Kia Cee'd: Cooling System / Water pump Troubleshooting

Kia Cee'd JD Service Manual / Engine Mechanical System / Cooling System / Water pump Troubleshooting

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.

Water pump Repair procedures

Removal 1. Loosen the drain plug (A), and drain the engine coolant. Remove the radiator cap to drain with speed. ...

Thermostat Components and components location

Components 1. Water inlet fitting 2. Thermostat ...

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