GEN 1 Gen 1 6.2l transmission codes/symptoms/diagnostics

[warmonger]

My 2010 6.2l is throwing transmission codes…..700,741 TC solenoid malfunctions.
Symptoms:
- intermittent hard shifts, seems to be mostly 6th gear OD some slipping but not consistently.
- seems worse in wet conditions, trying to isolate wiring harnesses to check them
- will check fluid this week, no over heating detected
- shifts through gears smoothly under heavy acceleration up and down

I have high mileage, 170k…..well maintained all drive line components function properly, etc.

Looking for some advice from the knowledgeable group here ie:

-Should I replace solenoids?
-do we have guidance on common electrical short/contact locations that could be targets?
- should I take some steps like above or consider a remanufactured transmission unit with a new TC at this mileage? If so do we have members who have done that job and does the group recommend a remanufacture Co that is best?
Thanks for any guidance.

 

[Gryphon313]

Do you know if you have the older Mechatronic 6R80? Pretty sure the newer version came in the 2011’s.

 

[warmonger]

I’ll check the numbers, but I’m pretty sure it’s the SR80 Mechatronic

 

[FordTechOne]

P0741 is TCC solenoid circuit performance/stuck off. It’s a performance /conditional DTC, not an electrical DTC. If the PCM was seeing an electrical fault with the TCC solenoid, it would set a DTC such as P0740, P0742, P0743, etc.

I would not recommend replacing anything without a diagnosis, especially not the entire transmission. P0741 sets when the PCM commands the TCC on 3 consecutive times but does not see it apply. The first thing to check is fluid level and condition. Low fluid level can affect TCC operation, and burnt/contaminated fluid is an indication of a mechanical failure.

 

[warmonger]

Thank you for this reply. Very helpful. I’ll check the fluid and condition this week.