gscrippler

Took both of my 2011 f150 s in the reflash worked on one. The other needed the valve body replaced its been fine ever since

Workstoomuch

I have a 2011 F150 with the same problems as being mentioned in this thread. Occasional really rough 1-2 shifts. It usually occurs after going over a speed bump or on slow turns, and generally after start up. I have taken it into multiple Ford dealerships and always get the same answer - we cant replicate the problem and everything should be fine. I am now past the warranty period and I am very frustrated. When it happens it feels like I am getting rear ended - a loud pop and a jolt. It looks like several folks have had this fixed by getting reflash - supposedly that has been done on my truck, but nothing changed. It sounds like replacing the valve body is a possible solution. Are there any other fixes or ways to verify if the valve body is the issue? Thanks

stronger800

Mine is Exactly the same. Start truck at work, roll slowwwwwly up to the speed bump...I actually brace myself for it, and make sure my coffee lid is closed. I was going to say that it feels like you got rear ended, or that somebody just randomly dropped a cinder block into your box. 100k premium warranty.....doing me no good.

ATVJOE

I have a 2011 with the 6.2 and does this at low speed, stop and go traffic. Feels like being rear ended, every time it happens I look around because I think I got hit.

gscrippler

Ford had issues through late 2010 with valve bodies there should be a tsb for it

Ynot4me2

Does anyone know how much a reflash is and valve body is in Canada? I'm out of warranty

SanDiegoSTX

So I know this is an old thread, but I just picked up a 2011 STX with 3.7L V6. When I first got it, it had a bad clunk stopping and starting and the occasional hard shift. I did the fix for the clunky driveshaft by adding Teflon grease, and that seemed to fix it, but the hard 1-2 shifts still happen when I'm pulling out of the underground garage at work, usually rounding the corner slowly then beginning an a mild uphill grade. You can hear the revs increasing and then, BAM!, second gear. I get the occasional hard downshift too, I think 3-2, when I'm starting to accelerate from an onramp light when getting on the freeway. I'll start taking off, but as I hit the hill, I give it more gas and BAM!, downshifts hard and then away I go.


So I'm going to see if I can get in and get a reflash, but my buddy just took his in for the same problem, and they swear there is no TCM reflash available for our trucks. His is getting a whole new tranny.


So it seems there are two possible fixes for this so far, reflash if you can get a dealership to do one or new valve body. As it looks like the reflash may not be an option for me, and I really don't want to shell out $1000 for a new valve body, has anyone yet tried like a Sonnax Zip Kit to see if that helps resolve the issue? The zip kit is only like $150, and it claims to fix all the common problems with AT valve bodies.


TIA and sorry to resurrect an old thread.

Rizzy

I have the same issue, they chalked it up to a "parking lot bump" and said it was my driving style on how I hit the gas at a "key split second". According to the shop foreman at Holman Ford in Turnersville, NJ. I think its a bunch of bull****. I've been in there 4 or 5 times for this issue and even was able to recreate it for him. He said he can reset the computer, but since the truck cpu learns the driving style of the operator, it will eventually come back. I think they know something we don't - that there's something ****ty that Ford doesn't want to fix.

Rizzy

Whats the news about the reflash and valve body? Is this a cure for my "parking lot bump" nightmare?

Ynot4me2

I too was giving all sorts of excuse by the dealer including my driving etc... Since my truck was no longer under warranty, they wanted $600 for a reflash with the updated version. Bunch of lying thieves. I love my F150, but I hate all the dealers in my region with a passion. I think they all want to be #1 at having pissed off the most customers. Anyway, I also suspected it was related in some way to the learning transmission. So one day I disconnected the battery for an hour hoping it would erase the memory. And it did and it worked fro about 8 months or so.



Give it a try and let me know how it turns out. Hopefully it will work for you also.