| SONATA(YF) >2012 > G 2.4 GDI > Engine Mechanical System > Cooling System > Water pump>Repair procedures |

Removal and Installation

1. | Loosen the drain plug, and then drain the engine coolant. Remove the radiator cap to drain with speed.

2. | Remove the drive belt (A) after turning the drive belt tensioner (B) counterclockwise.

3. | Remove the water pump pulley (A).

Tightening torque :
7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8~ 7.2 lb-ft)

4. | Remove the water pump (A) with the gasket.

Tightening torque :
18.6 ~ 23.5 N.m (1.9 ~ 2.4 kgf.m, 13.7 ~ 17.4 lb-ft)

5. | ULEV : Remove the exhaust manifold heat protector (A).

Tightening torque :
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

SULEV : Using the SST (09392-2H100) (A), remove the front oxygen sensor (B) and the remove the exhaust manifold heat protector (C).

Tightening torque
Oxygen sensor:
39.2~ 49.0 N.m (4.0 ~ 5.0 kgf.m, 28.9 ~ 36.2 lb-ft)
Heat protector bolts:
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

6. | Remove the water pump housing (A) with the gasket and the water inlet pipe (B).

Tightening torque :
Bolt (C) : 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
Bolt (D, E) : 18.6 ~ 23.5 N.m (1.9 ~ 2.4 kgf.m, 13.7 ~ 17.4 lb-ft)

7. | Installation is reverse order of removal with a new water pump gasket.

8. | Fill the engine coolant.

9. | Start the engine and check for leaks.

10. | Recheck the coolant level.

Inspection

1. | Check each part for cracks, damage or wear, and replace the coolant pump assembly if necessary.

2. | Check the bearing for damage, abnormal noise and sluggish rotation, and replace the coolant pump assembly if necessary.

3. | Check for coolant leakage. If coolant leaks from hole, the seal is defective. Replace the coolant pump assembly.

A small amount of "weeping" from the bleed hole is normal.