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John Miller
John Miller, ASE Certified Master Tech
Category: Ford
Satisfied Customers: 199
Experience:  37 yrs auto repair experience, Host of the Car Counselor Show on Talk Radio 950 KPRC Houston TX
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Service engine soon light came on..OBDII

Customer Question

Service engine soon light came on. Had OBDII checked and this is the code that was read. Is this something I can repair myself?
Submitted: 10 years ago.
Category: Ford
Expert:  John Miller replied 10 years ago.

P1744 means "Excessive torque converter slippage"

When your truck goes into OD it will lock up the clutch in the torque converter to eliminate the fluid slippage in there.

This can be caused by a bad control solenoid, a bad converter or a fluid problem. I would suggest first having the trans fluid flushed and use BG Trans Flush system when you do it. I also suggest using synthetic fluid when you refill the system.

This may not cure your problem, but it does in a lot of cases. to find a shop near you that uses the BG Products go to

Good luck

John Miller and 4 other Ford Specialists are ready to help you
Customer: replied 10 years ago.
I have a Ford Taurus SE. Does the same thing apply?
Expert:  John Miller replied 10 years ago.

Yes. All late model cars use the same kind of torque converter lock up system. Ford has actually issued several service bulletins on this and they too recommend trying a flush first.

good luck


Customer: replied 10 years ago.
Thank you for your help. I'll try the flush.
Expert:  John Miller replied 10 years ago.
Let me know how it comes out