Kia Cadenza: Intake And Exhaust System / Exhaust Manifold Repair procedures

Kia Cadenza YG 2016-2025 Service Manual / Engine Mechanical System / Intake And Exhaust System / Exhaust Manifold Repair procedures

Removal and Installation

[LH]

1.	Disconnect the LH front and rear heated oxygen sensor (HO2S) connector. (Refer to Fuel System - "Heated Oxygen Sensor (HO2S)")

2.	Remove the front muffler. (Refer to Intake And Exhaust System - "Muffler")

3.	Remove the cooling fan assembly. (Refer to Cooling System - "Cooling Fan")

4.	Remove oil level gauge assembly. (Refer to Lubrication System - "Oil Level Gauge & Pipe")

Remove the LH exhaust manifold heat protector (A).

Tightening torque :

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

Remove the LH exhaust manifolds stay (A),and then remove the LH exhaust manifold (B) and gasket.

Tightening torque

Stay bolt :

24.5 ~ 35.3N.m (2.5 ~ 3.6kgf.m, 18.1 ~ 26.0lb-ft)

Manifold nuts :

49.0 ~ 53.9N.m (5.0 ~ 5.5kgf.m, 36.2 ~ 39.8lb-ft)

Install in the reverse order of removal.

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

[RH]

1.	Disconnect the RH front and rear heated oxygen sensor (HO2S) connector. (Refer to Fuel System - "Heated Oxygen Sensor (HO2S)")

2.	Remove the surge tank. (Refer to Intake And Exhaust System - "Surge Tank")

3.	Remove the front muffler. (Refer to Intake And Exhaust System - "Muffler")

Remove the RH exhaust manifold heat protector (A).

Tightening torque :

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

Remove the RH exhaust manifolds stay (A),and then remove the RH exhaust manifold (B) and gasket.

Tightening torque

Stay bolt :

24.5 ~ 35.3N.m (2.5 ~ 3.6kgf.m, 18.1 ~ 26.0lb-ft)

Manifold nuts :

49.0 ~ 53.9N.m (5.0 ~ 5.5kgf.m, 36.2 ~ 39.8lb-ft)

Install in the reverse order of removal.

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

Exhaust Manifold Components and Components Location

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