Because of the Federally-mandated extended warranty covering emission-related components such as the catalytic converter, it is advisable to check with a dealer service department before replacing the converter at your own expense. Begin by raising the vehicle and securely supporting it on jackstands. Apply a liberal amount of penetrating oil onto the threads of all fasteners to be removed. Disconnect the downstream
Oxygen Sensor electrical connector and remove the sensor from the exhaust pipe. Unscrew the two nuts fastening the exhaust pipe (catalytic converter) to the exhaust manifold, retaining the exhaust clamp springs. Next, unscrew the two nuts fastening the exhaust pipe (catalytic converter) to the center muffler, again retaining the exhaust clamp springs. Remove the exhaust pipe (catalytic converter) and discard the front and rear exhaust gaskets. For installation, reverse the removal process using new exhaust gaskets, ensuring the springs are properly located by aligning them with the dimples in the exhaust flanges, and apply anti-seize compound on all bolts and nuts.