Hyundai Santa Fe (DM): Thermostat. Repair procedures - Cooling System - Engine Mechanical SystemHyundai Santa Fe (DM): Thermostat. Repair procedures

Removal and Installation

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.
2.
Remove the radiator lower hose (A).

3.
Remove water inlet fitting (A), gasket (B) and thermostat (C).
Tightening torque :
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

4.
Install in the reverse order of removal.
Install the thermostat with the jiggle valve upward.
5.
Fill the engine coolant.
6.
Start the engine and check for leaks.
7.
Recheck the coolant level.

Inspection

1.
Immerse the thermostat in water and gradually heat the water.
2.
Check the valve opening temperature.
Valve opening temperature: 82°C (177°F)
Full opening temperature: 95°C (205°F)
If the valve opening temperature is not as specified, replace the thermostat.
3.
Check the valve lift.
Valve lift : 8 mm (0.3 in) or more at 95°C (205°F)
If the valve lift is not as specified, replace the thermostat.

Water Temperature Control Assembly. Repair procedures
Removal 1. Disconnect the battery negative terminal. 2. Loosen the drain plug and drain the engine coolant. 3. Remove the radiator upper hose and lower hose. 4. Disconnect the connectors and then remove ...

Thermostat. Troubleshooting
Troubleshooting Symptoms Possible Causes Remedy Coolant leakage • From the thermostat gasket Check the mounting bolts • Check the torque of the mounting bolts • Retighten the bolts and check leakage ...

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General Service Information
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