Lincoln Navigator: Engine Ignition - 3.5L EcoBoost (272kW/370PS) / Ignition Coil-On-Plug. Removal and Installation

Removal

Both sides

1. Remove the engine appearance cover retainers, release the engine appearance cover from the rear retainers and then remove the engine appearance cover.
   

Left side

1. Disconnect the electrical connector, then disconnect the crankcase ventilation tube and move it out of the way.
   Refer to: Quick Release Coupling (310-00 Fuel System - General Information - 3.5L EcoBoost (272kW/370PS)) .
   

Both sides

1. Disconnect the ignition coil-on-plug electrical connectors.
   

1. NOTE: Use compressed air to remove any foreign material from the ignition coil-on-plugs and surrounding area before removing the ignition coil-on-plugs.

   NOTE: When removing the ignition coil-on-plugs, a slight twisting motion will break the seal and ease removal.

   1. Remove the ignition coil-on-plug retainers.
      
   2. Remove the ignition coil-on-plugs.
      

Installation

Both sides

1. Inspect the ignition coil-on-plugs. Replace any damaged ignition coil-on-plugs. Replace any of the ignition coil-on-plug boots with cracks, rips or tears.
   

1. 1. Install the ignition coil-on-plugs.
      
   2. Install and tighten the ignition coil-on-plug retainers.
      Torque:
        Stage 1:  62 lb.in (7 Nm)
        Stage 2:  50°

1. Connect the ignition coil-on-plug electrical connectors.
   

Left side

1. Connect the crankcase ventilation tube, then connect the electrical connector.
   Refer to: Quick Release Coupling (310-00 Fuel System - General Information - 3.5L EcoBoost (272kW/370PS)) .
   

Both sides

1. Install the engine appearance cover into the rear retainers, then install and tighten the engine appearance cover retainers.
   Torque: 97 lb.in (11 Nm)