TSB 23-2347? Powerboost

[Bclingam]

So my 23 Platinum Powerboost left me stranded about 10 miles from home. I stopped for a stop sign and continued on when the shifting seemed different and did not have much power, lots of faults, hi volt battery, sensors, wastegate turbo, Stop Safely Now, which I did. Towed to local dealer, they had for almost a month, they said it just needed the modules updated. Picked truck up this last Monday, drove for 3 miles and check engine light came on, went right back to dealer, they then said the starter and alternator need replaced. They called me Friday and said its fixed, so far all good.

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[Snakebitten]

That's actually the BISG, belt integrated starter. Not sure why the tech used the word alternator.

It's the gold component, and admittedly does resemble the traditional ICE alternator visually.

But plays a very different role on the 3.5 Ecoboost in the Powerboost

 

[Gros Ventre]

Interesting that if the HV system is non-op, the engine will not start. This even though the engine is cranked by the block mounted starter motor powered by the 12 VDC battery.

 

[Gros Ventre]

Note that a typical alternator cannot be run as a motor. In order to run in a DC system as either a motor or generator it must be a DC machine. The only difference is what the commanded excitation is. Note that an AC synchronous machine can either motor or generate. This does not look to be a synchronous machine and the wiring to it would be far more complex if it were. Ford calls it a BISG, Belt integrated Starter Generator, because it can do either function by simply changing the commanded excitation.

 

[Snakebitten]

The fact that the OP stated multiple alerts, including the Stop Safely Now, that definitely supports the claim that many of these alerts are less specific (borderline generic) than one might think.

If in fact this truck is repaired and continues to function properly, I'm actually impressed at the technicians understanding of the pinpoint procedures. Good job.

 

[Snakebitten]

Took me a while to figure out the technicians typo on the work order

 

[Samson16]

Hope that fixes the issue. BISG fails and the vehicle stumbles transitioning to ICE setting off multiple codes. Makes sense with hindsight but kudos to the tech for keeping his head down and working the steps.

 

[Bclingam]

I really want to thank all that have chimed in, and appreciate all the vast knowledge that is available here. When I went to pick up my truck, I was able to talk directly with the Tech. I told him I was concerned that the SSN update tsb 23-2317 was applied. With the knowledge from this forum I showed him info related to the SSN, he then took my truck back and verified that the GWM did in fact have the recent update. I am know very impressed with my Tech.

 

[Snakebitten]

Just being able to get access to your tech personally isn't something most Ford Powerboost owners can do.
And him treating you respectfully after you even mention a forum, makes me impressed with him too.

This is exactly what it is supposed to be like if/when a customer has an issue with their Ford product.

 

[mxwrk]

I believe I am having the exact same issue, except mine went away after I shut the truck off for a few minutes and has been ok since on a short drive. Taking it to the dealer today...hopefully this expedites their diagnoses.

 

[Jerome10]

I've got a couple questions about this TSB 23-2347. My truck has been getting the attached message for the past few days. The TSB notes that the "engine may exhibit a powertrain malfunction indicator lamp (MIL)" Is this message technically a "MIL"? Or would an MIL result in a check engine light or some other type of permanent message or indicator lamp?

The dealership at this moment is doing a deep draw test on my 12V battery. The quick check yesterday indicated that the battery showed good.

If the 12V battery fails this test, and they replace the 12V battery under warranty, is that sufficient? I'm assuming that this TSB will only truly apply if the 12V battery tests as good? If the battery tests as good then we know there has to be a charging problem = this TSB is likely to apply?

And then I've also had the stop safely now (SSN) message once since owning the truck. Was several months back. At the time I'd never had a 12V low warning message. Does the TSB 23-2347 relate at all to the SSN warning? There is another TSB 23-2317 released in October 2023 regarding the SSN warning.

I try to let my dealer work through their process, and I've had other dealers and other makes in the past where presenting a TSB has almost "insulted" them (the comment were something like the internet is usually wrong).... so I'm always a bit hesitant to bring up the TSBs.

I guess my last question related to the SSN is that I got the truck started just maybe 2 minutes after receiving the SSN message. Truck ran fine but the check engine line remained illuminated. Drove straight to the dealer, he scanned and found code U0111. I asked him to just clear the code/check engine light as I didn't have the time to leave the truck at the dealership. If he "cleared the code" is that error still stored in the truck or has it basically been permanently erased? Meaning if I ask them to scan for the SSN error codes, are they going to see it or I have to wait for the SSN to occur again and then they'll find it?

 

[Jerome10]

Just following up on my above post.... the 12V battery failed the Rotunda long battery test. New 12V battery installed under warranty. Hoping it truly is the only problem and not something bigger related to the BISG. Its always nice when it is hopefully something simple like a bad battery.

So far so good. Will monitor over the months and see if the low 12V battery issues return.

 

[patmulligan99]

Figured I’d chime in. Bought truck with 29,000 miles. Warranty history showed previous owner had stop safety now power fault issues and P0A1E codes. Battery had failed test so they replaced it. I have it now and I got the service engine soon. P0A1e code. Battery PASSED. All connections PASSED. Dealer said Pinpoint is telling them to replace BISG, also due to history. Part ordered in tomorrow said should be done by COB.

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