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 ( ...
See also:
Camshaft Position Sensor (CMPS). Description and Operation
Description
Camshaft Position Sensor (CMPS) is a hall sensor and detects
the camshaft position by using a hall element.It is related with Crankshaft Position Sensor (CKPS) and
detects the pisto ...
To Reset at a Slower Speed
1. Press the COAST/SET switch and hold it. While the switch is pressed, the vehicle
speed will gradually decrease.
2. When the desired speed is obtained, release the COAST/SET switch.
✽ N ...
Heater Unit. Repair procedures
Replacement
1.
Disconnect the negative (-) battery
terminal.
2.
Recover the refrigerant with
a recovery/ recycling/ charging station.
3.
When the e ...