Engine Cooling System - 3.8L: Removal & Installation Hyundai Genesis I рестайлинг

Replacement And Air Bleeding

Note. When pouring engine coolant, be sure to shut the relay box lid and not to let coolant spill on the electrical parts or the paint. If any coolant spills, rinse it off immediately.

1. Make sure the engine and radiator are cool to the touch.
2. Remove the radiator cap.
3. Loosen the drain plug, and drain the coolant.
4. Tighten the radiator drain plug securely.
5. Remove, drain and reinstall the reservoir. Fill the tank halfway to the MAX mark with water, then up to the MAX mark with antifreeze.
6. Fill the radiator with water through the radiator cap and tighten the cap. NOTE: To most effectively bleed the air, pour the water slowly and press on the upper/lower radiator hoses.
7. Start the engine and allow to come to normal operating temperature. Wait for the cooling fans to turn on several times. Accelerate the engine to aid in purging trapped air. Shut engine off.
8. Wait until the engine is cool.
9. Repeat steps 1 to 8 until the drained water runs clear.
10. Fill fluid mixture with coolant and water (55~60%) (except for North America, Europe and China: 45~50%) slowly through the radiator cap. Push the upper/lower hoses of the radiator so as bleed air easily. NOTE: Use only genuine antifreeze/coolant. For best corrosion protection, the coolant concentration must be maintained year-round at 55% (except for North America, Europe and China: 45%) minimum. Coolant concentrations less than 55% (except for North America, Europe and China: 45%) may not provide sufficient protection against corrosion or freezing. Coolant concentrations greater then 60% will impair cooling efficiency and are not recommended. CAUTION: Do not mix different brands of antifreeze/coolants. Do not use additional rust inhibitors or antirust products; they may not be compatible with the coolant.
11. Start the engine and run coolant circulates.
12. When the cooling fan operates and coolant circulates, refill coolant through the radiator cap.
13. Repeat step 11 until the cooling fan 3 ~ 5times and bleed air sufficiently out of the cooling system.
14. Install the radiator cap and fill the reservoir tank to the "MAX" line with coolant.
15. Run the vehicle under idle until the cooling fan operates 2 ~ 3 times.
16. Stop the engine and wait coolant gets cool.
17. Repeat 10 to 15 until the coolant level doesn't fall any more, bleed air out of the cooling system. NOTE: As it is to bleed air out to the cooling system and refill coolant when coolant gets cool completely, recheck the coolant level in the reservoir tank for 2 ~ 3 days after replacing coolant. Coolant capacity: 8.4 ~ 8.6L (8.9 ~ 9.1Us.qts, 7.4 ~7.6 lmp.qts, 2.21 ~ 2.27 US.gal)

Scheme 51

Scheme 52

1. Remove the radiator cap, wet its seal with engine coolant, then install it to pressure tester.
2. Apply a pressure of 93 ~ 123kPa (0.95 ~ 1.25kgf/cm 2 , 14 ~ 19psi).
3. Check for a drop in pressure.
4. If the pressure drops, replace the cap.

Scheme 53

1. Wait until engine is cool, then carefully remove the radiator cap and fill the radiator with engine coolant, then install a pressure tester on it.
2. Apply a pressure of 93 ~ 123kPa (0.95 ~ 1.25kgf/cm 2 , 14 ~ 19psi).
3. Inspect for engine coolant leaks and a drop in pressure.
4. If the pressure drops, check hoses, the radiator and the water pump for leakage. If there is no leakage, inspect the heater core, the cylinder block and the cylinder head.
5. Remove the tester and reinstall the radiator cap. NOTE: Check for engine oil in coolant and/or coolant in engine oil.

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1. Disconnect the battery negative cable
2. Loosen the drain plug and drain the engine coolant.
3. Remove the air duct (A).
4. Remove the radiator upper hose (A) and lower hose (B).
5. Disconnect the ATF cooler hoses (A).
6. Disconnect the fan motor connector (A).
7. Remove the radiator & condenser mounting bolt (B).
8. Remove the radiator & cooling fan assembly from the vehicle.
9. Installation is reverse order of removal. Fill the radiator with coolant and check for leaks.

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Scheme 63

1. Loosen the drain plug, and drain the engine coolant. CAUTION: Never remove the radiator cap when the engine is hot. Serious scalding could be caused by hot fluid under high pressure escaping from the radiator.
2. Turn the tensioner counterclockwise and loosen then remove the drive belt (A).
3. Remove the water pump pulley (A).
4. Remove the water pump (A) and the gaskets (B).

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Scheme 69

1. Disconnect the battery negative cable.
2. Loosen the drain plug and drain the engine coolant.
3. Remove the intake air hose and air cleaner assembly. (Refer to «INTAKE AND EXHAUST SYSTEM»(ref-590357-S13490933172013121700000) ).
4. Remove the radiator upper hose (A).
5. Disconnect the heater hoses (A).
6. Remove the surge tank. (Refer to Intake and exhaust system in this group)
7. Remove the oil level gauge (A) and the water inlet pipe & hose (B).
8. Remove the water outlet pipe (A).
9. Remove the water temperature control assembly (A) and the gaskets.

Removal

Note. 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.

Scheme 70

1. Drain engine coolant so its level is below thermostat.
2. Remove the water inlet fitting (A) and the thermostat (B).

Scheme 71

1. Immerse the thermostat in water and gradually heat the water.
2. Check the valve opening temperature. Valve opening temperature: 82 ± 1.5°C (179.6 ± 2.7°F) Full opening temperature: 95°C (203°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.

Scheme 72

1. Place the thermostat in thermostat housing. Install the thermostat with the jiggle valve upward. Install a new thermostat (B).
2. Install the water inlet fitting (A). Tightening torque: 16.7 ~ 19.6N.m (1.7 ~ 2.0kgf.m, 12.3 ~ 14.5lb-ft)
3. Fill with engine coolant.
4. Start engine and check for leaks.