[Watchmaker]

I understood from this forum there was an update for the ECU to help the 10 speed transmission shifting around first and second gear. Mine occasionally clunks. I made the appointment last week at the dealership for this exact thing. They got all my vehicle information and vin. I show up this morning and am told all ECU updates on this model have been stopped for a while and until further notice.

#1 My dealership is dumb.

#2 Does anyone have any more official information?

-Danny

 

[Laytunes]

Weird..... There was an update a while ago that ford put out as a recall, however later found it wasn't making the difference they thought, so they pulled it. Maybe it's that, or maybe they're just dumb.

 

[thegert87]

I call BS! I just had my truck's programming updated yesterday, July 13, for hard shifting. My MY is 2019, and my purchase date was Aug 2020, not sure if that makes a difference in your case...

My symptoms were the well noted hard shifting, generally from 1 to 3, 3 to 4, and clunks. Using Tow/Haul and Sport modes made the hard shifting much more noticeable, even under light load.

I made my appointment last week. I made it after I pulled out of my driveway, the truck hard shifted from 1 to 3. It was such a hard shift that there was a very noticeable decrease in acceleration. It was as if someone stabbed the brakes. I was only driving under light acceleration because the end of my street is maybe 75 feet away.

The update helped a lot. Hopefully it will maintain this performance.

One pet peeve still exists though. I really wish that when coming to a stop it would just downshift, 3,2,1, not skip shift 3,1. My personal opinon is that first gear should be only shifted into when at a complete stop, or close to it. Accelerating again, after a "rolling stop" from first, is annoying.

Good luck.

 

[jmperlik]

@thegert87 - can you please post the TSB or FSA #? Better yet, can you please post a pic of your RO (Repair Order)?

 

[navyR113]

I understood from this forum there was an update for the ECU to help the 10 speed transmission shifting around first and second gear. Mine occasionally clunks. I made the appointment last week at the dealership for this exact thing. They got all my vehicle information and vin. I show up this morning and am told all ECU updates on this model have been stopped for a while and until further notice.

#1 My dealership is dumb.

#2 Does anyone have any more official information?

-Danny

Here you go.

 

[thegert87]

Thanks navyR113, seems to be related to emissions though.

The service advisor used the exact terms of technical service bulletin, but I don't think it is referenced on the repair order. See attached.

 

[thegert87]

Hi Folks,

I posted previously that I took my truck in for hard shifting. Had about 7800 miles. First reprogramming, helped a lot. However, using tow/haul or sport mode would still result in hard shifts on occasion from 1-->2, 2-->3. Also, less often, hard shift from 3-->4, would feel as if someone had jabbed the brakes usually under light throttle.

This is repair number two for me.

I'll pick it up tomorrow and try to wrangle the TSB number out of the service advisor and post here.

Edit: This TSB reportedly released on/about July 14, 2021

 

[Reinharm]

Well while trying to get the oil cooler situation fixed (parts still back-ordered until ??) the service guy noticed this PCM TSB and claimed to have done it while they had the truck in the shop. So I haven't noticed much difference but a few relatively hard downshifts but they claim this is the PCM relearning my driving habits... I hope this is correct.

 

[thegert87]

Haven't replied yet because I didn't pick it up yet. It's been done, reprogramming was done the day I brought it in. However, I did ask that they check trans fluid level and write it in the repair order, that it was checked. They offer a report card of checking various fluids. Of course in the area that the trans fluid is, there is a note in parenthesis. …"If equipped with dipstick."

 

[jmperlik]

@thegert87 - Do you happen to get the TSB # so I can add to the title of this thread?

 

[thegert87]

Just stopped in to pick it up. No confirmation that fluid level was checked on the repair order so I didn't actually pick it up. I did see on the R.O. that is was previously flashed to 20E07, and then re-flashed to 20E07B. E means emissions...though? Maybe they also tucked in some new code for the transmission along the way?

 

[jmperlik]

@thegert87 - how long has your dealer had your vehicle? Three (3) posts and you still haven't left with your vehicle?

Thanks for posting back with the TSB number. I merged this thread with the ECU update hold? thread (since both threads were TSB 20E07-related) and reformatted the title of this thread to be consistent with all of the other threads in this sub-forum.

Now that I have merged these two threads, you can see that the Dealer letter than @navyR113 posted previously is the same 20E07 that is indeed Emissions related. This is why I was inquiring about which TSB this was to see whether it was something we knew about or something new.

