'11 cc 5.0 4x4 5* tuned 4.10 gears 295/70/17
This morning when I went to head to work as soon as the truck started moving it shifted from 1st to 5th. It continued for about half mile. I reset the computer back to stock and it shifted fine for 75 miles to work? Should I be worried? Trams temp was normal. Also no warning lights or codes.

 

Just curious, how mAny miles? Do you do any towing? And have u ever had the trans fluid change?

 

Sounds like the Molded Leadframe or TSB 13-2-3.


ISSUE:

Some 2011-2014 Mustang, 2011-2013 F-150, 2012-2013 Expedition and Navigator vehicles equipped with a 6R80 transmission and built on or before 4/8/2013 may exhibit a transmission engagement in 5th gear when starting. The wrench indictor and/or the seat belt minder may be illuminated, the speedometer reads zero and the odometer displays dashes while driving. Symptoms may clear after an ignition key cycle. Diagnostics trouble codes (DTCs) P0720 and P0722 may or may not be stored in the powertrain control module.


SERVICE PROCEDURE

Replace the molded leadframe on the main control assembly. Refer to Workshop Manual (WSM), Section 307-01 Shift Solenoids.
NOTE:REPLACEMENT OF SHIFT SOLENOIDS ARE NOT REQUIRED FOR THIS PROCEDURE.

PART NUMBERPART NAMEAL3Z-7G276-AMolded Leadframe

 

109,000 miles
Haven't towed in almost a year
I changed it at 50,000 and 100,000