Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLINCOLN2009NAVIGATOR 4WDREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION
2009 Lincoln Navigator 4WD
Automatic Transmission
2009 Lincoln Navigator 4WDSECTION Automatic Transmission
- Specifications
- Description And Operation
- Transmission Description
- Identification Tags
- Major Components
- Gear Ratios
- Range Selection
- Torque Converter
- Shift Patterns
- Mechanical Components and Functions
- Hydraulic System
- Hydraulic Circuits
- Hydraulic Circuit Identification and Function
- Line Pressure Hydraulic Circuits
- Lubrication Hydraulic Circuits
- Torque Converter Hydraulic Circuits
- Solenoid Hydraulic Circuits
- Forward Clutch (A) Hydraulic Circuits
- Direct Clutch (B) Hydraulic Circuits
- Intermediate Clutch (C) Hydraulic Circuits
- Low/Reverse Clutch (D) Hydraulic Circuits
- Overdrive (O/D) Clutch (E) Hydraulic Circuits
- Transmission Electronic Control System
- Transmission Control Module (TCM)
- Line Pressure Control (LPC) Solenoid
- Torque Converter Clutch (TCC) Solenoid
- Shift Solenoid A (SSA), Shift Solenoid B (SSB), Shift Solenoid C (SSC) and Shift Solenoid D (SSD)
- Shift Solenoid E (SSE)
- Turbine Shaft Speed (TSS) Sensor
- Output Shaft Speed (OSS) Sensor
- Transmission Fluid Temperature (TFT) Sensor
- Transmission Range (TR) Sensor
- Transmission Operation
- Diagnosis And Testing
- Diagnostic Strategy
- Diagnostic Flow Chart
- Preliminary Inspection
- Shift Point Road Test
- Torque Converter Diagnosis
- Visual Inspection
- Diagnostics
- Output State Control (OSC) Mode
- Diagnostic Parameters Identification (PID) Chart
- Transmission Drive Cycle Test
- Diagnostic Trouble Code (DTC) Charts
- Transmission Connector Layouts
- Special Testing Procedures
- Leakage Inspection
- Transmission Fluid Cooler
- Diagnosis By Symptom
- General Procedures
- In-Vehicle Repair
- Removal
- Disassembly
- Disassembly And Assembly Of Subassemblies
- Assembly
- Installation
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.