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For my vehicle, the fan will come on like this intermittently throughout the night while the car is charging. It's really loud. Definitely a bug, not a feature.
 

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For my vehicle, the fan will come on like this intermittently throughout the night while the car is charging. It's really loud. Definitely a bug, not a feature.
I have a wireless charger for my phone, does the same thing. Laptop fan, same thing. It's a cooling fan for the battery and electronics. What you consider 'loud' is probably just a slight buzz.. if you are not used to it.

It can't be THAT loud its just a small fan.
 

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I have a wireless charger for my phone, does the same thing. Laptop fan, same thing. It's a cooling fan for the battery and electronics. What you consider 'loud' is probably just a slight buzz.. if you are not used to it.

It can't be THAT loud its just a small fan.
Incorrect. Check the video

To assert that a laptop or phone (phones don't have fans, btw) might be comparable to this is ridiculous. If either product emitted 86 db howl while charging, they wouldn't be viable.

COMPARATIVE EXAMPLES OF NOISE LEVELS

Garbage disposal, dishwasher, average factory, freight train (at 15 meters). Car wash at 20 ft (89 dB); propeller plane flyover at 1000 ft (88 dB); diesel truck 40 mph at 50 ft (84 dB); diesel train at 45 mph at 100 ft (83 dB). Food blender (88 dB); milling machine (85 dB); garbage disposal (80 dB). 2 times as loud as 70 dB. Possible damage in 8 hour exposure.
 

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Mine started doing this since getting the recall software updated a couple weeks ago. It never did it before, at least that I've ever noticed. The first time it happened I thought the car was going to explode so I unplugged the charger then tried to plug it back in. The fan turned off immediately. When I plugged it back in it wouldn't even try and charge for at least 30 minutes. I thought my charger was the problem. But then I tried again and started charging. I think it just needed time to cool down. It's done it a few times since. i just let it run. It does it for about 5 minutes on high then slows down for awhile then maybe another 30 minutes goes again. It seems like a glitch but I dunno.
 

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Mine started doing this since getting the recall software updated a couple weeks ago. It never did it before, at least that I've ever noticed. The first time it happened I thought the car was going to explode so I unplugged the charger then tried to plug it back in. The fan turned off immediately. When I plugged it back in it wouldn't even try and charge for at least 30 minutes. I thought my charger was the problem. But then I tried again and started charging. I think it just needed time to cool down. It's done it a few times since. i just let it run. It does it for about 5 minutes on high then slows down for awhile then maybe another 30 minutes goes again. It seems like a glitch but I dunno.
This behavior has been widely observed by everyone who has had the U73 cruise control recall done. The recall work updated the software of three modules, one of which changed the battery charging protocol. You will see this if you use a level 2 EVSE. I have not heard of anyone seeing it happen with the slower level 1 EVSE that comes with the van. For me, during a full charge I hear it twice during the two hours it takes to charge, each time for two minutes, more if the engine was hot because I was running on gas before I started charging.
 

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Hello pachyderm,
Please know we would be more than happy to offer our support while you are working with your dealer to get this recall completed. If you need any additional assistance after please update us that on well. If this is something that interest you, feel free to send us a private message.
Julie
Chrysler Social Care Specialist
Hi @ChryslerCares,

Thanks for replying. Do you have any information about the issue - the fan comes on when charging at a high speed and volume? Apparently it is something that was updated along with the U73 recall and I've heard a few complaints about here and on other forums. Users describe it as a "jet engine" noise.
 

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Hi @ChryslerCares,

Thanks for replying. Do you have any information about the issue - the fan comes on when charging at a high speed and volume? Apparently it is something that was updated along with the U73 recall and I've heard a few complaints about here and on other forums. Users describe it as a "jet engine" noise.
Unfortunately, as a member of the social media customer care team, I am not mechanically trained. Our teams are working on making sure we have this concern documented. We do encourage our customers to get into the dealer to look into this further. Once you have an appointment set up, we can escalate this on to our specialty teams. If this is something that interests you, please send us a private message with additional details.
Julie
Chrysler Social Care Specialist
 

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Same issue here, 2018 model.

This happened after I had the car in the shop for a collision, but reading this forum I think it's the software update while in the shop that did it.

