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

DevSecOps

Well-Known Member
First Name
Todd
Joined
Sep 22, 2021
Threads
69
Messages
4,764
Reaction score
11,624
Location
Sacramento, CA
Vehicles
'21 Audi SQ5 / '23 Rivian R1T / '23 M3P
Occupation
CISO
Country flag
Mmmmhmmm

And, Never said you could order an old part...
I think the problem is that you made a comment of fact and now you're doubling down on that.

If you have proof that Ford "sifted" old HVBJBs then please provide that proof. Otherwise maybe your comment should be phrased as a question or assumption instead of a fact.

Many of us have heard direct from Ford corporate that the old parts are purged completely, which goes against your claims. Additionally, this car was doomed from the start based on the data we have. It's unfortunate, but that happens.
 

Howard

Well-Known Member
First Name
Howard
Joined
Jun 1, 2022
Threads
0
Messages
220
Reaction score
189
Location
West TN
Vehicles
'23 Premium RWD ER CG Mach E & '25 Blazer RS EV
Country flag
I have a 2022 MME Select AWD that was built in April 2022. The following part number was originally posted on forum as replacement HVBJB for this trim level: NK4Z-10C666-B. On July 7th, I had Service Manager at dealership order a new HVBJB for my car. When they ordered the part, the part number was changed automatically from the above part number to NK4Z-10C666-C. @DevSecOps (I believe) reported this change in part number for this trim level as well on another post. Maybe some of the -B parts made onto some of vehicles before being pulled. This is assuming that your HVBJB failure is same as others. Pure speculation on my part but it is another data point to reference. Sorry this happened to you so soon after you got the car. Hang in there and please keep group updated.
 

ripperAZ

Well-Known Member
First Name
Ripper
Joined
Mar 4, 2022
Threads
17
Messages
724
Reaction score
949
Location
AZ DESERT
Vehicles
2022 Ice White Mustang Mach E AWD EX BATT
Country flag
Yikes. I feel for you. Let’s all agree that this is a Ford and a dealer problem for even releasing that little pony when it was coding at the dealership before he even took it.

I wonder what part will go in my 10/10 build if it ever happens. I wonder if FMC even knows???

Jes sayin
 

Mach1E

Well-Known Member
Joined
Sep 5, 2021
Threads
93
Messages
10,509
Reaction score
13,295
Location
Florida
Vehicles
69 Mach 1, 11 GT, 21 GTPE- sold, 24 Taycan 4S, 20 F type R
Country flag
Yikes. I feel for you. Let’s all agree that this is a Ford and a dealer problem for even releasing that little pony when it was coding at the dealership before he even took it.

I wonder what part will go in my 10/10 build if it ever happens. I wonder if FMC even knows???

Jes sayin
Definitely stinks.

Unfortunately I don’t think there was a reasonable way for the dealer to catch it if it wasn’t showing any service lights.

It’s not like they hook up and pull codes on a vehicle before delivery if the dash doesn’t show anything.

Will be interesting to hear if this was a HVJB failure or what.

My mechanic buddy taught me one important lesson years ago about “new parts.”

New stands For:

N ever
E ver
W orked
 


agoldman

Well-Known Member
Joined
Jan 23, 2020
Threads
54
Messages
3,007
Reaction score
2,482
Location
Charleston, SC
Vehicles
2024 Mach E GT vapor blue- perf pack-alloy wheels
Country flag
Has Ford "Case" contacted you yet?
 

dnlsatriani

Well-Known Member
First Name
Daniel
Joined
Nov 16, 2021
Threads
9
Messages
108
Reaction score
68
Location
Phoenix
Vehicles
Mustang
Country flag
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.
Man ive got my car on 08/17 and broke 4 days after. I just got it fixed from the dealership.
 

ripperAZ

Well-Known Member
First Name
Ripper
Joined
Mar 4, 2022
Threads
17
Messages
724
Reaction score
949
Location
AZ DESERT
Vehicles
2022 Ice White Mustang Mach E AWD EX BATT
Country flag
It’s not like they hook up and pull codes on a vehicle before delivery if the dash doesn’t show anything.
Yeah I get that. Obviously the factory shouldn’t have let it go out with Codes showing if they don’t signal to the driver. I would like to think the dealers would run standard diagnostics and check for any code failures and updates and OTA’s before delivering the car but I believe that I’m living in a fantasy world because apparently that process takes so long that they won’t even consider it. My experiences at the dealer level were not good in early 2021 and led to me selling both of mine and waiting for two more. From my experience, the dealer was a low point as they really knew nothing about the E pony or how to handle her. I literally watched them unpack the manuals and diagnostic tools for electric vehicles so mine might’ve been the first they touched . Both sat for over 40 days waiting diagnoses and parts as I prepared to sell them at a profit. Keep us informed of your journey Jes sayin. Best wishes
 
OP
OP

venture_ed

Member
First Name
Ed
Joined
Sep 6, 2022
Threads
1
Messages
12
Reaction score
27
Location
Colorado
Vehicles
Mustang Mach E
Country flag
Man ive got my car on 08/17 and broke 4 days after. I just got it fixed from the dealership.

