Exhaust Drone

[Brutus 392]

I'd rather Jeep left that mode out on the 392 , who buys one of these for fuel mileage ?

 

[Ced392]

I think I rather MDS than start stop. Love the fact that there is no start stop...

 

[Brutus 392]

I think I rather MDS than start stop. Love the fact that there is no start stop...

Hate both . I'm getting an exhaust droning sound , think it could be from 4cyl mode ?

 

[Ced392]

MDS kicks in and out, so it would not be a constant droning. Its more obvious with the performance exhaust on, much more actually. I get droning with the performance exhaust on no matter if MDS is on or not but its still obvious when MDS kicks in.

 

[Brutus 392]

MDS kicks in and out, so it would not be a constant droning. Its more obvious with the performance exhaust on, much more actually. I get droning with the performance exhaust on no matter if MDS is on or not but its still obvious when MDS kicks in.

Definitely hear it when in cruise , and with performance exhaust on.

 

[Canadian 392]

DRONE UPDATE - NOT GOOD NEWS

Hi,
I have that terrible drone that many 2024 owners are complaining about.

I have tried both the Borla and AWE systems. Although both are excellent products, if your 392 exhibits this very loud drone, neither the Borla or AWE systems will make it any better.

I have complained to Jeep about this. My dealer assessed the drone (very loud and deep bass drone - 83 decibels at 45 Hz - which is blistering anyone's eardrums). The dealer also agreed there is something definitely wrong and this drone should Not be present. The dealer documented in my work order that the drone is "loud and intolerable" after only a 5 min test drive with me in the vehicle. The shop foreman even reported that the drone gave him a headache after 5 min in the vehicle and this is definitely a problem.

I have spend a lot of time communicating with customer service at Jeep Cares. They tell me that they have explained the problem to the engineers at Jeep. They claim the engineers at Jeep have "engineered" that specific drone to be there, and there is no fault with the vehicle.

If you can believe it, I am being told by Jeep that our 392s have been specifically engineered to exhibit that same horrible drone that the dealer has officially documented as "loud and intolerable". The same drone that 100% of people who ride in my Jeep also cannot tolerate.

Jeep/FCA needs to do something about this problem for the affected vehicle, instead of ignoring it.

The drone alone ruins the Jeep experience, it's that bad.

 

[Brutus 392]

DRONE UPDATE - NOT GOOD NEWS

Hi,
I have that terrible drone that many 2024 owners are complaining about.

I have tried both the Borla and AWE systems. Although both are excellent products, if your 392 exhibits this very loud drone, neither the Borla or AWE systems will make it any better.

I have complained to Jeep about this. My dealer assessed the drone (very loud and deep bass drone - 83 decibels at 45 Hz - which is blistering anyone's eardrums). The dealer also agreed there is something definitely wrong and this drone should Not be present. The dealer documented in my work order that the drone is "loud and intolerable" after only a 5 min test drive with me in the vehicle. The shop foreman even reported that the drone gave him a headache after 5 min in the vehicle and this is definitely a problem.

I have spend a lot of time communicating with customer service at Jeep Cares. They tell me that they have explained the problem to the engineers at Jeep. They claim the engineers at Jeep have "engineered" that specific drone to be there, and there is no fault with the vehicle.

If you can believe it, I am being told by Jeep that our 392s have been specifically engineered to exhibit that same horrible drone that the dealer has officially documented as "loud and intolerable". The same drone that 100% of people who ride in my Jeep also cannot tolerate.

Jeep/FCA needs to do something about this problem for the affected vehicle, instead of ignoring it.

The drone alone ruins the Jeep experience, it's that bad.

I have a 24 , the drone I get is a little annoying but not terrible. Do you have a video to share of the drone sound you're getting ?

 

[Canadian 392]

I have a 24 , the drone I get is a little annoying but not terrible. Do you have a video to share of the drone sound you're getting ?

I'll PM you a video....

 

[TEAMSLO]

23 with SOT here and yeah the drone is really bad. Have had drone in the past on other cars with modified exhausts and such but the 392 is on another level.

 

[Canadian 392]

23 with SOT here and yeah the drone is really bad. Have had drone in the past on other cars with modified exhausts and such but the 392 is on another level.

Hi,
Thanks for responding. I agree. The drone is extreme.
Jeep/FCA needs to do something about this problem for the affected vehicle, instead of ignoring it.

Also, I'm not a stranger to loud V8's. My Shelby GT350R which has no resonators, and my AMG C63 (the proper 6.2L NA motor) which has an Eisenmann Race Exhaust and secondary cats removed are both much louder than our 392 in stock format, and neither have problems with drone, at all.

