Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Cooling System / Water pump

- Components

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


- Removal and Installation

   

• Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift.(Refer to General Information - "Lift and Support Points")

1.Disconnect the negative battery terminal.

2.Remove the engine room under cover.(Refer to the Engine And Transaxle Assembly - "Engine Room Under Cover")

3.Drain engine coolant by loosening the drain plug.(Refer to the Cooling System - "Coolant")

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

5.Disconnect the water temperature sensor connector (A).

6.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)

7.Remove the water pump (A).

Tightening torque :9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

8.Remove the water pump housing (A) together with the gasket.

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

9.Install in the reverse order of removal.

   

• Always use the new gasket.

• Always use the new water inlet pipe O-ring.

• When installing the water pump, apply anti-freeze or soapy water to O-ring.

10.Fill engine coolant.(Refer to the Cooling System - "Coolant")

   

• Be sure to fill coolant following the ITM coolant filling method.

11.Check the coolant leakage by starting up the engine.

12.Recheck the coolant level.

- Troubleshooting
SymptomsPossible CausesRemedy
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.

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