Lincoln Navigator: Automatic Transmission - 10-Speed Automatic Transmission – 10R80 / Torque Converter Clutch (TCC). Diagnosis and Testing
Torque Converter Clutch (TCC)
For torque converter operation,
REFER to: Torque Converter (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Description and Operation).
| Condition | Possible Sources | Action |
| TCC does not apply | TCC solenoid mechanically stuck OFF |
INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). |
| TCC priority valve stuck OFF |
DISASSEMBLE, CLEAN and INSPECT the TCC priority valve. If the bore,
valve or spring is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
| TCC regulator valve stuck OFF |
DISASSEMBLE, CLEAN and INSPECT the TCC regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
| TCC damper missing or damaged. |
DISASSEMBLE, CLEAN and INSPECT the TCC damper. If the damper is missing or damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
| Converter feed blow-off valve missing or damaged |
DISASSEMBLE, CLEAN and INSPECT the converter
feed blow-off valve. If the valve is missing or damaged, INSTALL a new
main control valve body. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
| CONV FD, MDA-TCC, APPLY, REL hydraulic circuit blocked or leaking |
DISASSEMBLE and INSPECT the main control valve
body and separator plate passages for debris, blockage and leaks. CLEAN
as necessary. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
|
REMOVE and INSPECT the front support assembly
and input shaft Teflon seals for damage, blockage and leaks. REFER to: Torque Converter (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Description and Operation). INSTALL new components as necessary. REFER to: Transmission (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul). |
||
| TCC friction material worn or damaged |
INSTALL a new torque converter. REFER to: Transmission (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Transmission (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Transmission - 3.0L Power Stroke Diesel (307-01D) . |
|
| TCC always applied/stalls vehicle | TCC solenoid mechanically stuck ON |
INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). |
| TCC priority valve stuck ON |
DISASSEMBLE, CLEAN and INSPECT the TCC priority valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
| TCC regulator valve stuck ON |
DISASSEMBLE, CLEAN and INSPECT the TCC regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
| CONV FD, MDA-TCC, APPLY, REL hydraulic circuit cross leaks |
DISASSEMBLE and INSPECT the main control valve
body and separator plate passages for cracks, warping, and damage. If
damage is found, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
|
REMOVE and INSPECT the front support assembly
and input shaft Teflon seals for damage, blockage and leaks. REFER to: Torque Converter (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Description and Operation). INSTALL new components as necessary. REFER to: Transmission (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul). |
||
| TCC friction material worn or damaged |
INSTALL a new torque converter. REFER to: Transmission (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Transmission (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Transmission - 3.0L Power Stroke Diesel (307-01D) . |
|
| TCC cycles, shudders or chatters | Incorrect transmission strategy programmed into the TCM |
CARRY OUT the transmission strategy download and the adaptive learning drive cycle. REFER to: Transmission Strategy Download (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, General Procedures). REFER to: Adaptive Learning Drive Cycle (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, General Procedures). |
| TCC solenoid mechanically sticking |
INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). |
|
| TCC priority valve sticking |
DISASSEMBLE, CLEAN and INSPECT the TCC priority valve. If the bore,
valve or spring is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
| TCC Regulator Valve sticking |
DISASSEMBLE, CLEAN and INSPECT the regulator
valve. If bore or valve is damaged, INSTALL a new main control valve
body. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
| CONV FD, MDA-TCC, APPLY, REL hydraulic circuit blocked or leaking |
DISASSEMBLE and INSPECT the main control valve
body and separator plate passages for debris, blockage and leaks. CLEAN
as necessary. REFER to: Main Control Valve Body (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Main Control Valve Body - Vehicles With: Mechanical Shift (307-01D) . |
|
|
REMOVE and INSPECT the front support assembly
and input shaft Teflon seals for damage, blockage and leaks. REFER to: Torque Converter (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Description and Operation). INSTALL new components as necessary. REFER to: Transmission (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul). |
||
| TCC friction material worn or damaged |
INSTALL a new torque converter. REFER to: Transmission (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Transmission (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation). REFER to: Transmission - 3.0L Power Stroke Diesel (307-01D) . |
Low One-Way Clutch Assembly. Diagnosis and Testing
Low One Way Clutch
For low one way clutch operation, REFER to: Low One-Way Clutch
Assembly (307-01 Automatic Transmission - 10-Speed Automatic
Transmission – 10R80, Description and Operation)...
Adaptive Learning Drive Cycle. General Procedures
Programming
NOTE:
Perform the adaptive learning drive cycle on a level road surface.
Using the scan tool, clear the DTCs (Diagnostic Trouble Codes) and Transmission Adaptive Tables...
Other information:
Lincoln Navigator 2018-2025 Workshop Manual: Low Voltage Differential Signalling (LVDS) Cable. Removal and Installation
Removal Remove the APIM . Refer to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation). Remove the FDIM ...
Lincoln Navigator 2018-2025 Workshop Manual: Steering Column Control Module (SCCM). Removal and Installation
Removal NOTE: Removal steps in this procedure may contain installation details. NOTE: This step is only necessary when installing a new component. NOTE: The PMI process must begin with the current SCCM installed. If the current SCCM does not respond to the diagnostic scan tool, the tool may prompt for As-Built data as part of the repair...
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Wheel to Hub Runout Minimization. General Procedures
Check
NOTE: Wheel-to-hub optimization is important. Clearance between the wheel and hub can be used to offset or neutralize the Road Force® or run-out of the wheel and tire assembly. For every 0.001 inch of wheel-to-hub clearance, the Road Force® can be affected between 1 and 3 pounds depending on the tire stiffness.
NOTE: The example below illustrates how the clearance between the wheel and the hub can be used to offset the high spot of radial run-out or Road Force®. Following the procedure will make sure of the best optimization.
Position the wheel and tire assembly on the vehicle so that the high spot location of radial run-out or Road Force® is at the 6 o'clock position and