I agree, I'll keep on them

 

You mean TCM. That is the seperate trans controller.

Dealer time.

 

Does the tow/haul mode make any changes internal to the tranny (since 07) or is it all in the PCM? My 07 expy is driven easy, mostly by the wife and although I sometimes feel the problems characteristic of them (jumping to low from rolling stop) I dont see it as a terrific problem. If I ever start towing TT's maybe I will. I understand that low gear is bypassed for normal driving on the street and tow starts in low. For most street and people hauling, low gear is not needed, 2nd is plenty low for good starts in most traffic and is ,in fact lower ratio than the low on the E4OD/4R100's. Anyway, can anyone clear me up on the function of the Tow/Haul? I havnt seen anything on this in search.

Guess I better check on the updated clutches-----#$*& I havent done the TSB for the shift yet either

 

Yes, I meant TCM. Tow-Haul does not make any internal changes to the trasmission, it only changes the shift strategies. It makes better use of lower gears while towing a load. The whole concept is in keeping the most power available to the powertrain at the most efficient operating range. It also helps keep transmission temperatures in check and eliminate gear hunting while driving down the highway.

 

I have noticed my '09 Screw { 5.4 } doing this shuddering & jumping / shifting when coming to a rolling stop also, but only on rare occasions . I have not taken it in to the dealer as , at least so far, hasn't been a real problem . I have yet to haul any loads { and may never do so }, and the truck has 2,300 miles on it at present, but was wondering if the truck's transmission would suffer any long term effects if it was constantly driven { in all types of driving , city, highway, etc. } in the " Tow - Haul " mode ? If it only changes the shift points , would this be harmful in any way ?
Any opinions / thoughts / experiences ?

 

Whole problem is not pulling anything, hook a 10K fiver on it and it will perform flawless lol!!! Sure happy we got a good one, pull 10K all day long without a problem. Just drive and enjoy it will not fail.!

 

The only long term effect from driving in Tow-Haul all the time might be worse fuel mileage if not towing as it tends to keep the tranny in a lower gear a little longer. But it won't damage anything.

 

Thanks, gonna try it for awhile and see what the mileage, power, and shifting affects might be .

 

what they all do and Ford needs a major recall for safety issues is lock the engine up solid if you roll backwards in 4wd or 2wd on a steep grade while in drive Step on the brake twice and you are out of brakes and the steering is gone also .If you have a trailer you are dead.Does the same thing going forward if the truck is in reverse and you are trying to back up a hill.Ford says it is designed to stall the engine since they all do it,09 and 2010 and they have no repair and one isn't needed.I reported it to DOT and am trying to lemon law the truck.Everyone should experiance the engine lock up so they expect it in precarious conditions and don't kill themselves.Is this happening to you to,I would like to know.Ford needs a Toyota experiance and to own up to the defective transmission.Pete pjgouldin@aol.com

 

The field service engineer was called in to experiance all the problems I am having with this transmission.No first gear in downshift after Ford flashed the computer to stop the tire screetching downshifts since brand new,extremely loud banging noise in the transfer case when in 4wd,transmission gets lost in 6th gear and jumps straight to 3rd whith violent shake,sometimes rolls away in park...always use your emergency brake.I have to use my 4wd every day to get to my home in the mountains so I experiance the severly flawed transmission daily.Ford could care less.The engineer told me the new transmission has no one way clutch like all other transmissions that stop the harsh engine lock up when rolling,it was removed due to failures of the clutch previously.After 2 weeks of trying everything to fix the truck Ford figured out all of them with the 6 speed lock up and stall so they stopped trying to fix it and in writing state it is a vehicle characteristic for the vevicle to lock up the motor,stall,lose brakes and steering and needs no repair.
At minimum until they figure out how to fix it,if they bother till people enjoying their off road trucks start rolling off cliffs they should make the owners of these vehicles aware but won't.I traded my 08 in on the 09 and never had a problem with it or my Fords before it.I can not believe how Ford has treated me.Make sure you have your dealers write what is wrong with your trucks on your repair orders and make sure they give you a copy.The method of operation common to complaint is the failure for them to document the issues so you don't have the paperwork to file the Lemon Law complaint as Ford was accused of in California and the State won and Ford was charged with fraud.Ford still refuses to provide me with the service records on the new truck claiming they are property of Ford,not mine.

 

File lemon law paperwork or hire attorney.

 

Thanks,in the process.Had to get the Georgia Governor's office to threaten violation to get my deserved paperwork and multiple refused repair orders.The point is,the trucks are very dangerous and I really want people to experiance the failure so they expect it rolling backwards on a steep road or trail or climb.Just let any 6 speed roll backwards a little while in drive and the motor will lock up solid.The reserve on the brake booster is 2 pumps.The trucks are so quiet you won't even realize the motor quit till you cant stop it.Its truly a shame,the rest of the truck is the best truck on the market.To bad a manual shift isn't available.

 

I agree, very dangerous. Ford will probably not address this problem. It's cheaper to settle with accident victims than to do a recall or address a costly mistake on thousands of vehicles.

 

All the dealers agree it isn't rite and it its mind blowing to them to experiance it especially with the new ones on their lots.All they can say is there is nothing we can do till Ford fixes it and they have no intention of going through the expense.Most people with 4wd hardly ever use it and they are aware of it.owell,I will push on trying to get it repurchased.The bummer is there isn't really another truck I would want.Maybe the 2011 will be fixed.

 

So nothing's changed?

https://www.ford-trucks.com/forums/8...150-stx-2.html

https://www.ford-trucks.com/forums/9...4problems.html

https://www.ford-trucks.com/forums/8...ml#post8292601