Field service 21N03

[Fozzy]

Mine just showed up with the 21N08 and I still have the 21B10 showing. I wonder if getting the 21B10 is worth a shot now that I have the new update. Not sure why they need to program the transmission to get oil pressure in the cam phasers anyway. My 10R80 shifted like crap when I first got the truck, but I am either really use to it or it has learned my driving style. The easiest fix for the cam phaser rattle is just to auto start it while you're in the house listening to music.

 

[5280tunage]

Just curious, I also have the 21N08, and 21B10. Any one had both of these done? Trying to figure out if they are legit or even worth it. Of course I'm sure they will update the ECU strategy so I'll have to pay to get tunes updated. Yay!

edit: by legit I mean, I know the first one was yanked due to some issues. are these the ready ones? Anyone had both done?

 

[MikeS3000]

So not 100% sure this is cause and effect but this is a first time issue. We had some maintenance done at the dealership a few weeks ago including the 21B10 reprogram. Today I approached a stop sign and the auto start/stop kicked in and shut off the engine as usual. I released the brakes and the engine did not start. I got a message to put the vehicle in park and restart the vehicle manually. It did turn back on. The engine rattle on startup is still present after the flash. I now see in my ford pass app the 21N08 and 21N03 available. Is this engine shut off potentially related to the 21B10 flash? Is this a sign that the cam phasers are failing? 2018 vehicle with 55k miles on it.

 

[5280tunage]

No one else had both done recently?

 

[Highlightreel]

I had those both on my app recently and I looked yesterday and today and then online today and both are now NOT considered Recalls but are now under the heading CUSTOMER SATISFACTION PROGRAMS (and it shows 0 recalls). Both are listed there.

 

[Soliyou]

No one else had both done recently?

I got them done one week ago. The tech did the first one, reported no shudder, so he didn't do the second one.

Don't feel any major difference, but the transmission seems to be a bit clunkier than what I can remember before the update. This could just be in my head as I didn't have enough time to test it properly.

 

[5280tunage]

I got them done one week ago. The tech did the first one, reported no shudder, so he didn't do the second one.

Don't feel any major difference, but the transmission seems to be a bit clunkier than what I can remember before the update. This could just be in my head as I didn't have enough time to test it properly.

Thanks, I'm curious if it changes the ECU strategy, likely. My guess is the tranny feels different as they likely reset the ECU after the update which invokes the tranny re-learn if you will. Just a hunch.

 

[stefan gimenez]

Just scheduled both of mine for Monday( 10/4) Well dropping the truck off so who knows when they will get to it. 77K miles on my 2018 and its been doing it for as long as I can remember. Before snowmobile season starts I want it at least looked at.

 

[MikeS3000]

So still having the engine shutoff problem w/ auto start/stop. The dealership flashed 21N08 today and reported cam phasers are bad. They are going to book me a month out to replace them. Hopefully the engine shut off is fixed after either this new ECU flash or after the cam phasers are replaced.

 

[Fozzy]

Posted this video in the other thread as well. Basically there are two versions of the 21B10. Flash with no shudder and flash with shudder. 21N08 is if the second 21B10, Flash for shudder still has the shudder. The tech unplugs the oil pump, if the shudder goes away they re flash to as built stock programing and you are done. If the shudder does not go away you have cam phaser problems and the next step is 21N03 cam phaser replacement.

The EXPEDITION 21B10 - Cam Phaser Rattle Program

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[SpartanML]

First post here. I had both 21B10 and 21N08 performed by a dealer in NW NJ last week. Mine is a 2018 XLT Max purchased CPO earlier this year. Had 40k miles at time of service last week, I've since put another 1k miles on. Cam phasers were obnoxiously loud prior to the service. Generally compliant now, though I'm not confident this will be a permanent fix. For the time being I'm glad it was a success.

I should also add I use this for work and have already put 11k miles on since purchasing. Overall very pleased, this is my third Expedition, though my first 4th gen.

 

[wakeboarder]

I received a letter from Ford via snail mail related to these field service actions. I will scan it tomorrow and post it.

 

[Going_Going_Gone]

I have had the message on my Ford Pass app for a while now and we just received our letter today. I've decided to NOT accept the 21B10 service action when it goes in for service again. I have no noises with mine, the transmission shifts flawlessly, and the best thing: the Auto Start Stop function has stopped working even with a fully-charged battery. The way I look at it, I have plenty to lose and nothing to gain. And, if I got it and it made things worse; I'd have to schedule another service appointment and spend more time bringing it back.

This sounds like the approach to Sync3 issues as reported on the Lincoln Forum...one step forward, two steps back; but, "we're working on it."

 

[Soliyou]

I have had the message on my Ford Pass app for a while now and we just received our letter today. I've decided to NOT accept the 21B10 service action when it goes in for service again. I have no noises with mine, the transmission shifts flawlessly, and the best thing: the Auto Start Stop function has stopped working even with a fully-charged battery. The way I look at it, I have plenty to lose and nothing to gain. And, if I got it and it made things worse; I'd have to schedule another service appointment and spend more time bringing it back.

This sounds like the approach to Sync3 issues as reported on the Lincoln Forum...one step forward, two steps back; but, "we're working on it."

I think somewhere in the letter, Ford states that if the update is not performed in a timely manner they may deny warranty coverage related to cam phasers.

 

[sjwhiteley]

I think somewhere in the letter, Ford states that if the update is not performed in a timely manner they may deny warranty coverage related to cam phasers.

I have just received the letter. I have no engine issues, but read the same thing. I’m at 20k. Setting up and doing the old warranty thing is a pain from a logistical standpoint, especially when nothing is actually broken (maybe I just don’t know it, yet?) the deadline to get it done is feb 2022.

 

[wakeboarder]

I have just received the letter. I have no engine issues, but read the same thing. I’m at 20k. Setting up and doing the old warranty thing is a pain from a logistical standpoint, especially when nothing is actually broken (maybe I just don’t know it, yet?) the deadline to get it done is feb 2022.

Mine didn’t start making the cam phaser noise until about 25,000 miles.

 

[Jigstick]

I had my computer flashed yesterday. 2018 with 50k miles on it. I still get the rattle on start up. My dealer said they will now replace the cam phasers under the field service report. Question though....is the rattle coming from the actual cam phasers or the timing chain? Certainly sounds like timing chain slap to me.

 

[5280tunage]

Hey, quick question on this update. I have mine scheduled in about two weeks (dealer was scheduling out 4 weeks, nuts) but I was curious for anyone that has done it, and that uses a tuner, does this update change the ECU strategy code?

 

[MxRacer965]

Hey, quick question on this update. I have mine scheduled in about two weeks (dealer was scheduling out 4 weeks, nuts) but I was curious for anyone that has done it, and that uses a tuner, does this update change the ECU strategy code?

I don’t intend to do this update, but just so I know in case it gets forced on me somehow (Biden starts running Ford? ) I’m going to email 5* and find out about needing new tune or not…

 

[FlyBry]

Hey, quick question on this update. I have mine scheduled in about two weeks (dealer was scheduling out 4 weeks, nuts) but I was curious for anyone that has done it, and that uses a tuner, does this update change the ECU strategy code?

I wouldn't think so, and I certainly hope it does not. Let us know what 5star says Tunage