The Lincoln Navigator is Lincoln's full-size luxury SUV, sharing its platform with the Ford Expedition and offered with a twin-turbo EcoBoost V6 and standard 4WD or RWD. The 2004 Lincoln Navigator factory service manual documents the specific engine, transmission, and air suspension system for this model year.
EcoBoost Engine and Air Suspension Service
The Navigator's twin-turbo EcoBoost V6 requires periodic intake valve cleaning and correct oil specification documented in the factory manual. The standard self-leveling air suspension requires specific diagnostic procedures for the compressor and height sensors.
What This Navigator Manual Covers
- EcoBoost V6 engine — intake valve cleaning, oil specification
- Air suspension diagnostic and component replacement procedures
- 10-speed automatic transmission fluid specification and service
- Complete electrical diagrams for all trim levels