Excessively Loud Popping Noise B&O Unleashed.

[pjstud1v]

Mine went in to the dealer today. I’ll update the thread when I have an update from them. They wanted my video from the last time it happened, so at least they know I’m not making this up. I wonder how many weeks this will take.

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[pjstud1v]

Once they actually replaced the Apim and reloaded the software, it was only a couple days... the problem was the delay while they tried to duplicate the problem.... that was over a month.....

If they find the "tech line" document that tells them what to do, maybe you can avoid that...

I specifically mentioned the tech line to him and he said the guy doing the work is really good and knows how to use the tech line. I’m cautiously optimistic at this point…

 

[pjstud1v]

Got a voicemail from my service tech last night as dealer was closing. He said it’s the “auxiliary battery” failing and the truck will be ready on Tuesday morning.

I’m not sure how the battery failing would make this happen, but we’ll see what happens after I get it back.

 

[pjstud1v]

Truck came back today. New auxiliary battery installed and they reprogrammed my APIM. The APIM reprogramming also got me full screen CarPlay. Hopefully this does the trick.

 

[DanielBoca]

Truck came back today. New auxiliary battery installed and they reprogrammed my APIM. The APIM reprogramming also got me full screen CarPlay. Hopefully this does the trick.

I think in my case they said that the auxiliary battery wasn't properly charged and they did some 'reformatting', slow charging for 8-12 hours or so (can't remember) plus reprogramming the APIM.

At least the solutions seem to be consistent, never happened to me since then, about two months now.

 

[pjstud1v]

That’s great news. I hope mine is really fixed.

 

[Jombi]

Any chance you can get the TSB number that the tech was able to find? Would be incredibly helpful in troubleshooting this issue.

+1 this. There's other threads with the same issue on this site. The dealerships look at me funny when I try to explain the problem and get annoyed when they say there's nothing they can do because their tech couldn't reproduce it on a single test drive.

Any internal TSB docs would help greatly to get the dealership to finally fix this crap.

 

[Silvah]

I had my truck in today for this problem and specifically mentioned searching the tech line. The other advisor in the office immediately poopoo'd "the forums". I had video of the occurrence that I showed the service advisor. Of course they found nothing wrong.

The ticket indicates the tech spent 20 minutes listening to music of various types and volumes and could not replicate the issue (never mind that I told them I'd driven 20 hours since the event with no issue). It notes "checked for tsb/gsb/ssm none found through Ford on this issue for this vehicle", and I was advised to bring it back when the issue was occurring.

I'll be looking for another dealer when it happens again.

 

[KapitanTurtle]

I had my truck in today for this problem and specifically mentioned searching the tech line. The other advisor in the office immediately poopoo'd "the forums". I had video of the occurrence that I showed the service advisor. Of course they found nothing wrong.

The ticket indicates the tech spent 20 minutes listening to music of various types and volumes and could not replicate the issue (never mind that I told them I'd driven 20 hours since the event with no issue). It notes "checked for tsb/gsb/ssm none found through Ford on this issue for this vehicle", and I was advised to bring it back when the issue was occurring.

I'll be looking for another dealer when it happens again.

This was generally the response I got when I brought it in. They did, however, replace the USB hub saying that "the tech didn't like how it looked," for whatever that means.

Personally, I have a sneaking suspicion that it has something to do with wireless CarPlay. I've put 2000 miles on the truck since the last occurrence and have not really had any issues after swapping over to the hardwire CarPlay.

I saw that Ford is sending down updates that are setting up a full screen CarPlay so maybe something in there fixes the wireless. I'm generally ok using the wired, though, and would prefer to not have my hears blown out again.

 

[pjstud1v]

This was generally the response I got when I brought it in. They did, however, replace the USB hub saying that "the tech didn't like how it looked," for whatever that means.

Personally, I have a sneaking suspicion that it has something to do with wireless CarPlay. I've put 2000 miles on the truck since the last occurrence and have not really had any issues after swapping over to the hardwire CarPlay.

I saw that Ford is sending down updates that are setting up a full screen CarPlay so maybe something in there fixes the wireless. I'm generally ok using the wired, though, and would prefer to not have my hears blown out again.

I had issues with wired or wireless CarPlay. Hasn’t happened since my auxiliary battery got replaced and apim reprogrammed.

 

[KapitanTurtle]

I had issues with wired or wireless CarPlay. Hasn’t happened since my auxiliary battery got replaced and apim reprogrammed.

Concern increases....

How often were you getting it and were you able to reproduce?

 

[pjstud1v]

Concern increases....

How often were you getting it and were you able to reproduce?

Four issues in 7k miles. I was never able to figure out exactly what triggered it. I had other weird stuff going on like the my view screen losing my customization, gauges losing my preferences, the right side of the 12” display randomly showing a card that I never use when I would start the truck, and that’s what got the tech interested in the aux battery.

I caught the worst/longest lasting static sound on video. I think that made a huge difference because the noise was happening with the ignition off and the driver door open. Tech couldn’t reproduce my issues but he had proof it was real.

I have been using wireless CarPlay exclusively since it was “fixed” and haven’t had an issue in about 1200 miles. I’m not positive it’s resolved since it happened so sporadically before. I’ll probably trust it if I can get six full months of no issues.

 

[Flash69]

So I had something like this happen this past weekend. I'm in the process of designing my new behind the rear seat amp rack. I am making a cardboard template and was behind the rear seat measuring and moving the template around. I must have done something to the factory harnesses going into the amp. When I started my truck I heard a loud pop from the speakers and then had no audio. I turned the truck off, went behind the driver side rear seat, unplugged the three harnesses going to the factory amp and then plugged them back in. Audio was working again with no pop.

There have been reports of fuses not being fully seated since 2021s rolled off the line. I know for a fact my truck was on chip hold waiting on the Harmon Kardon factory amp. It could be possible the harness clips are not fully seated. I would double check that the factory harnesses to the amp are fully locked in place.

(sorry if this has already been discussed, I didn't read this entire thread)

 

[Controlrick]

This was generally the response I got when I brought it in. They did, however, replace the USB hub saying that "the tech didn't like how it looked," for whatever that means.

Personally, I have a sneaking suspicion that it has something to do with wireless CarPlay. I've put 2000 miles on the truck since the last occurrence and have not really had any issues after swapping over to the hardwire CarPlay.

I saw that Ford is sending down updates that are setting up a full screen CarPlay so maybe something in there fixes the wireless. I'm generally ok using the wired, though, and would prefer to not have my hears blown out again.

Not sure why, but mine hasn't blown up for a few months now. Possibly due to an update. 6,000 miles. It has done it 4 times.

 

[KapitanTurtle]

Not sure why, but mine hasn't blown up for a few months now. Possibly due to an update. 6,000 miles. It has done it 4 times.

Do you happen to use CarPlay or Android Auto?

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