I have a 2010 F350 4x4. I took it in for and update on the PCM. The bottom of the letter stated a "Customer Satisfaction Program 11B23. The truck will not tow now without it going into a reduced engine power mode. Apparently Ford did this because of the problems they were having with the turbos and replacing them. So far no one, including Ford, seems to have a fix for this problem and everyone is scratching their heads and butts! I bought this truck because I tow, period. Is anyone experiencing this same problem?? If so any suggestions or have you come up with a fix?
Powertrain Control Module
1 - 20 of 66 Posts
Joined
·
175 Posts
The update wasn't really about turbos, it was about several small issues that could lead to catastrophic engine failure without much (if any) warning to the customer.
When did they do the PCM update to your truck?
Is the truck stock (chipped, DPF deleted, piped)?
The updates parameters are too tight, so minor fluctuations in certain measurements are putting them in "limp" mode to prevent damage. I was told the other day that they were stopping the 11B23 rollout because it's causing more problems than it's preventing.
Joined
·
175 Posts
I'm thinking that towing is just causing more heat, which is throwing the truck into limp mode.
I've actually heard of this 3 times now on another forum.
I'd be surprised if the truck had any real problem at all (apart from the nanny flash).
I've actually heard of this 3 times now on another forum.
I'd be surprised if the truck had any real problem at all (apart from the nanny flash).
Joined
·
326 Posts
I know it sounds silly but check the Fuel Filter. After a HPFP replacement and like 3 weeks in the shop I was told I must have had some bad fuel and I needed to call my insurance because they would not cover the damages of bad fuel. Scratching my head I just couldn't see that being the case and after that whole time they were supposadly trouble shooting my truck (Sinex) advised me to have then change the fuel filter based off what I was telling him was happening and they were shakeing their heads but they did it anyway and guess what? It worked I haven't lost power since. I have the same truck as you do, I'm just saying! If you want to see the issues I was haveing the title was "Strange Hiccups". Hope this helps and good luck.
I'm thinking we did the update about 4 or 5 weeks ago. I was towing a 20' gooseneck horse trailer with 4 to 5 horses in it and it started doing it on the way home only, it's about a 45 minute drive to where I was going. I would drive there and the truck would sit for about 5 hours and then drive home. I took it in after the first time and they couldn't find anything. It did it two more times and then I took it in with the trailer and horses still hooked up per their request. They still couldn't find anything. We tried towing a 21' Toy Hauler last week and an hour and a half into the trip we had to turn around and come home. My truck has been sitting in the shop for three days now and no one seems to have a fix. The mechanics have said Ford does now acknowledge there is a problem with the 11B23 update but will not let the mechanic have the previous programming to put it back. The truck is stock. There is definitely reduced engine power when the truck goes into the "limp home mode".
Joined
·
4,742 Posts
We did good on that one:thumbsup:
My truck is doing exact same thing...I tow a 38' GN and even empty if it is under a hard load,7 or so seconds it happens every time. Even on lowest setting mine will do it with no trailer! I've been patient with schips, but I too use my trk to its fullest and im changing to a pcm update friendly tuner.
The overboost condition p0234 is not caused by peak boost, but rather the increased demand of fuel supply for high boost. They say the xrt pro works fine with new flash, so I got pony up the $$$
The overboost condition p0234 is not caused by peak boost, but rather the increased demand of fuel supply for high boost. They say the xrt pro works fine with new flash, so I got pony up the $$$
Joined
·
175 Posts
Yeah, that sounds EXACTLY like what I've heard from a few other owners.
My service manager said that Ford stopped installing this flash last week, because of the issues.
1. You may be able to find a dealer who still has the previous flash.
2. You could find a used PCM somewhere with an older flash on it. Or buy one and have it flashed.
3. Try contacting Jody at dp-tuner(dot)com (They used to keep some in stock, and I know that at one time you could pay them to reflash Ford PCMs.) So you could either have yours done, or buy a used one to have him flash.
Other than those options, I think you're kind of stuck with whatever Ford wants to do for now.
Joined
·
175 Posts
It's not the tuner making the truck fall on its face, it's the 11B23 flash.
The XRT may work fine with the latest flash, but that doesn't mean your truck will.
The OP's truck is bone stock and having the "exact same" problem.
Out of curiosity, what do you mean you use your truck to the fullest? With the Superchips tuner you're not supposed to tow heavy on anything but the #1 tune anyway. And tunes 1, 2, and 3 are working fine with 11B23 (on trucks that run ok with the new flash in the first place).
Personally, I wouldn't know, the 11B23 letter said I have until 3/12 to reflash the truck, so I planned on waiting 6 months anyway. In retrospect, I'm glad I waited.
Joined
·
14 Posts
You're not the only one...
http://www.thedieselstop.com/forums/f35/csb-11b23-pcm-recalibration-278001/index9.html#post2055630
In short, the upgrade tightened up tolerances on temperatures changes. "Sticky" thermostats caused my truck to go into Limp mode when fully warmed up. Replacing the thermostats fixed the issue. Happened several times towing, but also empty. Happened MUCH sooner if I was towing. A fellow site member had the exact same symptoms as you and I, and replacing t-stats also cured his "limp". Check out the details on the thread I linked(before the computer programming technicality war started). Demand your dealer drive the truck, fully warmed up, with a scan-tool attached to confirm if there are temperature fluctuations. Otherwise, they often can't duplicate the problem. Good luck!
