Kia Optima: Intake And Exhaust System / Intake Manifold

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

Components and components location
Components

1. Intake manifold assembly
2. Intake manifold gasket
3. Electronic throttle body
4. Intake 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.

Remove the air cleaner assembly.

(Refer to Intake and Exhaust System - "Air Cleaner")

4.

Remove the engine room under cover.

(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")

5.

Disconnect the wiring connectors and harness clamps and remove the wiring protector around the intake manifold.

6.

Disconnect the positive crankcase ventilation (PCV) hose (A).

7.

Disconnect the vacuum hose (A) and purge control solenoid valve (PCSV) hose (B).

8.

Unfasten the electric throttle body control (ETC) module bolts.

(Refer to Engine Control/Fuel System - "ETC (Electric throttle body control) System")

9.

Remove the intake manifold stay (A).

Tightening torque :

18.6 - 23.5 N•m (1.9 - 2.4 kgf•m, 13.7 - 17.4 lb•ft)

10.

Remove the intake manifold (A) with the gasket.

Tightening torque :

18.6 - 23.5 N•m (1.9 - 2.4 kgf•m, 13.7 - 17.4 lb•ft)

  

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.

11.

Install in the reverse order of removal.

Air Cleaner
Components and components location Components 1. Air duct 2. Air cleaner body 3. Air cleaner element 4. Air cleaner cover 5. Air intake hose ...

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) ...

Other information:

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