I always use a L2 charger at home.
This NEVER happened for the first 8 months.
It is now happening systematically while charging, within 15 minutes of plugging in.
I confirm this is very loud, to the point that neighbors have complained about it.

Brought the car to the dealer, $1100 later and some fan part replacement nothing has changed...
 

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Same issue here, 2018 model.

This happened after I had the car in the shop for a collision, but reading this forum I think it's the software update while in the shop that did it.

I always use a L2 charger at home.
This NEVER happened for the first 8 months.
It is now happening systematically while charging, within 15 minutes of plugging in.
I confirm this is very loud, to the point that neighbors have complained about it.

Brought the car to the dealer, $1100 later and some fan part replacement nothing has changed...
Hi marsupilami,
We're sorry about this. Send us a private message so we can have this looked into further for you.
Lydia
Chrysler Social Care Specialist
 

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Same issue here, 2018 model.

This happened after I had the car in the shop for a collision, but reading this forum I think it's the software update while in the shop that did it.

I always use a L2 charger at home.
This NEVER happened for the first 8 months.
It is now happening systematically while charging, within 15 minutes of plugging in.
I confirm this is very loud, to the point that neighbors have complained about it.

Brought the car to the dealer, $1100 later and some fan part replacement nothing has changed...
Please keep us posted if this issue gets resolved (or doesn't). This is an issue for me since I have neighbors I'd rather not annoy 0:) Actually I have one neighbor I'm ok with annoying but they'll probably not let me charge the Pacifica in their driveway...
 

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I have the same issue. I purchased my 2018 Hybrid March of last year and the fan has been howling every night. I have had several noise complaints already. Ir is very loud even from inside the house through bedrooms, hallways, closets, and then bedroom. I have tried to get The manufacturers help but no response. I have brought it to attention with my dealer twice and they said that it is how it is. This is my 4th EV and this is the only one that makes this obnoxious noise. If there is a solution, I would love some insight. We all paid a lot of money for for this car. It is great but the noise is unacceptable.
 

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I wanted to ask everyone here if they have any noises when the car is cold and off. I also had my fan turn on during the hotter months but recently, during colder weather, I have a strange noise and I am wondering if it is related to warming the battery. I posted the question in another thread and thought followers of this thread may have more experience with the strange noise since they already were asking about the fan noise.

https://www.pacificaforums.com/forum/433-2017-chrysler-pacifica-phev-hybrid-general-discussion/41901-pumping-gear-turning-noise-while-parked-plugged.html
 

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I am experiencing the same issue on my 2018 limited ever since manufacturer recalls were applied. I went into the garage and measured the sound level while it was happening and was shocked to find it at a constant 85 db. This is entirely unacceptable - it's like having a shop vac running in my attached garage (kids' room right above) randomly and at all hours of the night.

This is my third electified vehicle and neither of my other two cars ever ran the fan in this manner. I have to assume that there is a major engineering fault here as the recall applied dealt with the runaway cruise control issue recently discovered. Why else would Chrysler secretly adjust fan operation settings to run so aggressively?

I took temperature readings while I was in there: ceiling temp (9') was at 89.8 degrees F, floor temp at 82.9 degrees F, hood temp was at 97.6 degrees F.

Here's a video of the noise while it's happening.

What gives??
Ok, we’ve owned our PacHy since Oct ‘18 and today was the first time ever that I have noticed this loud fan noise. Our garage is attached to the house but is fairly well isolated as far as noise goes. This afternoon we arrived home after exhausting the HV battery (ran a few miles in hybrid mode). It was a pretty warm day with temps around 90 degrees. So when we got home I pulled into the garage and plugged the van in to my Level 2 EVSE. The garage was probably warmer than I’ve noticed it so far this season. We’ve had fairly moderate temperatures up until now. I went inside and we have a mud room/utility room right next to the garage. I was ironing a shirt when I heard this faint whirring noise that sounded like it was coming from the garage. So when I opened the garage door I heard it. Sounded like a pretty high-powered shop vac. I assume it was just trying to cool things down a bit in that warm garage.
 

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Isn't it odd that charging at 6kW is considered to produce excess heat?

