Lincoln Navigator: Engine Ignition - 3.5L EcoBoost (272kW/370PS) / Spark Plugs. Removal and Installation
Removal
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Remove the ignition coil-on-plugs.
Refer to: Ignition Coil-On-Plug (303-07 Engine Ignition - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
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Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.
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NOTICE: Do not remove the spark plugs when the engine is hot or cold soaked. Spark plug thread or cylinder head damage can occur. Make sure that the engine is warm (hand touch after cooling down) prior to spark plug removal.
NOTICE: If a spark plug is dropped, internal damage may result and the spark plug must be discarded. The use of a damaged spark plug may cause cylinder misfire resulting in engine damage.
Remove the spark plugs.
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Inspect the spark plugs.
Refer to: Spark Plug Inspection (303-00 Engine System - General Information, General Procedures).
Installation
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NOTICE: If a spark plug is dropped, internal damage may result and the spark plug must be discarded. The use of a damaged spark plug may cause cylinder misfire resulting in engine damage.
Install and tighten the spark plugs.
Torque: 133 lb.in (15 Nm)
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Install the ignition coil-on-plugs.
Refer to: Ignition Coil-On-Plug (303-07 Engine Ignition - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
Ignition Coil-On-Plug. Removal and Installation
Removal
Both sides
Remove the engine appearance cover retainers,
release the engine appearance cover from the rear retainers and then
remove the engine appearance cover...
Other information:
Lincoln Navigator 2018-2025 Workshop Manual: Special Repair Considerations for Aluminum Repairs. Description and Operation
Repair of aluminum vehicle components requires some specialized handling and the proper isolation of the work area from steel repairs and dedicated hand and power tools that will be used only for aluminum repair. The following details some of these considerations. Isolation of Work Area Galvanic corrosion is caused through dissimilar metals remaining in contact with one another...
Lincoln Navigator 2018-2025 Workshop Manual: Satellite Radio Antenna. Removal and Installation
Removal Lower the headliner. Refer to: Headliner - Lowering (501-05 Interior Trim and Ornamentation, Removal and Installation). Disconnect the electrical connector. Separate the wiring harness guide. Remove the satellite radio antenna bolt. Torque: 62 lb.in (7 Nm) Remove the satellite radio antenna retai..
Categories
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- 4th Gen Lincoln Navigator Service Manual (2018 - 2025)
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- Service Information
Axle Tube Bearing. Removal and Installation
Special Tool(s) / General Equipment
205-123
(T78P-1177-A)
Installer, Axle Shaft Oil Seal
308-047
(T77F-1102-A)
Remover, Bearing Cup Slide Hammer
