Kia Sorento: Catalytic Converter Removal and Installation

Kia Sorento (MQ4, 2021-2026) Service Manual / Emission Control System / Exhaust Emission Control System / Catalytic Converter Removal and Installation

Removal

Work only when the engine and the exhaust system are cool to avoid getting burn injury.

1.	Remove the front Heated Oxygen Sensor (HO2S). (Refer to Engine Control System - "Heated Oxygen Sensor (HO2S)")

2.	Disconnect the connectors (A, B, C). A: Rear Heated Oxygen Sensor (HO2S). B: Exhaust Gas Temperature Sensor (EGTS) C: Gasoline Particulate Filter (GPF) pressure sensor

Separate the wiring bracket (A) after removing the bolts.

Tightening torque :

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

Emission Control System — Exhaust Emission Control System / Catalytic Converter / Removal and Installation / Removal illustration

Remove the heat protector (A) after removing the bolts.

Tightening torque :

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

Emission Control System — Exhaust Emission Control System / Catalytic Converter / Removal and Installation / Removal illustration

Separate the Exhaust Gas Recirculation (EGR) cooler pipe (A) after removing the nuts.

Tightening torque :

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

Emission Control System — Exhaust Emission Control System / Catalytic Converter / Removal and Installation / Removal illustration

Remove the heat protector (A) after removing the nuts.

Tightening torque :

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

Emission Control System — Exhaust Emission Control System / Catalytic Converter / Removal and Installation / Removal illustration

7.	Remove the front subframe. (Refer to Suspension System - "Front Sub frame")

8.	Remove the front muffler. (Refer to Engine Mechanical System - "Muffler")

Remove the EGR cooler pipe (A) after removing the bolts.

Tightening torque :

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

Emission Control System — Exhaust Emission Control System / Catalytic Converter / Removal and Installation / Removal illustration

10.

Separate the Warm-up Catalytic Converter (WCC) (A) after removing the nuts.

Tightening torque :

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

Emission Control System — Exhaust Emission Control System / Catalytic Converter / Removal and Installation / Removal illustration

11.

Remove the WCC lower stay (A) and WCC (B) after removing the bolts.

Tightening torque :

52.0 - 57.9 N·m (5.3 - 5.9 kgf·m, 38.3 - 42.7 lb·ft)

Emission Control System — Exhaust Emission Control System / Catalytic Converter / Removal and Installation / Removal illustration

Installation

Install in the reverse of removal.

•	Install Warm-Up Catalytic Converter (WCC) to the specified torque.

•	If the WCC is dropped, it may cause internal damage (Do not reuse).

•	When installing, replace with new gaskets.

Description and Operation

Description • The catalytic converter of the gasoline engine is a three way catalyst. It oxidizes carbon monoxide and hyd...

Electrical Exhaust Gas Recirculation (E-EGR) Valve Specifications. Electrical Exhaust Gas Recirculation (E-EGR) Valve Description and Operation

Electrical Exhaust Gas Recirculation (E-EGR) Valve Specifications Specification [Motor] Item Specification ...

Kia Sorento: Catalytic Converter Removal and Installation

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