Tribute 4WD L4-2.3L Hybrid (2008)
4. Remove and discard the 7 catalytic converter manifold nuts.
5. Remove the catalytic converter from the vehicle.
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Discard the catalytic converter manifold gasket.
6. Remove and discard the 7 manifold studs.
7. Clean and inspect the catalytic converter manifold. See - See: Exhaust Manifold/Testing and Inspection.
Installation
1. Install the 7 new catalytic converter studs.
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Tighten to 17 Nm {1.7 kgf-m, 13 ft-lbf).
2. Position a new catalytic converter manifold gasket on the engine.
3. Position the catalytic converter and tighten the 7 exhaust manifold nuts in 2 stages in the sequence shown.
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Stage 1: Tighten to 47 Nm {4.7 kgf-m, 35 ft-lbf).
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Stage 2: Tighten to 47 Nm {4.7 kgf-m, 35 ft-lbf).
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 the sequence in 2 stages.
4. Position the catalytic converter and tighten the 7 exhaust manifold nuts in 2 stages in the sequence shown.
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Stage 1: Tighten to 47 Nm {4.7 kgf-m, 35 ft-lbf).
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Stage 2: Tighten to 47 Nm {4.7 kgf-m, 35 ft-lbf).
1. Connect the HO2S and the catalyst monitor sensor electrical connectors.
2. Install the 2 catalytic converter bracket bolts.
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To install, tighten to 25 Nm {2.5 kgf-m, 18 ft-lbf}.
3. Install the exhaust crossover pipe. See - See: Exhaust Pipe/Service and Repair/Removal and Replacement/Exhaust Flexible Pipe
Removal/Installation.