You may want to check out what happened to me with the 11B23 upgrade. You can find the thread here:
http://www.thedieselstop.com/forums/f35/csb-11b23-pcm-recalibration-278001/index9.html#post2055630
In short, the upgrade tightened up tolerances on temperatures changes. "Sticky" thermostats caused my truck to go into Limp mode when fully warmed up. Replacing the thermostats fixed the issue. Happened several times towing, but also empty. Happened MUCH sooner if I was towing. A fellow site member had the exact same symptoms as you and I, and replacing t-stats also cured his "limp". Check out the details on the thread I linked(before the computer programming technicality war started). Demand your dealer drive the truck, fully warmed up, with a scan-tool attached to confirm if there are temperature fluctuations. Otherwise, they often can't duplicate the problem. Good luck!
Joined
·
326 Posts
Yes we did :thumbsup:
Hmmm all of this is great information so now I am fully armed when I go into the dealer. I do have another question for you guys after reading some of the posts here. I was a little concerned about putting this info out there but feel I should be completely upfront on my truck. This truck was purchased new and my dealer installed an Edge chip in it immediately after purchasing. This was done for fuel economy per the dealer's recommendation. We currently own an 08 F250 that gets terrible mileage. We had sold the 08 F450 approximately one year after owning it because of the same thing. We had wanted to wait for the 2011 but our dealer said this would be a far better choice and I was a little leary of getting an untried 2011. We had to lemon our 03 Excursion. So, I have used this truck towing since last June and it has been fine until this flash. The dealer first said it was Edge and they weren't up to speed with the new programming. They dropped it from 2 to 1. Last week while trying to leave on vacation they walked me through putting it back to stock or 0. Still the same problem. Now they are saying they need to remove Edge completely and put back to stock but what I am hearing is that the problem is the flash from Ford. Am I correct? Should I have been towing with the chip in 2? I'm a little upset to say the least if I have to remove this as I had been getting around 24 mph not towing and going back to say 15 tops will suck. Oh, the flash was done on the unchipped stock F250 and is has had no problems at all. Towed great as we had to use this truck. Only got about 5.5 mph which wasn't cool!
Joined
·
326 Posts
24mpg really? Holy crap I stinking need to take that plung this is rediculas I too get like 14.2 average but if I could get 20 wow!
I called hs perf today and the reason the xrt, spartan or higher end tuner more or less overwrites fords programming whereas generic tuners (I.e. my sc 1856) modifies fords tune. That's why guys running spartan, h & s, etc aren't having issues with the flash.by no way am I an electronics guru or anything close to it, but I could see where that explanation would make sense?!?
Joined
·
175 Posts
It does make sense, but it doesn't explain why H&S and Spartan had to hurry up and come out with tunes that were compatible. The guys on PSN were having all kinds of issues waiting for compatible tunes for a couple of weeks.
So if their tuners overwrite the whole show, why didn't the existing tunes just work? (not saying you're fibbing, just that the story you were given doesn't seem to jive with the experiences of some owners.)
Joined
·
175 Posts
The problem could very easily be between the flash and the tuner. When you said the truck was stock in your first post, I assumed you meant stock.
I'd look into the model of tuner and see about getting their latest update, and find out if it's been reworked for the 11B23 flash.
I'd also look into the T-stat issue that has solved a few folk's problems.
Oh, and you may want to hand calculate your mileage. My dash computer says I'm getting 24-26 MPG on the highway, but I'm actually getting 17-21 when properly hand calculated. I've never heard of anyone getting better than 22 MPG with a 6.4 when driving it normally (e.g. not downhill with a tailwind).
Regarding your question about towing with the tuner, that's a bit tricky. You really should find out exactly what until you have, and see what Edge recommends for towing. My Superchips tuner (for example) has 5 tunes. #1 is for towing, #2 and #3 are ok for towing up to 6k, and #4 and #5 shouldn't be towed with at all.
What is so hard about ford reinstalling all flashed trks to previous working flash? I am gonna be waaaayyy upset if this new tuner wont give me back my drivability.
Are trucks running stock tune able to produce overboost code? This is the only code im getting....is the op's truck doing it on stock setting?
Are trucks running stock tune able to produce overboost code? This is the only code im getting....is the op's truck doing it on stock setting?
That was their first thought, that the Edge chip was not compatible with the new flash. They spoke to Edge and their recommendation was to take it down to level 1 and then to level 0. Neither of those changes fixed the problem. Now they are saying that Edge is saying it might be a year before they have new programming but it seems from what everyone is saying here that the problem lies with Ford and the flash. Interesting on the mileage, if and when my truck is on the road again I will definitely try hand calculating it. I did notice to get that kind of mpg you need to stay around the 65 mph and NOT be towing. Overall though it still is better than our 08 F250 by far. One other thing, does anyone seem to know why this hasn't effected the 08 F250 we own, just seems to be messing up the 10 F350. I am going to make some other phone calls tomorrow, one to Edge and some other Ford dealers not to mention Ford Customer Service. After speaking to the mechanics again this evening they said they would try and drive the truck to see if they could figure out the problem. Not certain how this is going to help as I drove it in there, towing a trailer full of horses in the limp mode and they couldn't get anything out of it then.
1 - 20 of 66 Posts
