HVBJB means what?

[ThatGuyLando]

BTW: It doesn't come up as much in searches, but the '23 models all have updated HVBJB which are not faulty from the factory. If you are buying a used MachE, you either want one that's been replaced, or likely there are runs from late '22 with the updated part.

I bought a '23 after reading all the HVBJB problems.

I don't this is FULLY accurate, there have been 23's with hvbjb issues and people with prior vehicles going through multiple replacements.

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[kennethjk]

This is one of my biggest pet-peeves about this forum. Where do those people supposedly get their data? The answer - they don't. They make up claims to push their agendas or because they own stock in Ford or some other strange reason. It's like they are married to Ford and ignore all actual data.

In the height of all of this, about 11 months ago, two of us were helping Ford diagnose, triage and assist with the process of getting people who had HVBJB failure back on the road. I kept track of some of that data which is located here. The data was just forum members, nothing more. So if we have 60 failures in the month of September and the forum is representative of 20% of owners (make it whatever number you want, but I doubt 20% of owners are on this forum) then extrapolate that out. If it's 20% then that's 300 failures in a month when they sold 1500 MME's. The reality is that it's not 3-5%, especially with GTs, as some people allege. Those are just numbers they are pulling out of their ass.

Only Ford knows the real numbers. However, based on my personal involvement it's not a small number of failures. All but 1 person who I know personally that owns a GT MachE has had failure. Some have had multiple. I would go with the data, not with what some random forum members who have strange fantasies about Ford.

I fully agree.

personally I think this is a cluster F and they are clueless as to what to do.

thats just a guess by me of course. whats the tolerance level of parts that car manufacturers seek, 1%? More, less, I don’t know what it should be but no car should break going up the grapevine.

some people want a frunk button, I want an HVBJB that is robust, not a deficient unit we have been given and admitted by Ford.

 

[MellowJohnny]

My $2, for what it's worth (inflation dontcha know...)

Until they re-architect the whole HV system I don't think it will be fully fixed. That ship has sailed IMO. Had they been able to provide a robust fix they would have the first time around, with the late '22s & warranty fixes. @heisnuts finally gave up the ghost after, what, three replacements? I lost track. We keep seeing failures, even in the "new" HVBJBs, so...not fixed.

With a Premium AWD SR I don't worry about it, but I won't be surprised if at some point it happens.

 

[lazydot]

High Voltage Battery Junction Box

OK, now everyone after this one be funny.

Habitual vaporing badly-designed junkton box

 

[bbhaag]

So um...that is a great tear down vid but he doesn't really go into any specifics on what the HVBJB is actually responsible for.

My question was that....besides providing energy from the high voltage battery to the motors what else is the HVBJB responsible for?

 

[heisnuts]

My $2, for what it's worth (inflation dontcha know...)

Until they re-architect the whole HV system I don't think it will be fully fixed. That ship has sailed IMO. Had they been able to provide a robust fix they would have the first time around, with the late '22s & warranty fixes. @heisnuts finally gave up the ghost after, what, three replacements? I lost track. We keep seeing failures, even in the "new" HVBJBs, so...not fixed.

With a Premium AWD SR I don't worry about it, but I won't be surprised if at some point it happens.

It was five failures, but who’s counting ?. However, I am a very unusual case sine I spent most weekends out in the country on open roads with lots of WOT opportunities and some were coming out of turns on pretty good upslopes.

As I mentioned on my previous thread, engineering was so interested in my case I agreed to have a data tracker installed and spent 7 hours out in the country showing them the routes and giving them all the background data so they can continue looking for a solution. I will tell you I got the impression they are still very committed to getting this issue solved. How soon that is of course remains to be seen.

 

[Maquis]

So um...that is a great tear down vid but he doesn't really go into any specifics on what the HVBJB is actually responsible for.

My question was that....besides providing energy from the high voltage battery to the motors what else is the HVBJB responsible for?

The essential function is to connect and disconnect the HVB from power and charging circuits. Accomplished by using 2 contactors (big relays) that are apparently marginally sized to do the job.

