Has anyone had FSA 21N08 reflash done yet?

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Soliyou

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Can you describe this shudder? When does it happen? Does it goes away with more throttle?
 

FlyBry

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If you Search this thread, you will the many responses

Field service 21N03​

My FordPass app now shows 21N03 instead of 21B10. Did anybody else’s app change? What is the difference? They performed 21B10 a couple of weeks ago, but it still has the cold start rattle. I’m scheduled to take it in September 13th for them to look at it again.
 

scottdm

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I had the 21B10 reflash today. No shudder, but it still has the cam phaser rattle. Dealer ordered the parts to replace the cam phasers and will schedule replacement when the parts arrive. Has anyone been able to confirm if the new parts are an improved design, or will I be dealing with the same issues in another 30K miles?
 
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bill_b

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Can you describe this shudder? When does it happen? Does it goes away with more throttle?
it happens when slightly under load around 20-30mph. The trans feels like its in too high of a gear because it drops down to around 1100rpms with a slight bit of throttle, if I increase that it eventually goes away when the vehicle reaches 1500rpms or down shifts. For example the other day I was in 6th gear at 22mph and 1100rpms going up a slight grade... this is with the max tow package (shorter gearing).

The FSA I had performed 2 weeks ago was actually supposed to remedy the original reflash that screwed up my vehicle to begin with (my exp didn't do this prior to the cam phaser reflash 21B10 that did absolutely nothing in terms of remedying the rattle).

I can't confirm the cam phasers are revised, but I can confirm mine still rattles lol. I believe mine is wastegate though at this point.
 

Soliyou

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it happens when slightly under load around 20-30mph. The trans feels like its in too high of a gear because it drops down to around 1100rpms with a slight bit of throttle, if I increase that it eventually goes away when the vehicle reaches 1500rpms or down shifts. For example the other day I was in 6th gear at 22mph and 1100rpms going up a slight grade... this is with the max tow package (shorter gearing).

The FSA I had performed 2 weeks ago was actually supposed to remedy the original reflash that screwed up my vehicle to begin with (my exp didn't do this prior to the cam phaser reflash 21B10 that did absolutely nothing in terms of remedying the rattle).

I can't confirm the cam phasers are revised, but I can confirm mine still rattles lol. I believe mine is wastegate though at this point.

At these situations, I have roughness felt through the pedals and floor, but I won't classify it as shudder (yet). What you are describing is torque convertor shudder induced by improper calibration.

I am not sure what is wrong with Ford Engineers! the 21N08 was released to fix this problem, yet it doesn't :mad:

Ford also decided to extend the warranty on the cam phaser to 70k miles, but after this the owner pays certain percentage up to 90k miles (or 99 not sure). Problem is that some owners with Ford extended warranty (ESP) had to fight to get it replaced under the ESP with only the deductible (see this). Ford reps claimed that since there is an extended warranty issued for this problem, they have to follow that document and not the ESP. Accordingly, even if you have the ESP, prepare to fight to get it repaired under warranty. Not cool at all!
 

3rd Expyowner123

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I had my 2018 Expy cam phasers replaced under warranty at 48k miles. At 53k miles had the 21B10B (titled for cam phaser rattle). My cam phasers did not rattle after replacement. After the 21B10B , I think the engine is programmed to crank a little longer before starting. This is just my theory. The flash also impacted how transmission shifts. I notice that the truck will shudder just like a vehicle with a manual transmission when you have it in too high a gear for the speed you are going. The truck seems to shift up in a quicker sequence than before. I think the truck is operating in city driving a lower rpms (the transmission is up shifting quicker and or at lower mph of the vehicle). I also think my fuel economy has improved with city driving. Another words seems like normal drive mode behaves like a economy drive mode.
My Ford App is showing 21N03 and 21N08 recall notices. Looking at my cam phaser replacement invoice, it shows the work done as warranty work not as a recall. Perhaps this explains why I would have the 21N03 notice.
 

Grizguy

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It is called a customer satisfaction program. I got my "recall notice" notice today for my 19 expy. I have had no issues with anything so far.. but an disappointed with it.. I was expecting more of a truck.. not a soccer mom car.
 

Soliyou

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Today I felt the shudder . Was heavy loaded, in 6th gear, around 25 mph on a slight incline.

I am actually pretty annoyed. I have many other problems with this truck (front shocks, wheel bearings, front diff) that I am seriously thinking to get rid of it.
 
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