kjo43

This sounds like a recall for the shift into first gear, that feels like you've been rear-ended when slowing to a stop.

copied from Ford's website: 4/27/16

Ford issues safety recall and customer satisfaction program for certain 2011-2012 Ford F-150, and 2012 Ford Expedition, Ford Mustang and Lincoln Navigator vehicles in North America to update powertrain control module software and inspect for certain diagnostic trouble codes
Ford is issuing a safety recall for approximately 202,000 2011-2012 Ford F-150, and 2012 Ford Expedition, Ford Mustang and Lincoln Navigator vehicles for a potential issue with the output speed sensor on the vehicle’s transmission lead frame. Under certain conditions, the transmission controls could force a temporary downshift into first gear. Depending on the speed of the vehicle at the time of the downshift, the driver could experience an abrupt speed reduction that could cause the rear tires to slide or lock up. This condition could result in loss of vehicle control, increasing the risk of a crash.

Ford is aware of three reports of accidents and no injuries related to this condition.

Affected vehicles are equipped with a 6R80 transmission and include certain 2011-2012 Ford F-150 vehicles built at Dearborn Truck Plant and Kansas City Assembly Plant, Aug. 19, 2011 through March 9, 2012; 2012 Ford Expedition vehicles built at Kentucky Truck Plant, Aug. 19, 2011 through Dec. 19, 2011; Ford Mustang vehicles built at Flat Rock Assembly Plant, Aug. 19, 2011 through Feb. 21, 2012; and Lincoln Navigator vehicles built at Kentucky Truck Plant, Aug. 19, 2011 through Dec. 17, 2011. There are 201,900 vehicles affected, including 184,000 in the United States and federalized territories and 17,900 in Canada.

Dealers will inspect the powertrain control module for diagnostic trouble codes tied to the issue. If no related diagnostic trouble codes are present, dealers will update the powertrain control module software, which will eliminate the downshift into first gear if an OSS fault occurs. Additionally, as part of the corresponding customer satisfaction program, Ford will provide a one-time replacement of the lead frame at no charge within 10 years or 150,000 miles from the warranty start date.

If related diagnostic trouble codes are present, dealers will update the powertrain control module software and replace the lead frame at no cost to the customer.

cmbezln

I posted about that a little bit ago. I thought the feeling of being rear ended coming to a stop people were describing was the slip-yoke issue, you'd know damn well if it shifted into 1st slowing down like this is describing I would think, wouldn't just be a slight bump.

fseries54303

Well, my 11 XLT falls into that category. Built in Dearborn. Let's see if I get the notice in the mail or not...


Edit. Just checked and mine doesn't. My build date is 11/30/2010.

waspkfd

just went thru these same problems, worse being on sunday when it skidded to a hault,, took it to FORD DEALER and he checked and says its the wire connector in the tranny causing a short? do u know anything about this? THANX!! 2011 3.7

FX4362

I got the recall notice a week ago. It said to wait until a software solution was developed then I would be contacted to schedule a time to bring it in to the dealer.

MattyMattFX4

I just started having these exact same issues with my truck, yet I did not receive a recall notice. I just called customer service and they were absolutely no help. Why wouldn't my truck get a recall being it's a 2012 with a 6r80? Has anyone else had this problem?

blue5.0

My father in law had this happening terribly in his 2011 3.7 Ford replaced the tranny for him.

Tothemax

Hopefully they do this while my truck goes in for the timing chain/ cam phaser TSB on monday.

FerdinandF150

It's only certain ones, you can log into your Ford Owner account online and see if you're part of the recall. There is also a thread on this that has some more info on what you're looking for in your build date to see if your truck is part of it:

https://www.f150forum.com/f38/2011-2...recall-343480/