Catalytic Converter LH: Installation

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Clean all exhaust connections before reassembly.
NOTE: This step is only required if you are replacing with new components.

Apply anti-seize to thread of sensor. Using the special tool, install the HO2S and the catalyst monitor sensors.

Use Special Service Tool: 303-476 (T94P-9472-A) Socket, Exhaust Gas Oxygen Sensor.

Material

: Motorcraft® High Temperature Nickel Anti-Seize Lubricant / XL-2

Torque

: 35 lb.ft (48 Nm)

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NOTE: Make sure that new nuts are installed.

NOTE: The nuts and clamp are only finger tight at this step.

Position the LH catalytic converter in vehicle. Install the LH catalytic converter nuts and position in place the clamp.

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NOTE: Evenly tighten the LH catalytic converter nuts.

Tighten the LH catalytic converter nuts.

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 electrical connectors and attach the wire clips.

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If equipped, install the underbody shield.
Torque

: 71 lb.in (8 Nm)

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Check the exhaust system for leaks.