Powerboost changes in 2024

[bp1954fromca]

Changes made when transitioning from electric to gas on 2024 F150 PB. Apparently the change is smoother than 21-23 models.
https://fordauthority.com/2024/06/2024-ford-f-150-hybrid-gets-clever-upgrade-for-smoother-ride/

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[UGADawg96]

In 2.5 years, my 2021 has never used the BISG, so that article is a bit misleading when it says they made it smoother. They just removed an unnecessary part that has been documented here for a few weeks now in other threads.

 

[MJ Heat]

I don't know how the electric to gas, or gas to electric transition can be any smoother than it already is on my 2022. I often can only tell by looking at the tachometer or oil pressure gauge, that the power source has changed.

Thankfully, my truck also shifts gears really smoothly too. Some of this may be because I drive like the old man that I am.

 

[DT444T]

In 2.5 years, my 2021 has never used the BISG, so that article is a bit misleading when it says they made it smoother. They just removed an unnecessary part that has been documented here for a few weeks now in other threads.

What's BISG?

 

[UGADawg96]

What's BISG?

Belt Integrated Starter (Generator)

See great posts by @Snakebitten on this topic:

https://www.f150gen14.com/forum/search/5622586/?q=Bisg&c[users]=Snakebitten&o=date

 

[UGADawg96]

Or maybe it's never used the flywheel starter and it isn't detectible whether the flip from gas to electric and back is the HVB or the BISG, but either way, it would be cool if they could update the software on the 21-23s and remove the part since there is a TSB for them failing.

 

[Cobraman428]

So glad all of us 21-23 test lab rats can help out the 24 model year owners! How about get us BC 1.4 !!

 

[thebigdu]

I don't know how the electric to gas, or gas to electric transition can be any smoother than it already is on my 2022. I often can only tell by looking at the tachometer or oil pressure gauge, that the power source has changed.

Thankfully, my truck also shifts gears really smoothly too. Some of this may be because I drive like the old man that I am.

Consider yourself lucky. I often accelerate like an old man in my 2022 and have the exact opposite response from the truck. Rapid acceleration is much smoother, as I'm forcing 2nd gear.

 

[Snakebitten]

Belt Integrated Starter (Generator)

See great posts by @Snakebitten on this topic:

https://www.f150gen14.com/forum/search/5622586/?q=Bisg&c[users]=Snakebitten&o=date

Thanks for the flattering words good sir.
Yeah, I read the article and was disappointed that there was so little proofreading before publishing.

The biggest error that stuck out like a sore thumb:

"The biggest change involves the total elimination of both belt starters."

There is 1 traditional bendix/flywheel starter, and one belt integrated starter (BISG) on the 2021-2023 Powerboost.
Ford did indeed eliminate the ONE belt driven starter on the ICE.

I would really enjoy reading what the engineer actually wrote on LinkedIn, but I don't have any social media accounts and don't plan to.

For those that are curious, this is the gentleman at Ford and his link to the article can be seen without logging in, but can't be read.

Kelly Johnson with Ford Motor Company will locate his LinkedIn profile easy enough.

 

[Snakebitten]

Thank you so much @RcFlyer330

He scraped the Ford engineers statement and I got to read without joining the dark side. ????

It was shorter than I hoped, and without much detail, but let's just say software, software, software.

In summary, with 3 years of data and testing, the traction motor, which was always 1 of 3 methods for starting the Powerboost ICE, now took over the duties of the BISG. Which we already knew must be the case.

Again, that's further evidence that the BISG on the Powerboost was never a BISG, but a BIS only.

I know it's highly unlikely, but it would be cool if Powerboosts could retroactively get the BISG-defeat code. Not because I want to remove it nearly as much as ridding the truck of what now is just an unnecessary failure point. There's been a couple of fellas that had a faulty BISG and it disabled the truck altogether. I imagine the engine management software onboard can't isolate a failed BISG?

 

[UGADawg96]

Here is the post for anyone who cannot access it:

 

[Cobraman428]

I wish FORD would put that much effort into getting BlueCruise 1.4 OTA working!

 

[Severdog]

Or maybe it's never used the flywheel starter and it isn't detectible whether the flip from gas to electric and back is the HVB or the BISG, but either way, it would be cool if they could update the software on the 21-23s and remove the part since there is a TSB for them failing.

I think I have heard the flywheel starter twice in two years. It sounds like a "normal" starter with the solenoid click and very quick "chew-chew-chew" sound.

The BISG start is pretty noticeable by how different it is. If I'm sitting in a parking lot waiting for the better half to finish shopping, you'll feel a very noticeable "torque" where it feels like the engine rocks a couple of degrees on startup. Instead of the "chew-chew" sound, it truly feels like a rubber band being stretched.

My EV-ICE transition is so much smoother now than it every was, I think due to software updates.

 

[UGADawg96]

I think I have heard the flywheel starter twice in two years. It sounds like a "normal" starter with the solenoid click and very quick "chew-chew-chew" sound.

The BISG start is pretty noticeable by how different it is. If I'm sitting in a parking lot waiting for the better half to finish shopping, you'll feel a very noticeable "torque" where it feels like the engine rocks a couple of degrees on startup. Instead of the "chew-chew" sound, it truly feels like a rubber band being stretched.

My EV-ICE transition is so much smoother now than it every was, I think due to software updates.

I don't recall this truck ever starting not in electric first. And when the ICE finally does kick on, it is smooth, no truck rock.

But maybe the truck shake when idling at a stoplight going from E to ICE (what feels like a tractor trailer shifting side rocking if you've ever driven one) is the BISG, but when in motion it is the HVB system ?

 

[Samson16]

Two belt starters lol.

Hopefully the continued software updates render the BISG a piece of “abandoned in place “ hardware for pre-24 models.

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