Kia Optima: Removal and Installation
Disassembly 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. |
Disconnect the radiator lower
hose (A).

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

|
4. |
Installation is reverse order
of removal.
•
|
Install the thermostat
with the jiggle valve upward. |
•
|
When assembling
the thermostat, place the thermostat on the housing with
a protrusion of thermostat matching with a groove of the
housing and install the gasket and inlet fitting. Be careful
the thermostat doesn’t get out of the groove on the housing. |
|
|
5. |
Fill the engine coolant. |
6. |
Start the engine and check for
leaks. |
7. |
Recheck the coolant level. |
1.
Immerse the thermostat in water
and gradually heat the water.
2.
Check the valve opening temperature.
Valve opening temperature:
82 ± 1.5°C (17 ...
See also:
Dome Light Bulb Replacement
WARNING
Prior to working on the Dome Light, ensure that the “OFF” button is depressed
to avoid burning your fingers or receiving an electric shock.
1. Using a flat-blade screwdriver, gently ...
Repair procedures
If the there is lack of power, excessive oil consumption or poor fuel economy,
measure the compression pressure.
1.
W ...
Owner maintenance precautions
Improper or incomplete service may
result in problems. This section gives
instructions only for the maintenance
items that are easy to perform.
As explained earlier in this section, several
p ...