Whining Noise????????????????? - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
Home Forum Market Place Garage Lounge (1) Tuning Library DTC Tool Register Vendors
Go Back   Diesel Place : Chevrolet and GMC Diesel Truck Forums > GM Diesel Engines > Duramax Fourth Generation: 2007.5-2010 (LMM)
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Auto EscrowAuto LoansInsurance

DieselPlace.com is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 05-12-2008, 12:31 AM   #1 (permalink)
utahman
Diesel Enthusiast
 
Join Date: May 2008
Posts: 3
iTrader Score: 0 reviews

Whining Noise?????????????????

I have a 2008 Duramax and I just got a new 5th Wheel trailer. Trailer weighs about 12,000 loaded and it is within my towing specs. The last couple of times I have pulled it over a mountain near my house, my engine or turbo makes a high pitched whining noise. It sounds to be directly associated with RPM's. When I let off the pedal the noise goes down and visa versa.

It happens when I've been pulling for awhile or just starting the trip, but only when pulling up a hill. Once I let up on the pedal and tried to slow down and the noise went away eventually.

I'm thinking it has something to do with the turbo or exhaust gas temp? Any ideas?

Thanks
Offline  
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 05-12-2008, 03:36 AM   #2 (permalink)
Prairie Ville
Diesel Fanatic
 
Join Date: Mar 2008
Posts: 70
iTrader Score: 0 reviews

Sounds like its the fan when the clutch kicking in that your`e hearing.
__________________
2008 LMM, 35000 CC SRW, A.R.E. TOPPER, SS NURF BARS, EDGE INSIGHT W/ EGT PROBE.
Diamond Eye Exhaust DP back, EFIlive Autocal DSP-5(Idaho Rob), Airdog lift pump, EGR blocker plate yet to be installed......
Offline   Reply With Quote Quick reply to this message
Old 05-12-2008, 01:03 PM   #3 (permalink)
Ultramafic
Diesel Technician
 
Join Date: Mar 2008
Location: Maple Ridge B.C.
Posts: 114
iTrader Score: 0 reviews

I know that when I am towing up a mountain my turbo noise is much more pronounced and can easily be heard inside the cab.

This was the same for both my current and previous 6.5TD truck.

In fact while towing was the only time I could hear the Turbo inside the cab of my 6.5, it was quite a noisy engine in comparison.

What I can hear with my LMM sounds like a mix of a high pitched whistle and high pressure air just as you describe related to RPMs.

The noise on mine is not deafening or loud by any stretch but can definitely be heard inside.

Unless it is an excessive noise on your truck it sounds like it might be normal.

mike
__________________
2007.5 Chev 3500 SRW CC LMM
Offline   Reply With Quote Quick reply to this message
Old 05-12-2008, 01:16 PM   #4 (permalink)
blamkin86
Diesel Technician
 
Join Date: Jan 2008
Posts: 280
iTrader Score: 0 reviews

RPM in any gear or one gear?

Some people early on reported very low fluid levels in rear ends, transfer cases, etc... I'd take a look there.

Mine doesn't do that and I tow about the same load toyhauler.
Offline   Reply With Quote Quick reply to this message
Old 05-12-2008, 01:29 PM   #5 (permalink)
Six Dollars
Diesel Enthusiast
 
Join Date: May 2007
Location: Corona, CA
Posts: 22
iTrader Score: 0 reviews

Check to see it you have loose hoses on the turbo. I've seen several instances where a leak on the pressure side of the turbo presented as a whine.
Offline   Reply With Quote Quick reply to this message
Old 05-12-2008, 01:57 PM   #6 (permalink)
tommystunes
Diesel Technician
 
tommystunes's Avatar
 
Join Date: Aug 2007
Location: mcalester.ok
Posts: 302
iTrader Score: 0 reviews

It is your wallet
__________________
07.5 silverado 2500HD D/A crew 4wd no mods.

94 2500 6.5td std cab 4wd farm/feed truck.

03 jetta tdi wife's
Offline   Reply With Quote Quick reply to this message
Old 05-14-2008, 01:51 AM   #7 (permalink)
Peioa
Diesel Technician
 
Peioa's Avatar
 
Join Date: Dec 2007
Location: Granada Hills, CA
Posts: 115
iTrader Score: 1 reviews

sorry

__________________
2007.5 Chevrolet Silverado 2500HD
Crew cab
S&B Air Intake
MBRP 4'' DPF-Back
Quadzilla Stealth 2 at 70hp
265-70-R17
Bilstein Shocks

IBEW Local 11
Offline   Reply With Quote Quick reply to this message
Old 05-14-2008, 09:31 PM   #8 (permalink)
RI Chevy Silveradoman
Diesel Master
 
RI Chevy Silveradoman's Avatar
 
Join Date: Apr 2006
Location: Rhode Island
Posts: 3,835
iTrader Score: 0 reviews

Ocean State Diesel Club Member

If you have the Allison in tow haul mode, that might be doing it also! That Allison whines when your pushing it due to the higher RPM's! Gears. That's my guess.
__________________
RI Chevy Silveradoman

2006 Chevrolet 2500 HD 4WD CC LT3
LLY Duramax Diesel Allison 6 Spd

Member #1 Ocean State Diesel Club!

Offline   Reply With Quote Quick reply to this message
Old 05-14-2008, 09:39 PM   #9 (permalink)
Dakster
Diesel Technician
 
Join Date: May 2007
Posts: 103
iTrader Score: 0 reviews

In mine its my wife...
Offline   Reply With Quote Quick reply to this message
Old 05-14-2008, 11:09 PM   #10 (permalink)
WVSilverado
Diesel Fanatic
 
WVSilverado's Avatar
 
Join Date: Feb 2008
Location: West Virginia
Posts: 72
iTrader Score: 0 reviews

Mine had a whine in it and like mentioned above it was a turbo hose clamp loose
__________________
2007.5 2500 HD Silverado
Sport Red
DIC Upgrade
Bedliner
GM Hitch
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Diesel Place : Chevrolet and GMC Diesel Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

PLEASE READ! You must check your email inbox for the confirmation link to complete registration. Please check your spam box if you do not see the email in your inbox.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Whining noise kdkrause GM Gassers 2 04-27-2010 04:56 PM
new sc 4 with 1057 whining noise whitewhale Allison Aftermarket 5 09-26-2007 02:08 PM
Whining noise HD2DMAX Allison OEM 2 11-06-2006 07:43 AM
Whining noise samcrf450 Duramax First Generation: 2001-2004 (LB7) 10 03-09-2006 08:21 PM
whining noise??? jwautocenter Allison OEM 0 02-03-2005 10:55 PM


All times are GMT -4. The time now is 09:36 PM.


Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
© AutoGuide

SEO by vBSEO 3.6.0