Lincoln Aviator: Exhaust System - 3.0L EcoBoost / Removal and Installation - Catalytic Converter LH

Removal

NOTE: If the catalytic converter is not being replaced, the HO2S and the catalyst monitor sensor do not need to be removed from the catalytic converter. Disconnecting the electrical connectors is still necessary.

NOTE: The exhaust Y-pipe dual catalytic converter is a 2-piece assembly. The LH and RH converters can be serviced separately as needed.

  1. With the vehicle in NEUTRAL, position it on a hoist.
    Refer to: Jacking and Lifting (100-02 Jacking and Lifting, Description and Operation).
  1. Remove the LH side exhaust flexible pipe.
    Refer to: Exhaust Flexible Pipe (309-00A Exhaust System - 3.0L EcoBoost, Removal and Installation).

  1. On both sides.
    • Remove the wheel arch liner to front subframe retainers.
  1. Disconnect the HO2S electrical connector.
  1. Disconnect the HO2S electrical connector.
    • Remove the nut.
    • Remove the pin-type retainers and the steering shield from the RH subframe.
  1. Remove the bolt and position the RH underbody shield aside.
  1. Remove the bolt and position the LH underbody shield aside.
    • Remove the nut.
    • Remove the pin-type retainers and the steering shield from the LH subframe.
  1. Loosen the middle subframe bolts.

    • Support the rear of the subframe with adjustable jack stands.
    • NOTICE: Only use hand tools when removing rear subframe bolts.

      Loosen the rear subframe bolts.
    • Lower the subframe.
  1. Position an adjustable jack stand under the transmission crossmember.
  1. Remove and discard the transmission crossmember bolts.
  1. Lower the jack stand 32 mm(1.25in).
  1. Remove the LH catalytic converter nuts and discard.
  1. Remove the bracket studs and nuts. Remove the LH catalytic converter from the vehicle.
  1. Clean and inspect the studs and the gasket surface, replace the studs if necessary.
    Torque: 18 lb.ft (25 Nm)

Installation

  1. Clean all exhaust connections before reassembly.
  1. NOTE: Make sure that new gasket is installed.

    Install the exhaust gasket.
  1. NOTE: The studs and nuts are only finger tight in this step.

    Install the catalytic converter and bracket studs and nuts.
  1. NOTE: Make sure that new nuts are installed.

    Install the LH catalytic converter nuts.
    Torque: 35 lb.ft (48 Nm)
  1. Tighten the catalyst assembly bracket studs and nuts.
    Torque:
       Studs:   18 lb.ft (25 Nm)
       Nuts:   18 lb.ft (25 Nm)
  1. Raise the transmission and crossmember.
  1. NOTE: Make sure that new bolts are installed.

    Install the transmission crossmember bolts.
    Torque: 59 lb.ft (80 Nm)
  1. NOTICE: Only use hand tools when installing rear subframe bolts.

    NOTE: Make sure that new bolts are installed.

    Raise the rear of the front subframe and install the bolts.
    Torque: 52 lb.ft (70 Nm)
  1. Install the middle subframe bolts.
    Torque: 195 lb.ft (265 Nm)
    • Install the steering shield and the pin-type retainers at the LH subframe.
    • Install the nut.
  1. Position the LH underbody shield back and install the bolt..
    Torque: 22 lb.in (2.5 Nm)
  1. Position the RH underbody shield back and install the bolt.
    Torque: 22 lb.in (2.5 Nm)
    • Install the steering shield and pin-type retainers at the RH subframe.
    • Install the nut.
  1. Connect the HO2S electrical connector.
  1. Connect the HO2S electrical connector.

  1. On both sides.
    • Install the wheel arch liner to front subframe retainers.
  1. Install the LH side exhaust flexible pipe.
    Refer to: Exhaust Flexible Pipe - Plug-In Hybrid Electric Vehicle (PHEV) (309-00B Exhaust System - 3.0L EcoBoost – Hybrid (BQ), Removal and Installation).
  1. Check the exhaust system for leaks.

    Diagnosis and Testing - Particulate Filter System

    Diagnostic Trouble Code (DTC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.REFER to: Diagnostic Methods (100-00 General Information, Description and Operation)...

    Removal and Installation - Catalytic Converter RH

    Removal NOTE: If the catalytic converter is not being replaced, the HO2S and the catalyst monitor sensor do not need to be removed from the catalytic converter...

    Other information:

    Lincoln Aviator 2020-2023 Service Manual: Description and Operation - Engine Component View


    E..

    Lincoln Aviator 2020-2023 Service Manual: Description and Operation - Warning Chimes - System Operation and Component Description


    System Operation System Diagram Item Description 1 ABS module 2 PAM 3 Door ajar switches 4 Driver seatbelt buckle 5 Passenger seatbelt buckle 6 RCM 7 PCM 8 GWM 9 SCCM 10 ACM 11 Rear speakers 12 Front speakers 13 BCM 14 IPMA 15 SODR 16 SODL 17 Base audio system 18 Audio DSP module 19 Rear speakers 20 Front speakers 21 Mid- and high-level 14- and 28-speaker audio systems 22 DSM 23 RGTM 24 IPMB 25 GSM 26 IPC chime arbitrator 27 IPC 28 Turn signal on tick-Tock tone 29 Belt-Minder® chime 30 Door ajar chime 31 Headlamps on chime 32 Parking brake chime 33 Seatbelt chime 34 Airbag secondary chime 35 Message center chime 36 Parking aid chime 37 Ignition/engine on chime 38 Perimeter alarm chime 39 Turn signal left on chime 40 Active park assist chime 41 BLIS/ CTA chime 42 Forward collision warning chime 43 Lane keeping aid warning chime 44 Transmission not in park chime 45 Backup chime (except North America) 46 Home safe light chime 47 Memory feedback chime 48 Power liftgate chime 49 Service AdvanceTrac chime 50 Electric Vehicle (EV) engine on chime 51 Adaptive cruise control warning chime 52 Electronic latch system Llock and unlock chime 53 Key-in-ignition warning chime 54 Fuel door release chime Network Message Chart   Module Network Input Messages - IPC Broadcast Message Originating Module Message Purpose Accessory delay   BCM Input used to control the overall chime function...

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    Adjusting the Steering Wheel - Vehicles With: Manual Adjustable Steering Column

    WARNING: Do not adjust the steering wheel when your vehicle is moving.

    Note: Make sure that you are sitting in the correct position.

    Unlock the steering column. Adjust the steering wheel to the desired position.

    Lincoln Aviator. Column

    Lock the steering column.

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