Oxidation Catalytic Converter Replacement 5.7L Left

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



2. Disconnect the heated oxygen sensor electrical connector.



3. Remove the heated oxygen sensor from the left oxidation catalytic converter.



4. Remove the exhaust manifold pipe nuts to the exhaust manifold.



5. Remove the catalytic converter nuts attaching the left oxidation catalytic converter to the right converter.
6. Remove the left oxidation catalytic converter from the vehicle.

1. Install the left oxidation catalytic converter to the vehicle.
2. Install the catalytic converter nuts attaching the left oxidation catalytic converter to the right converter.

Tighten
Tighten the catalytic converter nuts to 25 N·m (18 lb ft).




3. Install the exhaust manifold pipe nuts to the exhaust manifold.

Tighten
Tighten the exhaust manifold pipe nuts to 35 N·m (26 lb ft).




4. Install the heated oxygen sensor to the left oxidation catalytic converter.

Tighten
Tighten the heated oxygen sensor to 42 N·m (31 lb ft).




5. Connect the heated oxygen sensor electrical connector.
6. Lower the vehicle.

Oxidation Catalytic Converter Replacement 5.7L Right

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



2. Disconnect the heated oxygen sensor electrical connector.



3. Remove the heated oxygen sensor from the right oxidation catalytic converter.



4. Disconnect the rear heated oxygen sensor rosebud clip from the transmission brace.
5. Disconnect the rear heated oxygen sensor electrical connector.



6. Remove the rear heated oxygen sensor from behind the right oxidation catalytic converter.



7. Remove the exhaust manifold pipe nuts to the right exhaust manifold.



8. Remove the catalytic converter nuts attaching the right oxidation catalytic converter to the left converter.



9. Remove the catalytic converter hanger bolts.
10. Remove the catalytic converter hanger from the hanger bracket.



11. Loosen the exhaust muffler clamp attaching the right oxidation catalytic converter to the exhaust muffler.
12. Reposition the muffler clamp.
13. Remove the right oxidation catalytic converter by sliding the converter out of the exhaust muffler.

1. Install the right oxidation catalytic converter by sliding the converter into the exhaust muffler.
2. Position the muffler clamp.
3. Tighten the exhaust muffler clamp attaching the right oxidation catalytic converter to the exhaust muffler.

Tighten
Tighten the exhaust muffler clamp bolt to 50 N·m (37 lb ft).




4. Install the catalytic converter hanger to the hanger bracket.
5. Install the catalytic converter hanger bolts.

Tighten
Tighten the catalytic converter hanger bolts to 41 N·m (30 lb ft).




6. Install the exhaust manifold pipe nuts to the exhaust manifold.

Tighten
Tighten the exhaust manifold pipe bolts to 35 N·m (26 lb ft).




7. Install the catalytic converter nuts attaching the right oxidation catalytic converter to the left converter.

Tighten
Tighten the catalytic converter nuts to 25 N·m (18 lb ft).




8. Install the heated oxygen sensor behind the right oxidation catalytic converter.

Tighten
Tighten the heated oxygen sensor to 42 N·m (31 lb ft).




9. Connect the rear heated oxygen sensor electrical connector.
10. Connect the rear heated oxygen sensor rosebud clip from the transmission brace.



11. Install the heated oxygen sensor to the right oxidation catalytic converter.

Tighten
Tighten the heated oxygen sensor to 42 N·m (31 lb ft).




12. Connect the oxygen sensor electrical connector.
13. Lower the vehicle.