P1744 Code: Torque Converter Clutch System Stuck in Off Position


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On-board diagnostic (OBD) codes help mechanics and vehicle owners identify vehicle problems easily. But before you can troubleshoot and fix these problems, you’ll need to have an idea about what they mean.

Code P1744 is one of the many trouble codes that your vehicle’s powertrain control module (PCM) can log. Here’s some helpful information about this trouble code.

What Does the P1744 Code Mean?

Diagnostic trouble code (DTC) P1744 is a manufacturer-specific code (usually used by Ford)  that stands for “Torque Converter Clutch System Performance.” This code is logged when the vehicle’s PCM detects a problem with the application of the torque converter clutch (TCC).

Modern automatic transmissions come with a torque converter, which (under certain conditions) multiplies the rotational force being transferred from the engine to the transmission. This component also acts as a fluid coupling between the engine and the transmission to prevent stalling when the vehicle is stopped and in gear.

car mechanic taking the torque converter from the automatic transmission
Modern automatic transmissions come with a torque converter, which (under certain conditions) multiplies the rotational force being transferred from the engine to the transmission.

All modern torque converters have a lockup clutch that eliminates the energy-wasting slippage within the torque converter by creating a mechanical connection between the engine and the transmission.

The PCM uses one or more solenoid valves to operate the torque converter clutch (TCC). Code P1744 is logged when the PCM detects a problem with the application of the TCC.

Note: The definition of code P1744 code may be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Common Causes of the P1744 Code?

What are the Common Symptoms of the P1744 Code?

How to Diagnose the P1744 Code

There is no one-size-fits-all approach to diagnosing code P1744. The steps for fixing this code will vary depending on your vehicle’s year, make, and model.

Check out the video below to get an idea of what the diagnostic process for this code might involve:

How to Fix the P1744 Code

Although various vehicles can log code P1744, the appropriate diagnostic and repair procedure can differ across models. If you’re unfamiliar with auto repair, it’s best to let a trusted mechanic fix the problem for you.

If you’re considering fixing this code on your own, it’s a good idea to do some research before pushing through with the repair. We recommend consulting a vehicle-specific repair manual or an online repair database to learn the appropriate diagnostic procedures for this code.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic.



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