Kia Stinger CK: Cooling System / Water pump

Kia Stinger (CK) 2018-2023 Service Manual / Engine Mechanical System / Cooling System / Water pump

Components and components location

Components

1. Water pump pulley
2. Water pump sub assembly
3. Water pump gasket
4. Water pump housing

5. Water pump housing gasket
6. Water inlet pipe gasket
7. Heater & bypass pipe

Repair procedures

Removal and Installation

1.	Remove the engine room front under cover. (Refer to Engine and Transmission Assembly - "Engine Room Under Cover")

2.	Drain the coolant. (Refer to Cooling System - "Coolant")

3.	Remove the water pump belt. (Refer to Drive Belt System - "Drive Belt")

4.	Remove the electric thermostat (ECT). (Refer to Cooling System - "Electric Thermostat (ECT)")

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)

Remove the water pump sub assembly (A) with gasket.

Tightening torque :

18.6 - 23.5 N·m (1.9 - 2.4 kgf·m, 13.7 - 17.4 lb·ft)

7.	Disconnect the turbocharger water feed hose (A).

Remove the heater & bypass pipe mounting nuts (A).

Tightening torque :

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

Remove the water pump housing (A) with gasket.

Tightening torque :

18.6 - 23.5 N·m (1.9 - 2.4 kgf·m, 13.7 - 17.4 lb·ft)

10.	Disconnect the heater hoses (A).

11.	Disconnect the bypass hose (A).

12.	Remove the heater & bypass pipe (A).

13.	Install the other parts in the reverse order of removal.

14.	Fill the coolant. (Refer to Cooling system - "Coolant")

15.	Start engine and check for leaks.

16.	Recheck engine 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.

Check for coolant leakage. If coolant leaks from hole, the seal is defective.

Replace the coolant pump assembly.

A small amount of seepage from the bleed hole is normal.

Troubleshooting

Symptoms

Possible Causes

Remedy

Coolant leakage

•	From the bleed hole of the water pump

Visually check

•	Check leaks after about ten-minute warming up.

•	If coolant still leaks, replace a water pump.

•	If leakage stops, reuse the water pump (Do not replace the pump with a new one).

•	From gaskets or bolts

•	Check the tightening of the water pump mounting bolts.

•	Retighten the mounting bolts.

•	Check damage of gaskets or inflow of dust.

•	Replace the gasket and clean dust off.

•	From outer surface of water pump

•	Check the material or any cracks of the water pump.

•	Poor material. If any crack found, replace the water pump.

Noise

•	From bearings

•	From mechanical seals

•	Impeller interference

Inspection with a stethoscope

•	After starting the engine, check noise with a stethoscope.

•	If there is no noise, reuse the water pump(do not replace it).

•	If there is any noise from the water pump, remove the drive belt and recheck.

Inspection after removing a drive belt

•	After removing a water pump and a drive belt, check noise again.

•	If there is noise, reuse the water pump. Check other drive line parts.

•	If there is no noise, replace the water pump with a new one.

Inspection after removing a water pump

•	After removing a water pump and a drive belt, check noise again.

•	If there is any interference between them, replace the water pump with a new one.

Overheating

•	Damaged impeller

•	Loosened impeller

Loosened impeller

•	Corrosion of the impeller wing

•	Check engine coolant.

•	Poor coolant quality / Maintenance check

•	Impeller seperation from the shaft

•	Replace the water pump.

Other information:

Kia Stinger (CK) 2018-2023 Service Manual: Steering Gear box

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Kia Stinger (CK) 2018-2023 Service Manual: Driveshaft and axle

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Kia Stinger CK: Cooling System / Water pump

Components and components location

Repair procedures

Troubleshooting

Electric Thermostat (ECT)

Cylinder Block

Other information:

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