Kia Optima: Intake And Exhaust System / Exhaust Manifold

Kia Optima DL3 2019-2021 Service and Repair Manual / Engine Mechanical System / Intake And Exhaust System / Exhaust Manifold

Components and components location

Components

1. Heat protector
2. Exhaust manifold gasket

3. Exhaust manifold
4. Exhaust manifold stay

Repair procedures

Removal and Installation

1.	Remove the engine cover. (Refer to Engine and Transaxle Assembly - “Engine Cover”)

2.	Disconnect the battery negative terminal.

3.	Disconnect the front and heated oxygen sensor connect (A) and remove them from the bracket.

4.	Remove the engine room under cover. (Refer to Engine and Transaxle Assembly - “Engine Room Under Cover”)

5.	Remove the front muffler. (Refer to Intake and Exhaust System - "Muffler")

Remove the exhaust manifold heat protector (A).

Tightening torque :

9.8 - 11.8 N•m (1.0 - 1.2 kgf•m, 7.2 - 8.7 lb•ft)

Remove the exhaust manifold stay (A).

Tightening torque :

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

Remove the exhaust manifold (A).

Tightening torque :

29.4 - 34.3 N•m (3.0 - 3.5 kgf•m, 21.7 - 25.3 lb•ft)

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

Remove the exhaust manifold gasket (A).

When installing, replace with a new gasket.

10.	Install in the reverse order of removal.

Variable Intake Solenoid(VIS) Actuator

Repair procedures Removal and Installation 1. Disconnect the vacuum hose (A). 2. Remove the variable Intake solenoid (VIS) actuator (B) ...

Muffler

Components and components location Components 1. Front muffler 2. Catalytic converter & Center muffler assembly 3. Rear muffler 4. Gasket 5. Hanger ...

Other information:

Kia Optima DL3 2019-2021 Owner's Manual: Larger children

Children who are too large for child restraint systems should always occupy the rear seat and use the available lap/shoulder belts. The lap portion should be fastened and snugged on the hips as low as possible. Check periodically to insure that the belt fits. A child's squirming could put the ...

Kia Optima DL3 2019-2021 Owner's Manual: Changing a tire with TPMS

If you have a flat tire, the Low Tire Pressure telltale will come on. Have the flat tire repaired by an authorized Kia dealer as soon as possible or replace the flat tire with the spare tire. CAUTION - Repair Agents Never use a puncture-repairing agent not approved by Kia to repair and/or in ...