The hybrid battery system is capable of well over 100kW in/out and the ICE cooling system has enough thermal reserve to handle operating an Internal Combustion Engine in 50degree heat without overheating. A normal 6cylinder should have 2000cfm electric fan spec’d for it and yet Chrysler has to run the electric fan at 90% to charge at 6kW?

Lets see if we can point out 1 other Level 2 charging EV that runs a fan during charging?

It simply doesn't add up to me. I’d love Chrysler to explain why it has to be this way.

I have my money on mistake. And haven't done the software updates in spite of this. So we'll see. My battery has lasted this long and I get great range. but If I did get a new HV battery before 10years is up its not actually a bad thing either.

I’ll play a control in this experiment. I have the November 2018 powertrain software.
 

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Isn't it odd that charging at 6kW is considered to produce excess heat?

The hybrid battery system is capable of well over 100kW in/out and the ICE cooling system has enough thermal reserve to handle operating an Internal Combustion Engine in 50degree heat without overheating. A normal 6cylinder should have 2000cfm electric fan spec’d for it and yet Chrysler has to run the electric fan at 90% to charge at 6kW?

Lets see if we can point out 1 other Level 2 charging EV that runs a fan during charging?

It simply doesn't add up to me. I’d love Chrysler to explain why it has to be this way.

I have my money on mistake. And haven't done the software updates in spite of this. So we'll see. My battery has lasted this long and I get great range. but If I did get a new HV battery before 10years is up its not actually a bad thing either.

I’ll play a control in this experiment. I have the November 2018 powertrain software.
You know, now that I think of it, I don't know for sure that the 2019s also run the fan while charging. I wonder if perhaps there is some flaw in the 2018 battery packs that they are trying to compensate for. Rather than replace the batteries they made a software change. I do know that they snuck the change in as part of the U73 recall that was supposed to fix a cruise control bug but in fact made other changes too. They knew something was wrong and used the recall as a handy way to get everyone to bring their car in and get the update. Perhaps somebody with a 2019 could speak up. It would only take one to prove me wrong.
 

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You know, now that I think of it, I don't know for sure that the 2019s also run the fan while charging. I wonder if perhaps there is some flaw in the 2018 battery packs that they are trying to compensate for. Rather than replace the batteries they made a software change. I do know that they snuck the change in as part of the U73 recall that was supposed to fix a cruise control bug but in fact made other changes too. They knew something was wrong and used the recall as a handy way to get everyone to bring their car in and get the update. Perhaps somebody with a 2019 could speak up. It would only take one to prove me wrong.
I dont think theres a flaw they’re trying to hide so much as a mistake like they tend to make - and not correct for a long time.

If there was a flaw in the battery it would show up - EV Lithium batteries are comprised of smaller batteries that are required to work as one unit. If a cell or part were to have a flaw it would under perform and throw the entire pack out of balance and force a MIL.

The problem would eventually effect the range and be noticeable..

It feels like the design team passed the project over to another department and moved on. If this is the case, This other department doesnt know much about the hybrid powertrain..

Heres what happens when a cell module has a bad cell. This is from a 330e which has 5 cell modules that each have 16 cells of their own. Cell module 3 has C05 at 0.1v lower then the rest at 58.43v module voltage. Drop the module by only 2v to 56.43v and C05 drops by 0.575v from the rest. This puts a lot of stress on C05 but it also faults the HV Supply.
 

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My Nissan Leaf and Toyota RAV4 EV both charged with no fan. The Leaf had a DC Fast Charger in addition to the Level 2, as well.

The Ford Fusion, Tesla Model 3 and BMW 530e that charge alongside me at work each day also happen to charge with no fan running, and outside temps have topped 100 degrees several times already this year.

My 2018 Pacifica charged fine with no fan noise for the first year I owned it until the recall/update occurred. No decrease in range or charge amount. The recall was for the cruise control runaway issue - entirely unrelated to charging or battery management.

Either it's a mistake or Chrysler isn't sharing information about an issue with the battery system.

Sent from my Pixel XL using Tapatalk
 

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Lets see if we can point out 1 other Level 2 charging EV that runs a fan during charging?
My 15 Ford Focus Electric did make the loud noise too. I didn't really notice it though until right before I sold it. My wife was the primary driver so I asked her and she didn't really noticed it either.
 
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