Removal Procedure

WARNING: Refer to Exhaust Service Warning .

WARNING: Refer to Protective Goggles and Glove Warning .

CAUTION: Do not bend the exhaust flex pipe more than 10 degrees in any direction. Bending of more than 10 degrees or twisting in a range of ±0.5 degrees will damage the exhaust flex decoupler.

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Remove the front compartment insulator. Refer to Front Compartment Insulator Replacement .
Remove the exhaust temperature sensor - position 3. Refer to Exhaust Temperature Sensor Replacement - Position 3 .
Remove the emission reduction fluid injector. Refer to Emission Reduction Fluid Injector Replacement .
Remove and DISCARD the 3 oxidation catalytic converter to the three way catalytic converter nuts (2).

Fig 1: Three Way Catalytic Converter And Nuts
Courtesy of GENERAL MOTORS COMPANY
Remove the three way catalytic converter (1) from the oxidation catalytic converter (3).
Remove and DISCARD the gasket (4).
Support the three way catalytic converter (3).

Fig 2: Three Way Catalytic Converter
Courtesy of GENERAL MOTORS COMPANY

NOTE: A second technician is required.
Remove and DISCARD the 2 three way catalytic converter to the exhaust pipe nuts (1).
Remove and DISCARD the gasket (2).
Remove the 2 exhaust pipe front hanger bracket bolts (7).
Remove and DISCARD the 2 front suspension support bolts (8).
Remove the three way catalytic converter (3) including the exhaust pipe front hanger insulators (4) and the exhaust pipe front hanger bracket (5).
Remove the 2 exhaust pipe front hanger insulator nuts (6).
Remove the exhaust pipe front hanger bracket (5).
Remove the 2 exhaust pipe front hanger insulators (4).