Lincoln Navigator: Power Steering / Steering Gear. Removal and Installation

Special Tool(s) / General Equipment

Removal

NOTICE: Disconnect the battery ground cable anytime the steering linkage is being serviced or damage to the steering gear may occur resulting in steering gear replacement.

1. If installing a new steering gear, connect the scan tool and upload the module configuration information from the PSCM .
   Refer to: Module Configuration - System Operation and Component Description (418-01B Module Configuration - Vehicles With: Over-the-Air (OTA) Programming, Description and Operation).
   

1. Disconnect the battery ground cable.
   Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
   

1. Using a holding device, hold the steering wheel in the straight-ahead position.
   

1. Remove the wheel and tire.
   Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).
   

1. 1. NOTE: Use the hex-holding feature to prevent the stud from turning while removing the nut.

      Remove and discard the outer tie rod end nut.
      

   2. NOTICE: Do not use a hammer to separate the outer tie-rod end from the wheel knuckle or damage to the wheel knuckle may result.

      NOTICE: Use care when installing the tie rod separator or damage to the outer tie-rod end boot may occur.

      Separate the outer tie rod end from the wheel knuckle.
      Use the General Equipment: Tie Rod End Remover

1. NOTE: If equipped.

   Remove the underbody shield retainers and remove the underbody shield.
   

1. NOTE: If equipped.

   Remove the underbody shield retainers and remove the underbody shield.
   

1. NOTE: If equipped.

   NOTE: 4WD (four-wheel drive) shown, RWD (rear wheel drive) similar.

   Remove the underbody shield retainers and the underbody shield.
   

1. 1.   WARNING: Do not reuse steering column shaft bolts. This may result in fastener failure and steering column shaft detachment or loss of steering control. Failure to follow this instruction may result in serious injury to vehicle occupant(s).

      Remove and discard the steering column shaft bolt.
      
   2. Separate the steering column shaft u-joint from the steering gear.
      

1. 1. Disconnect the 2 EPAS gear electrical connectors.
      
   2. Unclip an position the steering gear wire harness aside.
      

1. Remove and discard the 2 steering gear mounting bolts.
   

1. 1. Shift the steering gear towards the driver side of the vehicle.
      
   2. Remove the steering gear.
      

Installation

1. 1. Position the steering gear.
      
   2. Shift the steering towards the passenger side of the vehicle.
      

1. NOTE: Driver side steering gear mounting bolt must be torqued first.

   Install the 2 new steering gear mounting bolts.
   Torque: 184 lb.ft (250 Nm)

1. 1. Connect the 2 EPAS gear electrical connectors.
      
   2. Position the steering gear wire harness and install the retaining clip.
      

1. 1.   WARNING: Do not reuse steering column shaft bolts. This may result in fastener failure and steering column shaft detachment or loss of steering control. Failure to follow this instruction may result in serious injury to vehicle occupant(s).

      Connect the steering column shaft u-joint to the steering gear.
      
   2. Install the new steering column shaft bolt.
      Torque: 35 lb.ft (48 Nm)

1. NOTE: If equipped.

   NOTE: 4WD (four-wheel drive) shown, RWD (rear wheel drive) similar.

   Install the underbody shield and the underbody shield retainers.
   Torque: 30 lb.ft (40 Nm)

1. NOTE: If equipped.

   Install the underbody shield and install the underbody shield retainers.
   Torque: 30 lb.ft (40 Nm)

1. NOTE: If equipped.

   Install the underbody shield and install the underbody shield retainers.
   Torque: 30 lb.ft (40 Nm)

1. 1. Connect the outer tie rod end to the wheel knuckle.
      

   2. NOTE: Use the hex-holding feature to prevent the stud from turning while installing the nut.

      Install the new outer tie rod end nut.
      Torque: 66 lb.ft (90 Nm)

1. Install the wheel and tire.
   Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).
   

1. Connect the battery ground cable.
   Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
   

1. When installing a new steering gear, it must be configured (using vehicle as-built data or module configuration information retrieved earlier in this procedure). Connect a scan tool and follow the scan tool instructions.
   Refer to: Module Configuration - System Operation and Component Description (418-01B Module Configuration - Vehicles With: Over-the-Air (OTA) Programming, Description and Operation).
   

1. Check and if necessary, adjust front toe.
   Refer to: Front Toe Adjustment (204-00 Suspension System - General Information, General Procedures).