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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

6.0L trans problem

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Old Jan 7, 2025 | 03:58 PM
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SxsRider89's Avatar
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6.0L trans problem

So today as I cranked my truck (07 f250) I realized my tow haul light started flashing and seems like it was dragging it's feet from takeoff, but then run good while moving. I had a few codes but did the stupid thing of erasing them before I read/saved them. Has anyone ever had this problem? What was the reason behind this? Sorry if it is a newbie or been repeated multiple times.
 
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Old Jan 7, 2025 | 06:36 PM
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You have something wrong.

If you want more specific help we need the codes.
 
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Old Jan 7, 2025 | 07:31 PM
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Mark Kovalsky,

going back and checking, codes are P0673, P0700, P0266, and P1744.

I just don't understand how it runs fine after starting off. I know the 1st code is for the glow plug. Also, don't know why my tow/haul is flashing.

Any help is greatly appreciated.
 
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Old Jan 7, 2025 | 07:34 PM
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https://www.ford-trucks.com/forums/1...tc-lockup.html
 
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Old Jan 7, 2025 | 07:51 PM
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BISMIC:

from reading over the post that you posted, IMO it doesn't seem like it would be the TC-lockout but right at the beginning. Is it common for it to smooth out after it is warm? After about 5 mins of driving, it smooths out and doesn't do it anymore. I am so lost and this is my first diesel. SMH!!!
 
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Old Jan 7, 2025 | 08:00 PM
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In the linked thread, Mark K describes what the code means.

P1744: Torque Converter Clutch Solenoid Circuit Performance (Maybe the TCC clutch, a bad seal on the input shaft, a stuck torque converter clutch valve, a bad torque converter, or even the PCM). If it also is a bad TCC solenoid, you would also have a specific code for that.

The other code of significance is the #2 cylinder contribution (cylinder is weak due to mechanical problem or injectors are not contributing necessary volume of fuel).
 
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Old Jan 7, 2025 | 09:08 PM
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Mark Kovalsky
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Originally Posted by SxsRider89
Mark Kovalsky,

going back and checking, codes are P0673, P0700, P0266, and P1744.

I just don't understand how it runs fine after starting off. I know the 1st code is for the glow plug. Also, don't know why my tow/haul is flashing.

Any help is greatly appreciated.
The tow/haul is flashing because codes P0700 and P1744 are stored in the computer's memory. When transmission codes are stored, the tow/haul flashes to alert the driver that there is a problem.
 
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