Sierra 2500 Denali 2WD V8-6.0L (2011)
Catalytic Converter: Service and Repair
Catalytic Converter Replacement (L96 with ZW9)
Catalytic Converter Replacement (L96 with ZW9)
Removal Procedure
Warning: Refer to Exhaust Service Warning (See: Engine, Cooling and Exhaust/Exhaust System/Service Precautions).
Warning: Refer to Hot Exhaust System Warning (See: Service Precautions/Technician Safety Information/Hot Exhaust System Warning).
1. Disconnect the heated oxygen sensor (HO2S). Refer to the following:
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Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series - Cab/Chassis) (See: Computers and Control Systems/Oxygen
Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series) (See: Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (1500 Series) (See: Computers and
Control Systems/Oxygen Sensor/Service and Repair)
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Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (2500 Series - Cab/Chassis) (See: Computers and Control Systems/Oxygen
Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (2500 Series) (See: Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (1500 Series) (See: Computers and
Control Systems/Oxygen Sensor/Service and Repair)
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Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (2500 Series - Cab/Chassis) (See: Computers and Control Systems/Oxygen
Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (2500 Series) (See: Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series) (See: Computers and
Control Systems/Oxygen Sensor/Service and Repair)
*
Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (2500 Series - Cab/Chassis) (See: Computers and Control Systems/Oxygen
Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (2500 Series) (See: Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (1500 Series) (See: Computers and
Control Systems/Oxygen Sensor/Service and Repair)
2. Support the transmission with a suitable transmission jack.
3. Remove the transmission support crossmember. Refer to Transmission Support Crossmember Replacement (2WD 1500 Series) (See: Body and
Frame/Frame/Cross-Member/Service and Repair/Transmission Support Crossmember Replacement (2WD 1500 Series))Transmission Support
Crossmember Replacement (4WD 1500 Series) (See: Body and Frame/Frame/Cross-Member/Service and Repair/Transmission Support
Crossmember Replacement (4WD 1500 Series))Transmission Support Crossmember Replacement (2WD 2500/3500 Series) (See: Body and
Frame/Frame/Cross-Member/Service and Repair/Transmission Support Crossmember Replacement (2WD 2500/3500 Series))Transmission
Support Crossmember Replacement (4WD 2500/3500 Series) (See: Body and Frame/Frame/Cross-Member/Service and Repair/Transmission
Support Crossmember Replacement (4WD 2500/3500 Series))
4. Remove the exhaust muffler nuts (1) from the catalytic converter (3).