Have you communicated with Jeep about this problem?

 

[TEAMSLO]

I've given up on Jeep for assistance on anything after my tcase fiasco at the dealership. I'm looking into the magnaflow rock crawler exhaust as it's something I need for clearance, but hoping it takes care of the drone issue.

On another thread, did get confirmation from another member that mentioned he does not get drone with the MF rock crawler exhaust.

 

[Deckard]

Yeah , funny when you start it up in a crowded parking lot every head turns. I'm sure you've had people in your condo building running for the doorway thinking it's a earthquake

I've set off car alarms in parking lots with the startup. Love it.

 

[MaLuco]

hi there, thought I'd chip in.

Try ZAutomotive's NoLimitz JL device. It was a 60-70% drone reduction in my case but it came at a price.

I mean you can't pick and choose which functions to switch on and off as you do with the Tazer. So you get forced RWD and no traction control. Bummer.. (full throttle at 15/20mph to play around and you're on your way to evergreen pastures - ask me how I know)

Besides that, the 4cyl mode being gone is so worth it just for its own sake. And the drone reduction is due to another trick the device pulls off: it alters the off-throttle RMP (drops almost instantly to a non-drone 1.3-4 k range or keeps it above 2.2k in most cases - clever!).

All in all, a compromise. I do find myself drive with the device on most of the time now. To play around with acceleration at speed or to launch - I switch it off (easy to do but does require you to turn the engine off to do so).

Hope it helps. And maybe someone has found a walkaround to have it all?

 

[Winston]

hi there, thought I'd chip in.

Try ZAutomotive's NoLimitz JL device. It was a 60-70% drone reduction in my case but it came at a price.

I mean you can't pick and choose which functions to switch on and off as you do with the Tazer. So you get forced RWD and no traction control. Bummer.. (full throttle at 15/20mph to play around and you're on your way to evergreen pastures - ask me how I know)

Besides that, the 4cyl mode being gone is so worth it just for its own sake. And the drone reduction is due to another trick the device pulls off: it alters the off-throttle RMP (drops almost instantly to a non-drone 1.3-4 k range or keeps it above 2.2k in most cases - clever!).

All in all, a compromise. I do find myself drive with the device on most of the time now. To play around with acceleration at speed or to launch - I switch it off (easy to do but does require you to turn the engine off to do so).

Hope it helps. And maybe someone has found a walkaround to have it all?

Not sure you meant this, but to clarify, NoLimitz does not force RWD.

 

[MaLuco]

Not sure you meant this, but to clarify, NoLimitz does not force RWD.

Thanks a lot for clarifying that Winston. I did not realize that and judged purely by my impression when accelerating (rear wheel spin on a paved road 0kmh+). The official specs indeed confirm no forced RWD. I feel better now

In any case, I hope Jeep will react and fix the root cause for us. It feels weird to be forced to hack your way through an obvious engineering issue on such a vehicle.

 

[Canadian 392]

Thanks a lot for clarifying that Winston. I did not realize that and judged purely by my impression when accelerating (rear wheel spin on a paved road 0kmh+). The official specs indeed confirm no forced RWD. I feel better now

In any case, I hope Jeep will react and fix the root cause for us. It feels weird to be forced to hack your way through an obvious engineering issue on such a vehicle.

“In any case, I hope Jeep will react and fix the root cause for us. It feels weird to be forced to hack your way through an obvious engineering issue on such a vehicle.”

I have dealt with Jeep on this through Jeep Cares. They claim the engineers designed the exhaust to drone (just the way we hate it), if you can believe that. I don’t believe that and all I asked was for an engineer to visit the dealer and drive my Jeep for 2 minutes, and then tell me it was really designed to have that brutal drone. Jeep flat out refused to examine my vehicle, and this is with the Shop Foreman documenting “intolerable drone” in the warranty work order. I am no stranger to large displacement V8s and very loud exhausts, but DRONE is not part of any decent exhaust system.

@ Jeep Cares: Why don’t you provide a Solution for the customers with affected vehicles?

 

[BarneyM]

hi there, thought I'd chip in.

Try ZAutomotive's NoLimitz JL device. It was a 60-70% drone reduction in my case but it came at a price.

I mean you can't pick and choose which functions to switch on and off as you do with the Tazer. So you get forced RWD and no traction control. Bummer.. (full throttle at 15/20mph to play around and you're on your way to evergreen pastures - ask me how I know)

Besides that, the 4cyl mode being gone is so worth it just for its own sake. And the drone reduction is due to another trick the device pulls off: it alters the off-throttle RMP (drops almost instantly to a non-drone 1.3-4 k range or keeps it above 2.2k in most cases - clever!).

