Remove the 6 heat shield bolts and the heat shield.
Disconnect the heated oxygen sensor (HO2S) and the catalyst monitoring sensor electrical connectors.
Remove and discard the 7 catalytic converter manifold nuts.
Remove the catalytic converter from the vehicle.
Discard the exhaust manifold gasket.
Remove and discard the 7 catalytic converter manifold studs.
Clean and inspect the catalytic converter manifold. For additional information refer to Section 303-00.
Installation
Install the 7 catalytic converter manifold studs.
Tighten to 17Nm (13 lb-ft)
Position a new catalytic converter manifold gasket on the engine.
CAUTION:Failure to tighten the catalytic converter nuts to specification before installing the converter bracket bolts will cause the converter to develop an exhaust leak.
CAUTION:Failure to tighten the catalytic converter nuts to specification a second time will cause the converter to develop an exhaust leak.
NOTE:Make sure to tighten the nuts in sequence in two stages.
Position the catalytic converter and tighten the 7 exhaust manifold nuts in two stages in the sequence shown.
Tighten to 47 Nm (35 lb-ft).
Tighteb to 47Nm (35 lb-ft).
Connect the HO2S and the catalyst monitoring sensor electrical connectors.
Position the heat shield and install the 6 heat shield bolts.
Tighten to 10 Nm (89 lb-in).
Install the 2 catalytic converter bracket bolts.
Tighten to 25 Nm (18 lb-ft).
Install the exhaust flexible pipe. For additional information, refer to Exhaust Flexible Pipe in this section.
