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01-08-2016, 07:20 AM
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#1
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Senior Member
Join Date: Jan 2013
Location: Winterset, Ia
Posts: 280
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Noise?
I have a new to me 2013 duramax with 53,000 mi. Sometimes when I shut the engine off it sounds like a rumbling noise that slows to a stop. This my 1st diesel so not sure if this is normal. Thanks
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01-08-2016, 08:46 AM
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#2
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Senior Member
Join Date: Feb 2015
Location: Texas
Posts: 1,085
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Howdy tdawg,
The truck is a turbo diesel I presume?
If so the noise is probably the turbo spinning down.
If the noise is loud enough that could indicate bearing issues.
-Brian
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2014 Bullet Premier 22RBPR - let the camping commence!
2013 F150 Platinum - 5.0 - 3.55 ELD + towing package
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01-08-2016, 08:51 AM
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#3
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Senior Member
Join Date: May 2015
Location: ma
Posts: 147
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If my ford is in a regen when I shut it down I can hear some odd noises coming from underneath near the DPF.
Aside form that the only other noise I have heard was the turbo, but that doesn't happen often either as it is very faint and you need to be outside the truck when you shut down.
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2016 F350 Dually Crew diesel
2015 carbon 327
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01-08-2016, 09:00 AM
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#4
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Senior Member
Join Date: Jan 2013
Location: Winterset, Ia
Posts: 280
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I am still under warranty as it was a certified truck when purchased this summer. I just don't want the dealership to tell me its normal. If another 2013 duramax owner here has heard the same at least I have some background on what's normal. Truck runs great.
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01-08-2016, 10:31 AM
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#5
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Senior Member
Join Date: Jul 2013
Location: Box Elder
Posts: 2,897
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On ours, it sounds like a pump running for several seconds when we shut it down. Has done this from new, and have never had any problems with it. 2012 Dmax
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Bob & Becky
2012 3402 Montana
2012 Chevy 2500HD D/A CC
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01-08-2016, 05:34 PM
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#6
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Senior Member
Join Date: Mar 2014
Location: Las Cruces
Posts: 4,665
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I can't say that I've ever heard anything on mine other than some DPF noise from time to time.
As for your warranty, your duramax is covered for 100k miles, certified or not. That's anything in the duramax system including NoX sensors in the exhaust for the DPF.
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Brent
2013 Alpine 3500RE
2019 Silverado 2500HD Duramax
U.S. Air Force Retired (25 yrs)
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01-08-2016, 05:58 PM
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#7
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,841
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On the Ford SuperDuty diesels, at ignition "shutoff" the DEF pump pulls all DEF out of the lines (to prevent freezing damage). It sounds like a "fuel pump Brrrrrrrrrr" and is located near the forward driver's side of the bed. The pump runs for about 10 seconds then shuts off.
There are other "normal diesel noises" (per explanation of the diesel tech at Ford) but most of them are under the hood and usually are "long gone" by the time I get my seat belt unbuckled and the door open. But, that DEF pump keeps running, usually until I'm walking away from the truck. It was "unsettling" until I figured out what it was....
Maybe your noise is similar?
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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01-09-2016, 07:06 AM
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#8
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Senior Member
Join Date: Jan 2013
Location: Winterset, Ia
Posts: 280
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Thanks for the info. I may run it by the dealership just to satisfy my curiosity.
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01-09-2016, 06:33 PM
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#9
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Senior Member
Join Date: May 2010
Location: Rochester, NY
Posts: 1,605
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Mine does same thing. It is a pump that drains the Def line so it doesn't freeze. Mine runs sometimes for a minute or so.
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01-09-2016, 07:04 PM
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#10
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Senior Member
Join Date: Jan 2013
Location: Winterset, Ia
Posts: 280
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Good to know steve
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01-10-2016, 04:30 AM
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#11
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Senior Member
Join Date: Mar 2014
Location: Las Cruces
Posts: 4,665
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All of the things I can't hear due to my hearing loss make life so much simpler, and my wife wonders why I don't wear my hearing aids.....
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Brent
2013 Alpine 3500RE
2019 Silverado 2500HD Duramax
U.S. Air Force Retired (25 yrs)
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01-10-2016, 11:53 AM
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#12
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Senior Member
Join Date: Aug 2014
Location: Lincoln, NE
Posts: 422
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I have never heard such a noise with my 2013 Duramax, but I also have a hearing problem. Having had turbo bearing problems on a previous truck though would make me thoroughly check out the turbo. Good luck.
