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Ron
Ron, ASE Certified Technician
Category: Transmissions
Satisfied Customers: 33469
Experience:  35 years working on Ford, Lincolns and Mercs.
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Getting code p1744 torque converter clutch system perf stuck

Customer Question

getting code p1744 torque converter clutch system perf stuck closed. see where some say replace transmission then others say replace wiring and solenoid. trans takes time to get into forward and reverse other than that trans works fine. what do you think
Submitted: 4 months ago.
Category: Transmissions
Customer: replied 4 months ago.
this is a 2004 ford f-150 5.4 4x4
Expert:  Ron replied 4 months ago.

Hello Bob, my name is ***** ***** I am a professional here at Justanswer. Thank you for your question and I will assist you with your concern.

The code P1744 indicate a mechanical torque converter performance issue, that the torque converter is not locking up as well as it should. In some cases this can be caused by an internal failure of the transmission or a bad torque converter solenoid, valve body problem, torque converter problem or more common a failed transmission. In order to determine which is failing you need to do some testing. I have enclosed the test steps in the link below. Run through them and this should help you determine that cause.

https://dl.dropboxusercontent.com/u/104923897/Trans%20test%20Aug%2010.pdf

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