Hyundai Accent: TroubleshootingTroubleshooting
| Problem Symptoms Table | 
| 
		Symptom | 
		
		Suspect Area | 
		
		Reference | 
	
| 
		Lower pedal or spongy pedal | 
		
		1. Brake system (Fluid leaks) 2. Brake system (Air in) 3. Piston seals (Worn or damaged) 4. Rear brake shoe clearance(Out of adjustment) 5. Master cylinder (Inoperative)  | 
		
		repair Air bleeding replace adjust replace  | 
	
| 
		Brake drag  | 
		
		1. Brake pedal free play (Minimum) 2. Parking brake lever travel (Out of adjustment) 3. Parking brake wire (Sticking) 4. Rear brake shoe clearance(Out of adjustment) 5. Pad or lining (Cracked or distorted) 6. Piston (Stuck) 7. Piston (Frozen) 8. Anchor or Return spring (Inoperative) 9. Booster system (Vacuum leaks) 10. Master cylinder (Inoperative)  | 
		
		adjust adjust repair adjust replace replace replace replace repair replace  | 
	
| 
		Brake pull | 
		
		1. Piston (Sticking) 2. Pad or lining (Oily) 3. Piston (Frozen) 4. Disc (Scored) 5. Pad or lining (Cracked or distorted)  | 
		
		replace replace replace replace replace  | 
	
| 
		Hard pedal but brake inefficient  | 
		
		1. Brake system (Fluid leaks) 2. Brake system (Air in) 3. Pad or lining (Worn) 4. Pad or lining (Cracked or distorted) 5. Rear brake shoe clearance(Out of adjustment) 6. Pad or lining (Oily) 7. Pad or lining (Glazed) 8. Disc (Scored) 9. Booster system (Vacuum leaks)  | 
		
		repair Air bleeding replace replace adjust replace replace replace repair  | 
	
| 
		Noise from brake  | 
		
		1. Pad or lining (Cracked or distorted) 2. Installation bolt (Loosen) 3. Disc (Scored) 4. Sliding pin (Worn) 5. Pad or lining (Dirty) 6. Pad or lining (Glazed) 7. Anchor or Return spring (Faulty) 8. Brake pad shim (Damage) 9. Shoe hold-down spring (Damage)  | 
		
		replace adjust replace replace clean replace replace replace replace  | 
	
| 
		Brake fades | 
		
		1. master cylinder | 
		
		replace | 
	
| 
		Brake vibration, pulsation | 
		
		1. brake booster 2. pedal free play 3. master cylinder 4. caliper 5. master cylinder cap seal 6. 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. | 
		
		  | 
	
Special Service Tools
Brake SystemInstallation
   
	
		
		1.
		
		
			Remove the ignition key from the vehicle.
		
	
	
		
		2.
		
		
			Disconnect the battery negative cable from battery and wait for 
			at least three minutes befo ...
   
Occupant detection system
   
Your vehicle is equipped with an occupant detection system in the front passenger's 
seat.
The occupant detection system is designed to detect the presence of a properly-seated 
front passeng ...
   
Removal
   
	
		
		1.
		
		
			Turn the ignition switch OFF and disconnect the battery 
			negative (-) cable.
		
	
	
		
		2.
		
		
			Disconnect the manifold absolute pressure sensor 
			con ...