Kia Forte: Troubleshooting
Second generation YD (2014-2018) / Kia Forte TD 2014-2018 Service Manual / Brake System / 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 (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 replace replace |
| Brake pull |
1. Piston (Sticking) 2. Pad (Oily) 3. Piston (Frozen) 4. Disc (Scored) 5. Pad (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 (Worn) 4. Pad (Cracked or distorted) 5. Rear brake shoe clearance(Out of adjustment) 6. Pad (Oily) 7. Pad (Glazed) 8. Disc (Scored) 9. Booster system (Vacuum leaks) |
repair air·bleed replace replace adjust replace replace replace replace |
| Noise from brake |
1. Pad (Cracked or distorted) 2. Installation bolt (Loosen) 3. Disc (Scored) 4. Sliding pin (Worn) 5. Pad (Dirty) 6. Pad (Glazed) 7. Anchor or Return spring (Faulty) 8. Brake pad shim (Damage) |
replace adjust replace replace clean replace replace replace |
| Brake fades |
1. Pad (Worn) 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 |
| 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
Tool(Number and Name)
Illustration
Use
09581-11000
Piston expander
Spreading the front and rear disc brake piston.
...
Brake System
...
See also:
Mode Control Actuator Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body -"Crash Pad Lower Panel") ...
Oil Level Gauge & Pipe Removal and Installation
1.
Remove the oil level gauge (A).
2.
Install in the reverse order of removal.
...
Installation
WCS(Weight Classification System) is utilizing a robust weight
measuring technology. Thus, if any of the following condi ...
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