faulty HVBJB on July 2022 built MME (updated title: Failed---> Faulty)

[venture_ed]

Bought my MME on 17 August 2022 only to have it break down with a failed HVBJB 10 days later on 27 August. This car was built on 14 July 2022, over a month after the availability of the replacement HVBJB part. In other words, Ford is continuing to put a known and documented defective part in 2022 MMEs. The car is currently at the dealership with a 2 week wait on the replacement part. No rental car, no loaner. Not reasonable.

Update-Some kind folks on this site pulled the fault history and this car was throwing errors before it left the lot. It could have been the HVBJB itself was defective from the start, but now makes me wonder if there is even an issue with the HVBJB and/or the failure is symptomatic of some other issue. In short, it sounds like the dealer should have caught this during inspection and never let me take the car w/o this issue being fixed. In some ways, this makes me feel better about the reliability of the MME because infant mortality is an unavoidable feature of modern manufacturing (I work in aerospace and it's an issue with even the most reliable components). I have some other less positive thoughts about the quality control at my dealer.

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[Neil4Real]

Which Mach-e do you have? Select, GTPE, etc.

 

[sotek2345]

Bought my MME on 17 August 2022 only to have it break down with a failed HVBJB 10 days later on 27 August. This car was built on 14 July 2022, over a month after the availability of the replacement HVBJB part. In other words, Ford is continuing to put a known and documented defective part in 2022 MMEs. The car is currently at the dealership with a 2 week wait on the replacement part. No rental car, no loaner. Not reasonable.

Have you contacted Ford corporate? They should absolutely be giving you a loaner.

 

[venture_ed]

Select, AWD

Talked to ford customer service today. They gave me a case number and said someone for the EV team will contact me. We'll see...

 

[jason330i]

Bought my MME on 17 August 2022 only to have it break down with a failed HVBJB 10 days later on 27 August. This car was built on 14 July 2022, over a month after the availability of the replacement HVBJB part. In other words, Ford is continuing to put a known and documented defective part in 2022 MMEs. The car is currently at the dealership with a 2 week wait on the replacement part. No rental car, no loaner. Not reasonable.

damn it! sorry man.

 

[scoopman]

So the HVBJB failed within 10 days of receiving the car?

That's not good, but perhaps it was a manfuacturing defect?

The pattern we've seen with the older design HVBJBs is that they take a bit to get damaged and fail, so this might evidence a badly-manufactured part since it failed so quickly, and on a non-GT car as well.

 

[kennethjk]

Maybe best to reach out to EV team immediately yourself. If your new robust part failed I hope @scoopman is correct, that it’s just a defective part, because if he is wrong and this new part is not robust enough, we are in for a heap of trouble.

 

[venture_ed]

Well, over 10 days, I took three round trips up to the mountains, driving from 5,300 feet to 10,500 feet in the coarse of 100 miles. I was driving easy in whisper mode, but that's still a heavy load. No excuse though, since every other modern model car in Colorado can make the trip routinely.

 

[RedDragon]

wow im really curious here. Keep us up on what you learn!

 

[Vulnox]

Yeah it's early to say it's the same problem. If you want to send me the VIN I can check in OASIS and see what codes were thrown.

 

[venture_ed]

Maybe best to reach out to EV team immediately yourself. If your new robust part failed I hope @scoopman is correct, that it’s just a defective part, because if he is wrong and this new part is not robust enough, we are in for a heap of trouble.

I don't think there was a new-design HVBJB in that car. The dealer tried to order the old part as a replacement and first told me the part was backordered. I had to tell them what the right part number was. I highly suspect, they just gave the part number on the broken part to their parts department. But, I will confirm with them what part number was in the car.

 

[chrisGT]

The new part has "beefier" contractors but it still has the same design drawbacks as the original design. It might be less susceptible to failure but without active cooling or a temperature sensor, I still don't see how the new contractors will not melt under certain conditions.

Of course this is my opinion and time will tell how robust the new part is.
I just bought another car and I started the sale process for my GT because I don't trust the car because of the HVBJB. I will post about that in a separate thread.

 

[Vulnox]

I don't think there was a new-design HVBJB in that car. The dealer tried to order the old part as a replacement and first told me the part was backordered. I had to tell them what the right part number was. I highly suspect, they just gave the part number on the broken part to their parts department. But, I will confirm with them what part number was in the car.

Hopefully the EV team is able to shed some light. Much like engines there can be multiple failure causes within the same part. Sorry you are dealing with it, but trying to remain optimistic it was just a manufacturing issue on this one and not ongoing issues. But it's why I suggested to someone asking about trading in their early 2022 for a 2023 because they are worried about the problem to give it six months to make sure Ford really nailed it down.

 

[kennethjk]

I don't think there was a new-design HVBJB in that car. The dealer tried to order the old part as a replacement and first told me the part was backordered. I had to tell them what the right part number was. I highly suspect, they just gave the part number on the broken part to their parts department. But, I will confirm with them what part number was in the car.

I thought you had mentioned in was built in July and I thought, maybe incorrectly, that all cars built after 5/27/22 or thereabouts had the new part.

 

[Vulnox]

I thought you had mentioned in was built in July and I thought, maybe incorrectly, that all cars built after 5/27/22 or thereabouts had the new part.

Yeah, I think they were just saying they aren't sure since their parts department tried to order the old part number, which they may have been using the current part number as reference.

Probably just the parts manager having the old part written down in a list of common parts though.

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