Tahoe 4WD V8-6.2L (2009)
Catalytic Converter: Service and Repair
Catalytic Converter Replacement
Catalytic Converter Replacement
Removal Procedure
Warning: Refer to Protective Goggles and Glove Warning (See: Service Precautions/Technician Safety Information/Protective Goggles and Glove
Warning).
Warning: Refer to Exhaust Service Warning (See: Engine, Cooling and Exhaust/Exhaust System/Service Precautions).
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair).
2. Remove the oil pan skid plate , if equipped. Refer to Oil Pan Skid Plate Replacement (2500/2500 with RPO NZZ) (See: Body and
Frame/Frame/Skid Plate/Service and Repair/Oil Pan Skid Plate Replacement (2500/2500 with RPO NZZ))Oil Pan Skid Plate Replacement (1500
with RPO NZZ) (See: Body and Frame/Frame/Skid Plate/Service and Repair/Oil Pan Skid Plate Replacement (1500 with RPO NZZ)).
3. Remove the transmission crossmember. Refer to Transmission Support Crossmember Replacement (4WD 2500 Series) (See: Body and
Frame/Frame/Cross-Member/Service and Repair/Transmission Support Crossmember Replacement (4WD 2500 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 Series) ()Transmission Support
Crossmember Replacement (2WD 1500 Series) ().
4. If replacing the three way catalytic converter remove the heated oxygen (HO2S) sensors (1 -5) otherwise disconnect the heated oxygen (HO2S)
sensors harness connectors. Refer to Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (See: Computers and Control Systems/Oxygen
Sensor/Service and Repair) , Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (See: Computers and Control Systems/Oxygen
Sensor/Service and Repair) , Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (See: Computers and Control Systems/Oxygen
Sensor/Service and Repair) and Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (See: Computers and Control Systems/Oxygen
Sensor/Service and Repair).
