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Hyundai Azera: Thermostat Repair procedures - Cooling System - Engine Mechanical System - Hyundai Azera 2011-2025 Service ManualHyundai Azera: Thermostat Repair procedures

Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Service Manual / Engine Mechanical System / Cooling System / Thermostat Repair procedures

Removal
   
Removal of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. Do not remove the thermostat, even if the engine tends to overheat.
1.
Drain engine coolant so its level is below thermostat.
(Refer to Cooling System - "Coolant")
2.
Remove the ratiator upper hose.
(Refer to Cooling System - "Radiator Hose")
3.
Remove the water inlet fitting (A) and the thermostat (B).

Inspection
1.
Immerse the thermostat in water and gradually heat the water.

2.
Check the valve opening temperature.
Valve opening temperature:
88±2°C (109.4±3.6°F)
Full opening temperature: 100°C (212°F)
If the valve opening temperature is not as specified, replace the thermostat.
3.
Check the valve lift.
Valve lift : 10mm (0.3937in.) or more at 95°C (203°F)
If the valve lift is not as specified, replace the thermostat.
Installation
1.
Place the thermostat in thermostat housing.
(1)
Install the thermostat with the jiggle valve upward.
(2)
Install a new thermostat (B).

2.
Install the water inlet fitting (A).
Tightening torque :
9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft)
3.
Install the ratiator upper hose.
(Refer to Cooling System - "Radiator Hose")
4.
Fill with engine coolant.
5.
Start engine and check for leaks.
Thermostat Components and Components Location
Components 1. Water temperature control assembly2. Thermostat3. Water inlet fitting ...

Thermostat Troubleshooting
Troubleshooting SymptomsPossible CausesRemedyCoolant leakage • From the thermostat gasket Check the mounting bolts • Check the torque of the mounting bolts • Retighten the bo ...

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