Kia Optima: Intake Manifold. Repair procedures
Removal and Installation
| 1. |
Remove the engine cover. |
| 2. |
Disconnect the battery negative
terminal (A).
Tightening torque4.0 ~
6.0N.m (0.4 ~ 0.6kgf.m, 3.0 ~ 4.4lb-ft)
|
|
| 3. |
Remove the air duct (B).

|
| 4. |
Remove the air cleaner assembly.
| (1) |
Disconnect the breather
hose (A), the recirculation hose (B) and brake booster vacuum hose
(C). |
| (2) |
Disconnect the air intake
hose (D) and then remove the air cleaner assembly (E).
Tightening torque
Hose clamp bolt:
2.9 ~ 4.9N.m (0.3 ~ 0.5kgf.m, 2.2 ~ 3.6lb-ft)
Air cleaner assembly bolts:
7.8 ~ 9.8N.m (0.8 ~ 1.0kgf.m, 5.8 ~ 7.2lb-ft)
|

|
|
| 5. |
Remove the under covers. (Refer
to Engine and transaxle assembly in this group) |
| 6. |
Loosen the drain plug, and drain
the engine coolant. Remove the radiator cap to drain with speed. (Refer
to Cooling system in this group) |
| 7. |
Disconnect the PCV hose (A),
the intake OCV (Oil control valve) connector (B) and the OTS (Oil temperature
sensor) connector (C)

|
| 8. |
Disconnect the A/C compressor
switch connector (A), the alternator connector (B), the OPS (Oil pressure
switch) connector & injector extension connector (C), the knock sensor connector
(D), the MAPS (Manifold absolute pressure sensor) & IATS (Intake air temperature
sensor) connector (E), the ETC (Electronic throttle control) connector (F)
and the vacuum pump connector (G).

|
| 9. |
Disconnect the throttle body
coolant hoses (A).

|
| 10. |
Remove the oil level gauge (A).

|
| 11. |
Remove the intake manifold stay
(A).
Tightening torque :18.6
~ 23.5N.m (1.9 ~ 2.4kgf.m, 13.7 ~ 17.4lb-ft)
|

|
| 12. |
Remove the intake manifold (A)
after disconnecting the vacuum hoses.
Tightening torque :18.6
~ 23.5N.m (1.9 ~ 2.4kgf.m, 13.7 ~ 17.4lb-ft)
|

|
When installing, replace with new gaskets. |
When installing the intake manifold, tighten the bolts and nuts with pre-torque
first, and then tighten the bolts and nuts with specified torque in the
sequence shown.

|
| 13. |
Installation is reverse order
of removal. |
Components
1. Intake manifold assembly
2. Electronic throttle body
3. Intake manifold stay
4. Intake manifold gasket
...
Components
1. Hear protector
2. EWGA(Electric Waste Gate Actuator)
3. C-ring
4. Turbo manifold module
5. Turbocharger stay
6. Trubo adapter gasket
7. Turbo ad ...
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