 

[kennethjk]

It was five failures, but who’s counting ?. However, I am a very unusual case sine I spent most weekends out in the country on open roads with lots of WOT opportunities and some were coming out of turns on pretty good upslopes.

As I mentioned on my previous thread, engineering was so interested in my case I agreed to have a data tracker installed and spent 7 hours out in the country showing them the routes and giving them all the background data so they can continue looking for a solution. I will tell you I got the impression they are still very committed to getting this issue solved. How soon that is of course remains to be seen.

I wonder if there has ever been any other car, that has had one part fail so many times doing the same thing.

anybody care to chime in?

 

[heisnuts]

I wonder if there has any other car, ever, that has had one part fail so many times doing the same thing.

anybody care to chime in?

I think I hold the record. Maybe they will name the fix after me ?. The He Is Nuts box has a nice ring to it…

 

[DevSecOps]

I wonder if there has any other car, ever, that has had one part fail so many times doing the same thing.

anybody care to chime in?

I'll say this. I know for a fact that NHTSA investigators are looking at the issue again. I also know for a fact that they are considering additional actions against Ford and the issuance of an expanded recall. If any of that will come to fruition I have no idea, but they are looking into it still. This was as of 2 weeks ago. So, if NHTSA was satisfied with Ford's response and "fix" they wouldn't still be investigating like they are. Ford and NHTSA know that there's still a big issue.

 

[kennethjk]

I'll say this. I know for a fact that NHTSA investigators are looking at the issue again. I also know for a fact that they are considering additional actions against Ford and the issuance of an expanded recall. If any of that will come to fruition I have no idea, but they are looking into it still. This was as of 2 weeks ago. So, if NHTSA was satisfied with Ford's response and "fix" they wouldn't still be investigating like they are. Ford and NHTSA know that there's still a big issue.

Best news I have heard, Ford should be made to do a proper recall, my fear though is since they are not sure of the fix it won’t mean anything. I would still take a new more “robust” one.

 

[Maquis]

Best news I have heard, Ford should be made to do a proper recall, my fear though is since they are not sure of the fix it won’t mean anything. I would still take a new more “robust” one.

Proper sizing of electrical contactors isn’t rocket science. My opinion is that Ford knows what it takes to fix this, but doesn’t want to spend the money.

I think I hold the record. Maybe they will name the fix after me ?. The He Is Nuts box has a nice ring to it…

Too long….just go with “Nutbox”!

 

[kennethjk]

Proper sizing of electrical contactors isn’t rocket science. My opinion is that Ford knows what it takes to fix this, but doesn’t want to spend the money.

If it’s because of money then this is negligence besides being shortsighted

When they are sued and discovery takes place and they find out they knew all along they will have lost me as a future customer

Probably lost me anyways , it’s not the problem that bothers me so much as silence and maybe a coverup.

It’s always about the coverup that’s gets people in jail. I know I am exaggerating

In the meantime Farley goes on his PR tours smiling away. His tour should be in an MME GTPE over the grapevine, would love to hear what he would say then.

 

[ThatGuyLando]

If it’s because of money then this is negligence besides being shortsighted

When they are sued and discovery takes place and they find out they knew all along they will have lost me as a future customer

Probably lost me anyways , it’s not the problem that bothers me so much as silence and maybe a coverup.

It’s always about the coverup that’s gets people in jail. I know I am exaggerating

In the meantime Farley goes on his PR tours smiling away. His tour should be in an MME GTPE over the grapevine, would love to hear what he would say then.

We're talking about a company that's going on 2+ years with a parking button that does jack squat because of "supply shortages", and that button could be made useful with a software update to just route it to the reverse camera. I have 0 faith in them actually fixing a problem until it either causes an accident which gets news coverage, or they're forced to do it legally.

 

[Kamuelaflyer]

I sure hope you’re right about 23’s not having problems but there are more reports of 21’s with replaced HVBJB‘s going bad. Why?

Just a heads up PSA for the new folks here. Every single model year of the Mach-e has had cars with HVBJB failures, including 2023s and the 2022s built after the HVBJB part change over. Some cars have had multiple failures including failures of the new replacement HVBJB.

The percentage of cars who have had the failure is fairly low. A fact that is of very little solace to those with the failure.

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