Kia Optima: Inspection
Radiator Cap Testing
1. |
Remove the radiator cap, wet
its seal with engine coolant, and then install it on a pressure tester.

|
2. |
Apply a pressure of 93.16 ~ 122.58kPa
(0.95 ~ 1.25kgf/cm², 13.51 ~ 17.78psi). |
3. |
Check for a drop in pressure.
|
4. |
If the pressure drops, replace
the cap. |
Radiator Leakage Test
1. |
Wait until engine is cool, then
carefully remove the radiator cap and fill the radiator with engine coolant,
then install it on the pressure tester. |
2. |
Apply a pressure tester to the
radiator and apply a pressure of 93.16 ~ 122.58kPa (0.95 ~ 1.25kgf/cm²,
13.51 ~ 17.78psi).

|
3. |
Inspect for engine coolant leaks
and a drop in pressure. |
4. |
Remove the tester and reinstall
the radiator cap.
Check for engine oil in the coolant and/or coolant in the engine
oil. |
|
1.
Disconnect the battery terminals.
(Refer to Engine and transaxle assembly in this group)
2.
Remove the air cleaner assembly
and the intercooler inlet/outlet hoses. ...
Components
1. Water pump pulley
2. Water pump sub assembly
3. Water pump gasket
4. Water pump cover
5. Water pump cover gasket
6. O-ring
7. Water inle ...
See also:
Evaporator Temperature Sensor Description and Operation
Description
The evaporator temperature sensor will detect the evaporator
core temperature and interrupt compressor relay power in order to
prevent evaporator freezing by excessive cooling ...
Removal
1.
Turn ignition switch OFF and
disconnect the negative (-) battery cable.
2.
Remove the air duct (B) and air
cleaner assembly (A).
3.
Disconn ...
Removal
1.
Turn the ignition switch OFF and disconnect the battery
negative (-) cable.
2.
Remove the RCV control solenoid valve (A) after disconnect
the connector, ...