 

[navyR113]

@thegert87 - how long has your dealer had your vehicle? Three (3) posts and you still haven't left with your vehicle?

Thanks for posting back with the TSB number. I merged this thread with the ECU update hold? thread (since both threads were TSB 20E07-related) and reformatted the title of this thread to be consistent with all of the other threads in this sub-forum.

Now that I have merged these two threads, you can see that the Dealer letter than @navyR113 posted previously is the same 20E07 that is indeed Emissions related. This is why I was inquiring about which TSB this was to see whether it was something we knew about or something new.

I'm curious what changed between 20E07 and 20E07B.

 

[jmperlik]

I'm curious what changed between 20E07 and 20E07B.

Agreed! Whatever was in the original 20E07 must not have worked/made things worse, because they stopped it dead-in-its-tracks by putting the hold on it until they could release 20E07B. Problem is that all of these systems (ECM, TCM, Emissions, etc) are all tied together and controlled via programming now, so it's not a simple diagnosis that "your flux-capacitor is bad" anymore...

 

[thegert87]

@thegert87 - how long has your dealer had your vehicle? Three (3) posts and you still haven't left with your vehicle?

I just picked it up yesterday. Trying to get in contact with the service advisor and the service manager was not easy. Issues with calling them occurred, several calls were disconnected. I left a voicemail with the service advisor, and the service manager.

I plan on following up with the dealer's general manager to discuss the issue of not documenting fluid levels and issues of trying to get in touch with service advisor and service manager.

 

[thegert87]

Going on a trip over the next week, will report back afterwards about shifting.

 

[thegert87]

800 mostly highway mines last week. Only drove in normal mode. All was fine. Mileage seems to have improved slightly. About 1 or 1.5 mpg. Truck calculated 30.6 but at the pump it was more like 29.

I still need to drive in sport mode to see how shifts from 1-2, 2-3, are. They were a little hard after first flash. Otherwise in normal mode shifting has been smooth both after first and second flash.

 

[jmperlik]

@thegert87 - 4x2 is what's allowing you to achieve the magical 30 MPG on the highway.

4x4 suffers parasitic loss due the front axles always spinning on the Lariat and above trim levels, but I was happy to get over 27 MPG on both legs of my trip down to Charlotte last month.

Glad to hear things are for the better.

 

[Reinharm]

@thegert87 - 4x2 is what's allowing you to achieve the magical 30 MPG on the highway.

4x4 suffers parasitic loss due the front axles always spinning on the Lariat and above trim levels, but I was happy to get over 27 MPG on both legs of my trip down to Charlotte last month.

Glad to hear things are for the better.

The first road trip I took after buying the PS was to New Orleans to visit family. I got a solid 28-29 mpg going down and 30-32 mpg coming home with a sustained 25-30 mph wind on the tailgate! Last month I drove to Colorado to visit my son and (no load or towing) and the trip computer had me at 28-ish the whole trip on the highway. Last year I did the same trip to Colorado pulling an 8x16 double axle box trailer and highway mpg suffered it was never higher than 16. More disturbing however was the DEF consumption was remarkable. I could watch the gauge going down every hour of driving. Normally I put a box or 2.5 gallons of DEF about every six months of normal driving. It would be interesting to know how a 6.7L Superduty would do under the same towing conditions. I imagine the two might be similar which only give us (3.0L) the edge when driving without a significant load or towing. My understanding is the SD is not getting over ~16 mpg under any conditions. I guess the other downside to the 3.0L is if you are frequently towing a trailer the total weight (11.300 lbs for me) is limited if you want to tow a larger travel trailer, etc. I'd be interested to hear from others on the forum on their experience towing heavier trailers 9-11,000 lbs with the 3.0L PS regarding mpg, DEF consumption, etc.

 

[navyR113]

@thegert87 - 4x2 is what's allowing you to achieve the magical 30 MPG on the highway.

4x4 suffers parasitic loss due the front axles always spinning on the Lariat and above trim levels, but I was happy to get over 27 MPG on both legs of my trip down to Charlotte last month.

Glad to hear things are for the better.

Sure would be nice if there was a way on these to fully disengage the front axle (manual style wheel hubs, etc) when 4wd is/will not be needed. Super duty's still have manual front axle hubs- entirely different setup, I know- but a guy can dream.