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01-11-2016, 08:59 AM
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#13
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Senior Member
Join Date: Jul 2014
Location: Nevada
Posts: 2,695
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Quote:
Originally Posted by bsmith0404
All of the things I can't hear due to my hearing loss make life so much simpler, and my wife wonders why I don't wear my hearing aids.....
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"Nothing wrong with my hearing that you talking louder won't cure." The FAA doc says my hearing is fine, BTW. Good enough for me.
My Cummins just gives an occasional serpentine belt chirp at shutdown. A compression vs inertia thing, I suppose. No DEF, pumps, moaning or thingies.
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Desert185 🇺🇸 (Retired Chemtrail vendor)
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-Four Wheel 8' Popup Camper.
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01-12-2016, 01:16 PM
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#14
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Senior Member
Join Date: Jan 2013
Location: Winterset, Ia
Posts: 280
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I have narrowed down noise as it sounds like air coming back up through the air cleaner box you can also hear when you let off accelerator to return to idle. Taking into dealer to have them look at maybe its normal but just want to be sure.
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01-12-2016, 05:53 PM
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#15
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Senior Member
Join Date: Jul 2015
Location: Texarkana, TX
Posts: 1,052
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Quote:
Originally Posted by B-O-B'03
The truck is a turbo diesel I presume?
If so the noise is probably the turbo spinning down.
If the noise is loud enough that could indicate bearing issues.
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A rumbling turbo would be bad.. very bad...
Quote:
I have narrowed down noise as it sounds like air coming back up through the air cleaner box you can also hear when you let off accelerator to return to idle
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That is described like re-circulation from a turbo blow-off type contraption, but I don't actually know if such a thing is on a turbo diesel ford.
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01-13-2016, 06:22 AM
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#16
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Senior Member
Join Date: Jan 2012
Location: Central San Joaguin Valley, CA
Posts: 2,117
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To the OP - Does the Duramax have a waste gate? I ask because, on the earlier Ford 6.7 engines, the vacuum solenoid on the waste gate would, for lack of a better term, make a 'farting' sound bout 15 - 20 seconds after shut down. The fix is to have the vacuum harness replaced. Don't know if Isuzu uses a waste gate.
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Jack & Marty
2018 Laredo 298 SRL
2011 F-250 SB Crew Cab 4x4 6.7L
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01-13-2016, 06:31 PM
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#17
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Senior Member
Join Date: Jan 2013
Location: Winterset, Ia
Posts: 280
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truck is back to dealer. the shop manager came out and listened to the noise. He said he has not heard that before but thought it was coming from exhaust on right side down low. Will see what they say when they call back after checking out.
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01-14-2016, 05:09 AM
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#18
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Member
Join Date: Jun 2012
Location: Top of Virginia
Posts: 60
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You have received some great answers here. I to an a "new to me" Duramax owner. Purchased a 2013 Silverado in May 2015, 27,000 miles (32,000 now). It has been a trouble free truck. I have found a lot of help on a duramax forum (don't know if I can give an exact name here but if you google you can find it).
Allan
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Allan & Sadie
Bluemont, VA
2013 Cougar XLite 28SGS 5th Wheel
2013 Chevrolet 2500HD EC DMax/Ally, 3.73 gear 4x4
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01-14-2016, 09:23 AM
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#19
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Senior Member
Join Date: Jan 2013
Location: Winterset, Ia
Posts: 280
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Got a call back from dealership they said it's normal. They listened to 3 others all did the same. Said it's air coming back from turbo. Yes I also asked on the duramax forum good people there.I guess all is good.
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01-16-2016, 05:25 PM
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#20
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Senior Member
Join Date: Jul 2011
Location: Ottawa Valley
Posts: 329
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[QUOTE=1jeep;191526]If my ford is in a regen when I shut it down I can hear some odd noises coming from underneath near the DPF.
This should be monitored and avoided if at all possible. Turbo temps are very high when in regen. It is not if but when you will have turbo failure after enough high temp shutdowns.
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2011 325SRX , Mor-Ryde Pinbox
2004 Ram 3500DRW 6spd,4x4,QC.LB ,340L aux tank
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2014 FJR
2014 Jetta TDI
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