Problem Symptoms Table

WARNING: This page is about a different car, the 2018 Hyundai Accent. However, it is still accessible from the selected car via links, so may be relevant.

Use the table below to help you find the cause of the problem. The numbers indicate the priority of the like cause of the problem. Check each part in order.

If necessary, replace these parts.

BRAKE SYSTEM TROUBLESHOOTING

Symptom	Suspect Area	Reference
Lower pedal or spongy pedal	Brake system (Fluid leaks) Brake system (Air in) Piston seals (Worn or damaged) Rear brake shoe clearance (Out of adjustment) Master cylinder (Inoperative)	repair air bleed replace adjust replace
Brake drag	Brake pedal free play (Minimum) Parking brake lever travel (Out of adjustment) Parking brake wire (Sticking) Rear brake shoe clearance (Out of adjustment) Pad or lining (Cracked or distorted) Piston (Stuck) Piston (Frozen) Anchor or Return spring (Inoperative) Booster system (Vacuum leaks) Master cylinder (Inoperative)	adjust adjust repair adjust replace replace replace replace replace replace
Brake pull	Piston (Sticking) Pad or lining (Oily) Piston (Frozen) Disc (Scored) Pad or lining (Cracked or distorted)	replace replace replace replace replace
Hard pedal but brake inefficient	Brake system (Fluid leaks) Brake system (Air in) Pad or lining (Worn) Pad or lining (Cracked or distorted) Rear brake shoe clearance (Out of adjustment) Pad or lining (Oily) Pad or lining (Glazed) Disc (Scored) Booster system (Vacuum leaks)	repair air bleed replace replace adjust replace replace replace replace
Noise from brake	Pad or lining (Cracked or distorted) Installation bolt (Loosen) Disc (Scored) Sliding pin (Worn) Pad or lining (Dirty) Pad or lining (Glazed) Anchor or Return spring (Faulty) Brake pad shim (Damage) Shoe hold-down spring (Damage)	replace adjust replace replace clean replace replace replace replace
Brake fades	Master cylinder (Inoperative)	replace
Brake vibration, pulsation	Brake booster (Vacuum leaks) Pedal free play Master cylinder (Inoperative) Caliper (Damage) Master cylinder cap seal Damaged brake lines	replace adjust replace replace replace replace
Brake Chatter	Brake chatter is usually caused by loose or worn components, or glazed or burnt linings. Rotors with hard spots can also contribute to brake chatter. Additional causes of chatter are out-of-tolerance rotors, brake lining not securely attached to the shoes, loose wheel bearings and contaminated brake lining.