Hyundai Santa Fe (TM): Brake System / Troubleshooting

Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual / Brake System / Troubleshooting

Troubleshooting
Problem Symptoms Table
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.
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·bleed
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 shoe (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·bleed
replace
replace
adjust
adjust
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 shoe (Faulty)
8. Brake pad shim (Damage)
9. Shoe hold-down spring (Damage)
 replace
adjust
replace
replace
clean
replace
replace
replace
replace
Brake fades
(When fast driving)
 1. Pad or lining (Worm)
2. Master cylinder (Inoperative)
 replace
replace
Brake vibration, pulsation

 1. Brake booster (Vacuum leaks)
2. Pedal free play
3. Master cylinder (Inoperative)
4. Caliper (Damage)
5. Master cylinder cap seal
6. Damaged brake lines
 replace
adjust
replace
replace
replace
replace

    Special Service Tools Tool (Number and Name) Illustration Use 09581-11000 Piston expander Spreading the front disc brake piston.

    Brake System Bleeding Nomal Brake System    • Do not reuse the drained fluid.

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