Catalytic Converter Heat Shield Replacement for Chevrolet Impala 2003

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

Notice: Refer to Catalytic Converter Movement Notice in the Preface section.

2. Support the exhaust system.
3. Remove the catalytic converter. Refer to Catalytic Converter Replacement .



4. Remove the heated oxygen sensor (HO2S) wiring harness (3) from the catalytic converter heat shield (4).



5. Remove the catalytic converter heat shield rivets.
6. Remove the catalytic converter heat shield.

1. Install the catalytic converter heat shield.
2. Install the converter heat shield rivets.



3. Install the heated oxygen sensor (HO2S) wiring harness (3) to the catalytic converter heat shield (4).
4. Install the catalytic converter. Refer to Catalytic Converter Replacement .
5. Remove the support from the exhaust system.
6. Lower the vehicle.
7. Inspect the exhaust system for leaks.