What ended up being wrong with yours? I'm guessing our cars have similar build dates so wondering if perhaps parts from the same lot got installed. I'm a little skeptical that it is the HVBJB that has failed given the early faults that were recorded.
 

EELinneman

Well-Known Member
First Name
Eric
Joined
May 4, 2021
Threads
96
Messages
1,482
Reaction score
2,423
Location
Littleton, CO
Vehicles
Mustang Mach-E GT Performance Edition
Occupation
Sr. Dir Cloud & Projects
Country flag
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.
What dealer? I'm going through a shit show with Autonation Ford in Littleton for this same failure. Wondering if it's dealer related, or make that how much is dealer related.
 
OP
OP

venture_ed

Member
First Name
Ed
Joined
Sep 6, 2022
Threads
1
Messages
12
Reaction score
27
Location
Colorado
Vehicles
Mustang Mach E
Country flag
What dealer? I'm going through a shit show with Autonation Ford in Littleton for this same failure. Wondering if it's dealer related, or make that how much is dealer related.
Sill TerHar in Broomfield. Service guy has been good to work with, but the MME is clearly a new animal they're still learning how to deal with.
 

DadzBoyz

Well-Known Member
First Name
Dan
Joined
Jun 6, 2022
Threads
53
Messages
743
Reaction score
807
Location
Oldsmar, FL
Vehicles
22 Mustang Mach-E GTPE (ordered), 20 Mazda CX-5
Occupation
Software Systems Integrator
Country flag
So we're saying we shouldn't expect the dealer to check for codes on new cars before delivery.....
So we're paying for "Dealer Prep" (aka ADM, aka add-on charges) but dealer prep shouldn't include prepping the car for delivery?

Anyway, there is a way the dealers could see what's going on, if anything, without having to run every car through the service department prior to delivery.

IF FoMoCo had more experience in software dev, they could/would:
  • Have 6+ System States built into the cars:
    1. Build - For the factory, Ford BEV service, or other Ford corporate access
    2. Dealer - Factory changes car to Dealer when leaving factory. No access to proprietary info or code. See below
    3. Lot/Test Drive - Dealer changes to this after car has been accepted car prepped
    4. Owner - Once sold, Dealer changes status to owner once sold.
    5. Service Intake - Service department status to access to codes, diagnostics, testing, etc. This could also help with car intake into service as the intake advisor could immediately see codes, have an estimate of services needed, time needed (loaner....), etc. before the tech even sets eyes on it.
    6. Service Tech - For actual work on car.
  • When in Build, Dealer, or Service Intake/Tech, all codes trip a light in the dash, preferably the larger interactive screen. This would allow the dealer to go straight to a screen with code details. These cars are also computers. The OBD2 ports are great, and I'm sure they're still useful in plugging into the larger diagnostic systems, but why not enable the computer in the car to report on the codes on the computer screens built into the cars???
  • These cars are connected over Cell and/or Wifi. They should be connected to FoMoCo 97% of the time (accounting for low cell signals). Because it's connected, the car should send any codes to FoMoCo, Ford's BEV team, and possibly, the registered servicing dealer. Ford BEV Service or the dealer service department could contact the owner to schedule an appointment (customer service is a good thing).
    • Side note. Even when the car is not connected to Cell or Wifi, many are connected to the owner's phone. The car could record and report status and codes through the phone when there is no signal
    • Side, Side note. The car CAN record codes and report them when re-connected.
    • So there's really not an excuse for not reporting codes to the mother ship.
  • FoMoCo can filter out codes or code combinations, interpret them, and send a message that is understandable by non-engineers to the owner through FordPass. If the codes are urgent, of course, send a push notification in FordPass, send an Email, send a text, and throw a light on the dash to the owner.
@Ford Motor Company , are you listening????
 

ripperAZ

Well-Known Member
First Name
Ripper
Joined
Mar 4, 2022
Threads
17
Messages
724
Reaction score
949
Location
AZ DESERT
Vehicles
2022 Ice White Mustang Mach E AWD EX BATT
Country flag
So we're saying we shouldn't expect the dealer to check for codes on new cars before delivery..
Exactly it’s a way to prevent future issues and clog up your repair lanes. The new cars coming out are all attempting to be remotely diagnosed and modularly serviced. It’s ridiculous. They would send a new vehicle out without checking for such.
Jes sayin. FMC dealers running scared from tech it seems in some cases. Most seem to have ample stocks of nitrogen for your tires though.??
 

SignMD

Well-Known Member
First Name
Todd
Joined
Dec 21, 2020
Threads
5
Messages
98
Reaction score
122
Location
Akron, OH
Vehicles
2022 Mach-e GTPE, 2023 BMW iX
Country flag
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.
It's a Ford, set your expectations low.
Sponsored

 
 







Top