Fusion FWD L4-2.5L Hybrid (2010)
Exhaust Manifold: Removal and Replacement
Catalytic Converter - Manifold, Hybrid
Removal
1. NOTE: Always install new fasteners and gaskets as indicated. Clean flange faces prior to new gasket installation to make sure of proper sealing.
With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Vehicle Jacking and Lifting. See: Maintenance/Vehicle
Lifting
2. Disconnect the Heated Oxygen Sensor (HO2S) and the Catalyst Monitor Sensor (CMS) electrical connectors.
3. Remove the 2 catalytic converter manifold-to-exhaust flexible pipe nuts.
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Discard the gasket and the 2 nuts.
4. Remove the 6 catalytic converter manifold shield bolts and the heat shield.
5. Remove the 2 catalytic converter manifold shield bracket bolts and the bracket.
6. Loosen the 2 catalytic converter manifold bracket bolts.
7. Remove the 7 catalytic converter manifold nuts and remove the converter from the vehicle.
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Discard the 7 nuts and the gasket.
8. Remove and discard the 7 catalytic converter manifold studs.
9. Clean and inspect the catalytic converter manifold. For additional information, refer to Engine.
Installation
1. Install the 7 new catalytic converter manifold studs.
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Tighten to 17 Nm (150 lb-in).
2. Position a new catalytic converter manifold gasket on the studs.
3. NOTICE: Failure to tighten the catalytic converter manifold nuts to specification before installing the converter bracket bolts will cause
the converter to develop an exhaust leak.
NOTICE: Failure to tighten the catalytic converter manifold nuts to specification a second time will cause the converter to develop an
exhaust leak.
NOTE: Make sure to tighten the nuts in the following sequence in 2 stages.
Position the catalytic converter manifold and tighten the 7 new nuts in the sequence shown, in 2 stages.
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Stage 1: Tighten to 55 Nm (41 lb-ft).
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Stage 2: Tighten to 55 Nm (41 lb-ft).
4. Tighten the 2 catalytic converter manifold bracket bolts.
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Tighten to 20 Nm (177 lb-in).
5. Install the 2 catalytic converter manifold shield bracket bolts and the bracket.
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Tighten to 20 Nm (177 lb-in).
6. Position the catalytic converter manifold shield and install the 6 heat shield bolts.
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Tighten to 10 Nm (89 lb-in).