Kia Picanto JA Quiz
Engine Mechanical System

Water Pump

In this manual: Engine Mechanical System
General Information — 8Maintenance — 30Engine Mechanical System — 46Engine Electrical System — 14Emission Control System — 11Engine Control System/Fuel System — 46Clutch System — 12Manual Transmission — 10Drive Shaft and Axle — 8Suspension System — 15Steering — 9Restraints — 17Brake System — 22Body (Interior and Exterior) — 104Body Electrical System — 80Heating, Ventilation, and Air Conditioning — 17
13steps
~78min
3/5difficulty
0102030405014.711N·mlb·ft
Tightening torque found on this page
Done 0 of 13

Repair Procedures

Removal and Installation

  1. Disconnect the negative battery cable.
  2. Remove the engine undercover and the right side cover. (Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")
  3. Drain the engine coolant. (Refer to Cooling System — Engine Coolant)
  4. Remove the drive belt. (Refer to Drive Belt System - "Drive Belt")
  5. Remove the water pump pulley (A).

    Tightening torque: 12.7–14.7 N·m

  6. Remove the drive belt tensioner. (Refer to Drive Belt System - "Drive Belt Tensioner")
  7. Remove the water pump (A) with gasket.

    Tightening torque: 19.6–26 N·m

  8. Install in the reverse order of removal.
  9. Fill the radiator with coolant. (Refer to Cooling System - Coolant)
  10. Start the engine and check for leaks.

Inspection

  1. Inspect each component for cracks, damage, or wear, and replace the water pump assembly if necessary.
  2. Inspect the bearing for damage, abnormal noise, and rough rotation, and replace the water pump assembly if necessary.
  3. Check for coolant leakage. If coolant leaks from the hole, the seal is damaged. Replace the water pump assembly and gasket.

Troubleshooting

Troubleshooting

Symptoms Possible Causes Remedy
Coolant Leakage
  • From the water pump drain hole
 Visually inspect
  • Check for leaks approximately 10 minutes after warming up the engine.
  • If coolant continues to leak, replace the water pump.
  • If the leak stops, reuse the water pump. (Do not replace the pump.)
  • From the gaskets or bolts
  • Check the tightening torque of the water pump mounting bolts.
  • Tighten the mounting bolts.
  • Check for damaged gaskets or dust intrusion.
  • Replace the gasket and clean off any dust.
  • From the outer surface of the water pump
  • Check the water pump for material defects or cracks.
  • Replace the water pump if material defects or cracks are found.
Noise
  • From the bearings
  • From the mechanical seals
  • Impeller interference
 Inspection using a stethoscope
  • After starting the engine, check for 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 repeat the check.
Inspection after drive belt removal
  • After removing the water pump and drive belt, check the noise again.
  • If there is noise, reuse the water pump. Check the other propeller shaft components.
  • If there is no noise, replace the water pump with a new one.
Check after water pump removal
  • After removing the water pump and drive belt, check the noise again.
  • If there is interference between them, replace the water pump with a new one.
Overheating
  • Damaged impeller
  • Loose impeller
 Loose impeller
  • Impeller vanes corroded
  • Check the engine coolant.
  • Poor coolant quality / maintenance
  • Impeller separated from shaft
  • Replace the water pump.

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