Kia Optima Hybrid: Intake And Exhaust System / Exhaust Manifold Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Mechanical System / Intake And Exhaust System / Exhaust Manifold Repair procedures

Removal and Installation

1.	Remove the engine cover.

Disconnect the battery negative terminal.

Tightening torque:

4.0 ~ 6.0N.m (0.4 ~ 0.6kgf.m, 3.0 ~ 4.4lb-ft)

3.	Disconnect the oxygen sensor connectors (A).

Remove the front muffler (A).

Tightening torque:

39.2 ~ 58.8 N.m (4.0 ~ 6.0 kgf.m, 28.9 ~ 43.4 lb-ft)

Using the SST (09392-2H100) (A), remove the front oxygen sensor (B) and the remove the exhaust manifold heat protector (C).

Tightening torque :

Oxygen sensor :

39.2 ~ 49.0 N.m (4.0 ~ 5.0 kgf.m, 28.9 ~ 36.2lb-ft)

Heat protector bolts :

7.8 ~ 11.8N.m (0.8 ~ 1.2kgf.m, 5.8 ~ 8.7lb-ft)

6.	Remove the driveshaft heat protector (A).

Remove the exhaust manifold stay (A).

Tightening torque :

M8 bolts: 18.6 ~ 27.5N.m (1.9 ~ 2.8kgf.m, 13.7 ~ 20.3lb-ft)

M10 bolts: 51.9 ~ 57.8.m (5.3 ~ 5.9kgf.m, 38.3 ~ 42.6lb-ft)

8.	Remove the engine hanger and cam position sensor cover (A).

Remove the exhaust manifold (A) with the gasket (B).

Tightening torque

49.0 ~ 53.9N.m (5.0 ~ 5.5kgf.m, 36.2 ~ 39.7lb-ft)

When installing, replace with a new gasket.

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

10.	Installation is reverse order of removal.

Exhaust Manifold Components and Components Location

Components 1. Heat protector2. Exhaust manifold3. Exhaust manifold gasket4. Exhaust manifold stay ...

Muffler Components and Components Location

Components 1. Front muffler2. Catalytic converter3. Center muffler4. Main muffler5. Gasket6. Hanger ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Balance Shaft & Oil Pump Components and Components Location

Components 1. Balance shaft & oil pump assembly2. Balance shaft chain tensioner3. Balance shaft chain4. Balance shaft chain sprocket5. Balance shaft chain guide6. Balance shaft chain tensioner arm7. Oil cooler8. Oil filter ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Components and Components Location

Components Location 1. PCV valve2. Canister3. Purge control solenoid valve (PCSV)4. Fuel tank pressure sensor (FTPS)5. NVLD (Natural Vaccum Leakage Detection) Module6. Fuel level sender (FLS)7. Canister Close Valve (CCV)8. Fuel tank air filter9. Catalytic converter10. Auxiliary canister 1. PCV Valve2. ...