.
Correction - Overhaul rear brakes or replace cable.

12. Front hub bearing preload incorrect.
Correction - Adjust or replace.

13. Rear brake shoes not returning.
Correction - Correct or replace brake back plate, check automatic adjuster and replace as necessary.

14. Obstructions in hydraulic circuit.
Correction - Clean.

15. Rotor warped excessively.
Correction - Grind or replace.

16. Rear brake drum distorted.
Correction - Grind or replace.

17. Piston cups swollen.
Correction - Replace brake fluid and piston cups.

18. Vacuum hose check valve faulty.
Correction - Replace.

19. Parking brake cable sticking.
Correction - Clean or replace.