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P1744 Ford

P1744 Ford - Torque Converter Clutch System Stuck in Off Position

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P1744 Ford Comments |  Add Comment
Possible causes
- 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
Help with Possible causes What does this mean?
Tech notes
There is a factory service bulletin for the following Ford models:

1996-2003 Ford Taurus
1996-2003 Ford Windstar
1996-2003 Ford Taurus, Windstar Factory Service Bulletin OBDII Code P1744
Help with Tech Notes What does this mean?
When is the code detected?
The Engine Control Module (ECM) detected excessive transmission slippage or no TCC solenoid operation
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1744 Ford Description

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). Lock-up piston operation will then be controlled. When the torque converter clutch solenoid valve is activated, the torque converter lockup clutch will engage creating a 1 to 1 RPM ratio between the transmission input shaft and the rotational speed of the torque converter.

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.

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FORD Technical Service Bulletins for P1744 code
1996 FORD TAURUS Power Train:automatic Transmission:torque Converter Details
1996 FORD WINDSTAR Power Train:automatic Transmission:torque Converter Details
1997 FORD TAURUS Power Train:automatic Transmission:torque Converter Details
1997 FORD WINDSTAR Power Train:automatic Transmission:torque Converter Details
1998 FORD TAURUS Power Train:automatic Transmission:torque Converter Details
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