Kia Sedona (2008 year). Manual - part 267

3. Piston (Frozen)

replace

4. Disc (Scored)

replace

5. Pad or lining (Cracked or 
distorted)

replace

Hard pedal but brake inefficient

1. Brake system (Fluid leaks)

repair

2. Brake system (Air in)

air-bleed

3. Pad or lining (Worn)

replace

4. Pad or lining (Cracked or 
distorted)

replace

5. Rear brake shoe clearance (Out 
of adjustment)

adjust

6. Pad or lining (Oily)

adjust

7. Pad or lining (Glazed)

replace

8. Disc (Scored)

replace

9. Booster system (Vacuum leaks)

repair

Noise from brake

1. Pad or lining (Cracked or 
distorted)

replace

2. Installation bolt (Loosen)

adjust

3. Disc (Scored)

replace

4. Sliding pin (Worn)

replace

5. Pad or lining (Dirty)

clean

6. Pad or lining (Glazed)

replace

7. Anchor or Return spring 
(Inoperative)

replace

8. Brake pad shim (Damage)

replace

9. Shoe hold-down spring 
(Damage)

replace

Brake fades

1. master cylinder

replace

Brake vibration, pulsation

1. brake booster

replace

2. pedal free play

adjust

3. master cylinder

replace

4. caliper

replace

5. master cylinder cap seal

replace

6. damaged brake lines

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.

 

 

2008 Kia Sedona 

2008 BRAKES Brake System - General - Sedona

  

Microsoft 

 

Saturday, May 22, 2010 6:55:01 PM

Page 6 

© 2006 Mitchell Repair Information Company, LLC. 

2008 BRAKES

Brake System - Sedona 

OPERATION AND LEAKAGE CHECK 

CHECK ALL OF THE FOLLOWING ITEMS:  

BRAKE SYSTEM CHECKING PROCEDURE 

Component

Procedure

Brake Booster (A)

Check brake operation by applying the brakes during a test drive. If the brakes do 
not work properly, check the brake booster. Replace the brake booster as an 
assembly if it does not work properly or if there are signs of leakage.

Piston cup and 
pressure cup 
inspection (B)



Check brake operation by applying the brakes. Look for damage or signs of 
fluid leakage. Replace the master cylinder as an assembly if the pedal does not 
work properly or if there is damage or signs of fluid leakage.  



Check for a difference in brake pedal stroke between quick and slow brake 
applications. Replace the master cylinder if there is a difference in pedal 
stroke.  

Brake hoses (C)

Look for damage or signs of fluid leakage. Replace the brake hose with a new one if 
it is damaged or leaking.

Caliper piston seal 
and piston boots 
(D)

Check brake operation by applying the brakes. 
Look for damage or signs of fluid leakage. If the pedal does not work properly, the 
brakes drag, or there is damage or signs of fluid leakage, disassemble and inspect the 
brake caliper. Replace the boots and seals with new ones whenever the brake caliper 
is disassembled.

 

2008 Kia Sedona 

2008 BRAKES Brake System - Sedona

  

 

2008 Kia Sedona 

2008 BRAKES Brake System - Sedona

  

Microsoft 

 

Saturday, May 22, 2010 6:54:26 PM

Page 1 

© 2006 Mitchell Repair Information Company, LLC. 

Microsoft 

 

Saturday, May 22, 2010 6:54:30 PM

Page 1 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 1: Hydraulic Brake System Component Locations 
Courtesy of KIA MOTORS AMERICA, INC. 

BRAKE BOOSTER OPERATING TEST 

For simple checking of the brake booster operation, carry out the following tests 

1. Run the engine for one or two minutes, and then stop it. If the pedal depresses fully the first time but 

gradually becomes higher when depressed succeeding times, the booster is operating properly, if the 
pedal height remains unchanged, the booster is inoperative. 

Fig. 2: Checking Brake Booster Performance (1 Of 3) 
Courtesy of KIA MOTORS AMERICA, INC.

 

2008 Kia Sedona 

2008 BRAKES Brake System - Sedona

  

Microsoft 

 

Saturday, May 22, 2010 6:54:27 PM

Page 2 

© 2006 Mitchell Repair Information Company, LLC. 

2. With the engine stopped, step on the brake pedal several times. 

Then step on the brake pedal and start the engine. If the pedal moves downward slightly, the booster is in 
good condition. If there is no change, the booster is inoperative. 

Fig. 3: Checking Brake Booster Performance (2 Of 3) 
Courtesy of KIA MOTORS AMERICA, INC. 

3. With the engine running, step on the brake pedal and then stop the engine. 

Hold the pedal depressed for 30 seconds. If the pedal height does not change, the booster is in good 
condition, if the pedal rises, the booster is inoperative. If the above three tests are okay, the booster 
performance can be determined as good. 

Even if one of the above three tests is not okay, check the check valve, vacuum hose and booster for 
malfunction. 

Fig. 4: Checking Brake Booster Performance (3 Of 3) 
Courtesy of KIA MOTORS AMERICA, INC. 

VACUUM HOSE (CHECK VALVE) 

 

2008 Kia Sedona 

2008 BRAKES Brake System - Sedona

  

Microsoft 

 

Saturday, May 22, 2010 6:54:27 PM

Page 3 

© 2006 Mitchell Repair Information Company, LLC.