All in all, a compromise. I do find myself drive with the device on most of the time now. To play around with acceleration at speed or to launch - I switch it off (easy to do but does require you to turn the engine off to do so).

Hope it helps. And maybe someone has found a walkaround to have it all?

New firmware update for the NoLimitZ. Does MUCH more now.

 

[MaLuco]

New firmware update for the NoLimitZ. Does MUCH more now.

Is this Beta 24.0.6? Firmware updated before with no effect - now I know why. Menu controls FTW! (BTW it's crazy how much opportunity ZAutomotive have when it comes to their product communication; another example: did you see anywhere on their official website that you can actually have both Tazer and NoLimitz installed both, at the same time on the same vehicle?)

 

[MaLuco]

“In any case, I hope Jeep will react and fix the root cause for us. It feels weird to be forced to hack your way through an obvious engineering issue on such a vehicle.”

I have dealt with Jeep on this through Jeep Cares. They claim the engineers designed the exhaust to drone (just the way we hate it), if you can believe that. I don’t believe that and all I asked was for an engineer to visit the dealer and drive my Jeep for 2 minutes, and then tell me it was really designed to have that brutal drone. Jeep flat out refused to examine my vehicle, and this is with the Shop Foreman documenting “intolerable drone” in the warranty work order. I am no stranger to large displacement V8s and very loud exhausts, but DRONE is not part of any decent exhaust system.

@ Jeep Cares: Why don’t you provide a Solution for the customers with affected vehicles?

Yeah, Canadian 392 I personally think you have a point. How else can it be explained that some 392 models have the drone and some do not? There are many testimonials to be found similar to these: https://share.cleanshot.com/Gd2S4P3p, https://share.cleanshot.com/nf4mj0BZ.

For some, the solution has been to properly "feed" the ANC (by connecting the hardtop wiring): https://www.jlwranglerforums.com/forum/threads/reverb-from-sub-resolved.93193/

Some others go at great lengths to disconnect the audio or change the exhaust (which apparently improves the situation but is still a lottery and quite subjective it seems). It's quite interesting and entertaining (laughing through tears) to read what others have been trying out to remove the drone: https://www.jlwranglerforums.com/forum/threads/droning-is-actually-the-sub-reverbing-update.103794/

There are some that suggest a particular engineering issue (lack of grounding somewhere on the electric installation which confuses the ANC). Some were suggesting that the exhaust pipes touch other elements of the undercarriage.

The weird thing is that none of YT vids (posted by amateur car reviewers and car journalists alike) never mention the drone. Is it just that there is a bunch of us 392 owners that are extremely unlucky?

If the issue is so infrequent, it's less surprising that local dealerships have no idea how to deal with it or that they simply deny it even exists. I would count on Jeep Corporate who hopefully are as amazing at customer support/engineering as they are at marketing (the H.Ford commercial is on another level). Brands must do recalls on safety issues of their vehicles. Some (top) brands, address issues because they want to. Which is it for Jeep?

 

[Canadian 392]

Yeah, Canadian 392 I personally think you have a point. How else can it be explained that some 392 models have the drone and some do not? There are many testimonials to be found similar to these: https://share.cleanshot.com/Gd2S4P3p, https://share.cleanshot.com/nf4mj0BZ.

For some, the solution has been to properly "feed" the ANC (by connecting the hardtop wiring): https://www.jlwranglerforums.com/forum/threads/reverb-from-sub-resolved.93193/

Some others go at great lengths to disconnect the audio or change the exhaust (which apparently improves the situation but is still a lottery and quite subjective it seems). It's quite interesting and entertaining (laughing through tears) to read what others have been trying out to remove the drone: https://www.jlwranglerforums.com/forum/threads/droning-is-actually-the-sub-reverbing-update.103794/

There are some that suggest a particular engineering issue (lack of grounding somewhere on the electric installation which confuses the ANC). Some were suggesting that the exhaust pipes touch other elements of the undercarriage.

The weird thing is that none of YT vids (posted by amateur car reviewers and car journalists alike) never mention the drone. Is it just that there is a bunch of us 392 owners that are extremely unlucky?

If the issue is so infrequent, it's less surprising that local dealerships have no idea how to deal with it or that they simply deny it even exists. I would count on Jeep Corporate who hopefully are as amazing at customer support/engineering as they are at marketing (the H.Ford commercial is on another level). Brands must do recalls on safety issues of their vehicles. Some (top) brands, address issues because they want to. Which is it for Jeep?

Excellent summary. And, I have tried each option, with no success.

To reiterate: @ Jeep Cares: Why don’t you provide a Solution for the customers with affected vehicles?