Catalytic Converter - Removal

5.7L ENGINE

WARNING: If torches are used when servicing the exhaust system, do not allow any flame near the fuel lines or the fuel tank. Failure to follow these instructions may result in possible serious or fatal injury.





1. Disconnect the negative cable
2. Raise and support the vehicle.
3. If equipped, remove skid plates Skid Plate - Removal.
4. Saturate the bolts (2) and nuts (3) with heat valve lubricant. Allow 5 minutes for penetration.





5. Remove transmission crossmember reinforcement brackets (1, 4).
6. If equipped, Remove the lower heat shield near the front driveshaft.
7. Remove the upstream and the downstream oxygen sensors from the exhaust Oxygen Sensor - Removal.





8. Remove the nuts from the front exhaust pipe/catalytic converter assembly to muffler flange (2).





9. Remove bolts (4) and flanged nuts (1) at the exhaust manifold.
10. Remove the front exhaust pipe/catalytic converter assembly (1) from the vehicle.