Technical specifications (Hyundai Elantra J2)

Cooling system - Liquid, sealed, with forced circulation of liquid, with electric fan

Coolant - 6 liters

Radiator - Sealed with corrugated radiator fins

Radiator cap

• Main valve opening pressure - 81.4-108 kPa
• Vacuum valve opening pressure is 6.86 kPa or less

Coolant pump - Centrifugal type, vane

Thermostat - With paraffin filler and valve

This article is based on information from the website: hyundaibook

• Valve opening start temperature is 82°C
• Full valve opening temperature - 95°C

Drive belt - V-shaped with longitudinal ribs

Temperature Sensor - Thermistor Type Engine Coolant

Resistance

• 2.27-2.73 - kOhm at 20°C
• 290-354 - kOhm at 80°C

Thermal switch (on the radiator)

Operating temperature

• Off → On 85±3°C
• On → Off 78°C or higher

The normal concentration of antifreeze in the coolant is 50%

Tightening torques, Nm

Alternator Support Bolt and Nut	20-25
Alternator Adjuster Bar Bolt	15-22
Generator adjusting bar mounting bolt	20-28
Coolant pump pulley	8-10
Coolant temperature sensor	10-12
Coolant Temperature Switch Sensor	15-20
Coolant outlet pipe bolt	17-20
Thermostat housing bolt	15-20

Malfunctions

Sign	Possible cause	Method of elimination
Low coolant level	Coolant leak
	Heater or radiator hoses	Repair or replace parts
	Radiator cap malfunction	Tighten the clamps or replace them
	Thermostat housing	Replace the gasket or housing
	Radiator	Repair or replace
	Coolant pump	Replace the parts
Clogged radiator	Coolant contamination	Replace the coolant
Coolant temperature too high	Thermostat malfunction	Replace
	Radiator cap malfunction	Replace
	Restriction of liquid flow in the cooling system	Remove the restriction or replace the parts
	The drive belt is loose	Adjust or replace
	Coolant pump malfunction	Replace
	Temperature gauge or wiring faulty	Repair or replace
	Electric fan malfunction	Repair or replace
	Radiator thermal switch malfunction	Replace
	Insufficient amount of coolant	Top up the coolant
Coolant temperature too low	Thermostat malfunction	Replace
	Temperature gauge or wiring faulty	Repair or replace
The electric fan does not work	Damaged:
	Temperature sensor	Replace or repair
	Electric motor
	Radiator Fan Relay
	Wiring