Hyundai Sonata 1991 Shop Manual page 111

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1.
Disconnect the fan motor plug.
2.
Set the warm water flow control lever of the heater control
to the hot position.
3.
Loosen the radiator drain plug to drain the coolant.
4.
Disconnect the upper and lower hoses and overflow tube
after making marks on the radiator hose and the hose clamp.
5.
For vehicles with an automatic transaxle, disconnect the oil
cooler hoses from the automatic transaxle.
REMOVAL
RADIATOR
Y25EAOA
CAUTION
Cover or plug the hose and nipple part of the radiator so
that dust, foreign materials, etc. do not enter after the
hose has been disconnected from the radiator.
6.
Remove the radiator mounting bolt.
7.
Remove the radiator together with the fan motor.
8.
Remove the fan motor from the radiator.
25Y011
INSPECTION
Y25EBOA
1.
Check for foreign material between radiator fins.
2.
Check the radiator fins for damage and straighten if
necessary.
3.
Check the radiator for corrosion, damage, rust or scale.
4.
Check the radiator hoses for cracks, damage or deterioration.
5.
Check the reserve tank for damage.
6.
Check the automatic transaxle oil cooler hoses for cracking,
damage or deterioration.
INSTALLATION
Y25ECOA
1.
Fill the radiator and reserve tank with clean coolant mixture.
2.
Run the engine until the coolant has warmed up enough so
that the thermostat valve opens, and then stop the engine.
3.
Remove the radiator cap and pour in the coolant until it is
up to the filler neck of the radiator. Fill the reserve tank to the
upper level.
4.
Check to be sure that there is no leakage from the radiator,
hoses or connections.
25-11

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