P1744 Lincoln Code - Torque Converter Clutch System Stuck in Off Position
Quick Answer
The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty torque converter clutch solenoid valve. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1744 Lincoln indicates Torque Converter Clutch System Stuck in Off Position.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty torque converter clutch solenoid valve.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1744 Lincoln Description
Lock-up operation, however, is prohibited when A/T fluid temperature is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.
What are the Possible Causes of the DTC P1744 Lincoln?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
- Transmission internal mechanical problem
How to Fix the DTC P1744 Lincoln?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
1996-2002 Lincoln Continental Factory Service Bulletin OBDII Code P1744
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1744 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1744 Lincoln code?
Need more information on how to fix the P1744 Lincoln code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1744 Lincoln code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1744 Lincoln Code
No Frequently Asked Questions about P1744 Lincoln Code found.
Discuss the causes and fixes for P1744 Lincoln OBDII Code
-
My 2000 Lincoln contentinual at about 35 mph is starting to "buck" it feels like. Its throwing a check transmission light after a while if driving. I was told to change sensors on transmission they said there was three and that would fix it. What you think.
-
You mean the transmission shifting solenoids?
I suggest start by checking the transmission fluid level and condition. If the fluid is low, top off.
If the fluid smells burnt out, then you may have a different problem other the solenoids. e.g. worn out clutches. If that is the case you may have to have a transmission shop inspect for you.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
