Catalytic Converter LH: Installation

WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Clean all exhaust connections before reassembly.
Clean and inspect the gasket surface.

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NOTE: Make sure that a new gasket is installed.

Install a new gasket.

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NOTE: Install the new studs if necessary.

NOTE: Tighten studs in 1-2-1 sequence.
- Install the exhaust manifold adaptor and the studs.
- Tighten the stud 1 half away.
- Tighten the stud 2.
  Torque: 30 lb.ft (40 Nm)
- Torque the stud 1.
  Torque: 30 lb.ft (40 Nm)
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NOTE: Make sure that new catalytic converter nuts are installed.

NOTE: Tighten Nuts in 1-2-1 sequence.
- Position the LH catalytic converter in vehicle. Install the LH catalytic converter nuts.
- Tighten the nut 1 half away.
- Tighten the nut 2.
  Torque: 30 lb.ft (40 Nm)
- Torque the nut 1.
  Torque: 30 lb.ft (40 Nm)
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Tighten the clamp.
Torque: 41 lb.ft (55 Nm)

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Connect the HO2S electrical connector.

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Install the underbody shield.
Torque: 71 lb.in (8 Nm)

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Connect the HO2S electrical connector.

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Check the exhaust system for leaks.