Powerboost defeated after changing tires

[Atlee]

i also have a 295 60 20 nitto ridge grapplers. Although i did see a drop in about 1-2 mpg, i still think its still pretty good. I also have a pedal commander that i set to eco for daily driving and it tends to stay in electric a little longer after i get it up to at least 25 mph.

What is a "pedal commander"?

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[DBL R]

What is a "pedal commander"?

A plug and play device that modulates the voltage to the drive by wire system. It can increase or decrease the sensitivity of the pedal making the vehicle feel more “peppy” or reducing pedal sensitivity to improve economy.

 

[PungoteagueDave]

It’s not the tires. I went to 185 Michelins, E-rated truck tires, 55 lbs vs 35 lbs OEM Pirellis, and only lost 1 mpg, and the EV mode kicks in fine. You’ve got something else going on. I do get terrible mileage while towing, but that’s a function of turbocharged and hybrid systems being tuned for maximum efficiency at lightest loads. Load them up and they become the least efficient modality for propulsion.

 

[wilmaj32]

Have you tried "coaxing" electric mode by lightly braking while driving? I have the same set up as you and while the electric mode is definitely reduced a bit, I can "trick" the system on when I know I will be driving for a while at low speeds with limited stopping and starting.

 

[Jimi]

Further to my last post, the only difference I've noticed is when I accelerate in electric mode, it runs out of juice slightly sooner than prior. But when I get up to speed, it coasts just about the same distance in electric as stock.

Why don't you try a active transmission learning reset first before you swap back to stock tires. I wonder if your Powerboost is somehow thinking it's towing somthing due to the sudden change of weight, and not kicking in electric mode in the software.

Hi everyone, I'm really learning a lot from you guys. I hope it isn't too dumb to ask, but what is an active transmission learning reset. I really need to know these things before I receive my 2023 Lariat Sport 502a. I can use all the help that I can get.

 

[Sarynnus]

Hi everyone, I'm really learning a lot from you guys. I hope it isn't too dumb to ask, but what is an active transmission learning reset. I really need to know these things before I receive my 2023 Lariat Sport 502a. I can use all the help that I can get.

Not a dumb question at all. The transmission learns and adapts to how you drive the vehicle to provide a more consistent shifting feel. For example If you always baby your vehicle, your transmission will learn, and shift sooner, skip gears ect...

So when you make a modification to your vehicle like a lift and bigger tires, it's a good idea to reset what the transmission learnt, and have it learn again, as those gear skips ect, may be now detrimental.

It's also a good idea to reset it when you start experiencing issues, like rough shifting.

 

[Jimi]

Not a dumb question at all. The transmission learns and adapts to how you drive the vehicle to provide a more consistent shifting feel. For example If you always baby your vehicle, your transmission will learn, and shift sooner, skip gears ect...

So when you make a modification to your vehicle like a lift and bigger tires, it's a good idea to reset what the transmission learnt, and have it learn again, as those gear skips ect, may be now detrimental.

It's also a good idea to reset it when you start experiencing issues, like rough shifting.

So, are you saying, by changing my driving habits, that changes my transmission habits?

 

[Sarynnus]

So, are you saying, by changing my driving habits, that changes my transmission habits?

That's correct, your transmission adapts to your driving habits over time.

From the owners manual:

Automatic Transmission Adaptive Learning

This feature is designed to increase durability and provide consistent shift feel over the life of the vehicle. A new vehicle or transmission may have firm shifts, soft shifts or both. This operation is considered normal and will not affect function or durability of the transmission. Over time, the adaptive learning process will fully update transmission operation. Additionally, whenever the battery is disconnected or a new battery installed, the strategy must be relearned.

 

[Jimi]

That's correct, your transmission adapts to your driving habits over time.

From the owners manual:

Automatic Transmission Adaptive Learning

This feature is designed to increase durability and provide consistent shift feel over the life of the vehicle. A new vehicle or transmission may have firm shifts, soft shifts or both. This operation is considered normal and will not affect function or durability of the transmission. Over time, the adaptive learning process will fully update transmission operation. Additionally, whenever the battery is disconnected or a new battery installed, the strategy must be relearned.

Thanks Sarynnus

 

[Snakebitten]

That's correct, your transmission adapts to your driving habits over time.

From the owners manual:

Automatic Transmission Adaptive Learning

This feature is designed to increase durability and provide consistent shift feel over the life of the vehicle. A new vehicle or transmission may have firm shifts, soft shifts or both. This operation is considered normal and will not affect function or durability of the transmission. Over time, the adaptive learning process will fully update transmission operation. Additionally, whenever the battery is disconnected or a new battery installed, the strategy must be relearned.

However anyone wants to describe Adaptive learning, it's literally a set of tables with values that eventually populate that table. So it's accurate to say that once the table is populated, it has ended its "learning" stage, so to speak.

And yes, it's a simple process to clear those values from the table, which initiates the learning procedure again. Even a dead battery can clear those tables and the truck owner might be surprised at the sudden change in the trucks behavior.

Forscan has a 1 click feature to clear the adaptive tables. Cool feature and can be helpful if needed. PCM updates will almost certainly clear those tables as well.

 

[powerboatr]

A plug and play device that modulates the voltage to the drive by wire system. It can increase or decrease the sensitivity of the pedal making the vehicle feel more “peppy” or reducing pedal sensitivity to improve economy.

how or is it dfferent from driving in sport mode? i see adds for it all the time, thanks

 

[DBL R]

how or is it dfferent from driving in sport mode? i see adds for it all the time, thanks

a few different things. Sport Mode will hold gears for higher rpm, won’t go into electric only mode (if powerboost), changes shifting firmness, and suspension response (if ccd). Adding a pedal commander could give the pedal responsiveness of sport while still allowing to cruise at lower rpms and would allow for full electric mode while driving. It would also keep you from having to flip the dial to sport mode every time you get into the truck.

 

[Snakebitten]

I had Sport Mode clicks memorized for 4 years of driving my Gen2 Ecoboost F150. 5 clicks before taking the truck out of Park. I prefer everything about so-called Sport Mode. To me it was right about the perfect shifting strategy for if the truck had a 3rd pedal, if you know what I mean. If I drove easy, it shifted where I would have. If I drove aggressive, it shifted where I would have.

However, on this Powerboost Ford decided FOR me that I wouldn't want it to be a Hybrid if I chose Sport. Whatever. Lol

They really take that label too seriously. It's nothing more than a shift strategy and a little different ramp on the throttle pedal map.

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