DELAY IN TRANSMISSION WHEN SWITCHING INTO REVERSE

[bsayad]

I have a 2012 F-250 diesel with 800 miles on it and every so often there is a delay when I put the truck in reverse. I put the truck in reverse and after about 5-8 seconds the transmission will finally grab and gives a good tug; especially if you happen to have your foot on the pedal while it engages. Anybody have this issue or is this normal? Sorry, this is my first diesel.

[TrickTruck]

On startup, it seems to be normal. That is, start a cold truck and throw it in gear immediately, it'll go nowhere.
If you wait long enough for the display to boot up, that's long enough for the trans.

If this is happening every time you put it in reverse, than no, it's not normal, but has been reported often enough that Ford is aware of the problem. Take it in and get it fixed.

[bsayad]

It doesn't happen all the time; just once in awhile. I talked to the service manager at my dealership and he said that he has never heard of this problem or any for that matter with the new 6R140 trans that's in the 2012's. Like I said, I guess i'll have them look at it when I get an oil change. Thanks for the input.

Regards

[darkshadowgray08]

Originally Posted by bsayad

I have a 2012 F-250 diesel with 800 miles on it and every so often there is a delay when I put the truck in reverse. I put the truck in reverse and after about 5-8 seconds the transmission will finally grab and gives a good tug; especially if you happen to have your foot on the pedal while it engages. Anybody have this issue or is this normal? Sorry, this is my first diesel.

Take it in to the dealership and tell them there is a TSB for this exact problem for certain build date 2012's. Mine is at the shop right now getting this exact thing done, new oil pump in tranny. I was also getting shifts all over the place when the tranny was cold. The oil pumps leak when they sit for a while, and therefore don't shift properly until they are warmed up and full of oil again.

I will be getting mine back sometime this week, will post the TSB number for you when i get the paper work. Be prepared for the truck to be down for about a week though....

[bsayad]

Thank you so much for the info man I really appreciate it. It sure is nice having a site like this with people that actually know more than my dealership. Please let me know any info you get on the TSB.

[BACK2FORD]

HAVE YOU HEARD OF THIS ON THE 2011.MINE DID IT ONCE AFTER A 40 MILE DRIVE TOWING SOME WIEGHT.STOPPED TO BACK THE TRAILER UP AND HAD TO LOOK DOWN TO SEE IF I HAD IT IT REVERSE.TOOK ABOUT 4 SCONDS FOR TIT TO ENGAGE.ONLY HAPPENED ONCE.ALSO HAS THE MISS SHIFT WHEN ITS COLD BETWEEN 2 AND THREE WHEN IN TOW HAUL.

[darkshadowgray08]

I believe it was only for certain build dates in 2012's but i have not seen the actual tsb yet. Truck should be done tomorrow, once i get the tsb number i will post it and you should be able to do a search and read it.

[BACK2FORD]

thanks for the info.ive got 25000 trouble free miles on this truck.tuned from the get go.just had my first run in with the dealership over a vibration.they said im twisting my drive shaft with the extra torqe of the minimaxxso id like to get the update before they void my warrenty.

[Moflash]

On start up then shift to reverse mine has a 5-7 second delay then bangs into reverse after sitting for 1 hour every time.Had it reflashed once but after I towed me Airstream trailer a few hundred miles it returned.

[Moflash]

Also notice a driveline vibration when pulling away from a dead stop with the trailer attached the dealer said this was normal.Looked underneath that two piece driveshaft arrangement is a little odd with 800ft lbs of torque I can see what is happening it has to be hard on u joints.