Avalanche 1500 2WD V8-5.3L (2008)
Catalytic Converter: Service and Repair
Catalytic Converter Replacement (1500 Series)
Catalytic Converter Replacement (1500 Series)
Removal Procedure
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the oil pan skid plate bolts and skid plate, if equipped.
3. Remove the transmission crossmember. Refer to Transmission Support Crossmember Replacement (4WD 2500 series) Transmission Support
Crossmember Replacement (2WD 1500 series) Transmission Support Crossmember Replacement (2WD 2500 series) Transmission Support
Crossmember Replacement (4WD 1500 series) .
4. Remove the right front connector position assurance (CPA) retainer (2).
5. Disconnect the right front heated oxygen sensor (HO2S) electrical connector from the engine wiring harness electrical connector (1).
6. Remove the right rear CPA retainer (4).
