What’s this sound? Rubi Diesel doesn’t do it.

[Jcedvm]

I have not tried that. I will check that.

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[Jakeyou]

That is 100% normal. It’s actually the fuel quantity solenoid actuating. On the high lift fuel pump.

 

[Jcedvm]

That is 100% normal. It’s actually the fuel quantity solenoid actuating. On the high lift fuel pump.

Are you able to elaborate on why it doesn’t happen on the other diesel I have? Aside from how loud it is that’s why I became so concerned.

 

[Jteakus]

https://www.jeepgladiatorforum.com/...uzzing-sound-from-engine-after-shutoff.35747/

 

[Jteakus]

My JL and JT both make the noise. It got louder on the JL after a software update. I don’t know for certain what it is but pretty sure it is normal. All I know is what others have said.

 

[GeneralMaximus]

https://www.jeepgladiatorforum.com/...uzzing-sound-from-engine-after-shutoff.35747/

Well, that answers that. Its the FQS buzzing!

 

[Jcedvm]

https://www.jeepgladiatorforum.com/...uzzing-sound-from-engine-after-shutoff.35747/

Thank you so much. I certainly appreciate that! That was a good thread to read. I tried using the search engine and apparently didn’t get the right key words. Thank you, again. I had actually direct messaged the guy so posted the picture of the bulletin. I haven’t heard back from him yet. I sure would like to get his take on why this one does it and the other doesn’t. Doesn’t matter as much now that this is deemed normal but seems as though it should be one way out the other ; either it buzzes or it doesn’t

 

[Koolcarguy]

Evening All
I have a 2023 Sport S EcoDiesel that makes a loud buzzing sound on shutdown. Lasts about 2 to 3 minutes. My 2023 EcoDiesel Rubicon does not make this sound. I’ve attached a couple videos. Truck is brand new. Less than three hundred miles. It started the evening I got home from the dealership and after each shutdown since. I’m assuming this is abnormal and requires attention. That said, it seems as those most dealerships leave something to be desired in regard to maintenance on these engines. I figured going in with some knowledge beforehand may be of some help. Thank you all in advance.

Well I have 4 total 1 sport s and 3 Rubi's all ecodiesels I would say if you have one that doesn't make the noise theres something wrong with that 1 mine have done it since new. Service guy at a Jeep dealership said it was a recirculating pump to cool the turbo not sure thats right but all mine do it

 

[IPRoutes]

Evening All
I have a 2023 Sport S EcoDiesel that makes a loud buzzing sound on shutdown. Lasts about 2 to 3 minutes. My 2023 EcoDiesel Rubicon does not make this sound. I’ve attached a couple videos. Truck is brand new. Less than three hundred miles. It started the evening I got home from the dealership and after each shutdown since. I’m assuming this is abnormal and requires attention. That said, it seems as those most dealerships leave something to be desired in regard to maintenance on these engines. I figured going in with some knowledge beforehand may be of some help. Thank you all in advance.

Normal. When I had my Ecodiesel, I timed it to exact 3 minutes.
Initial hypothesis was that it may be coolant pumped to cool the turbo but later a couple of SAs from different dealerships told me it was fuel return.
So whatever it may be, no worries, it is by design.

 

[Teqsand]

Evening All
I have a 2023 Sport S EcoDiesel that makes a loud buzzing sound on shutdown. Lasts about 2 to 3 minutes. My 2023 EcoDiesel Rubicon does not make this sound. I’ve attached a couple videos. Truck is brand new. Less than three hundred miles. It started the evening I got home from the dealership and after each shutdown since. I’m assuming this is abnormal and requires attention. That said, it seems as those most dealerships leave something to be desired in regard to maintenance on these engines. I figured going in with some knowledge beforehand may be of some help. Thank you all in advance.

Wife and I bith have diesels, her a 21 JLURD and me a 23 JTRD, That noise is the DEF evacuation pump, it clears the lines after shutdown

 

[CreepyJeepy]

Normal sound. Nothing to worry about at all.

 

[RubiNewbCB]

After this morning's commute, 2022 JTRD, started doing this after the HPFP recall was performed. P

 

[Ulauma]

After this morning's commute, 2022 JTRD, started doing this after the HPFP recall was performed. P

This is normal. Mopar came out with a service bulletin to address this as many were complaining, why this isn't in the service manual I do not know... They should of just included it..

Your diesel should be making this noise on shutdown.

 

[Maximus Gladius]

Do you have a mechanic stethoscope to probe around and locate the source?

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