Humming noise -- help!!! - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-17-2012, 06:11 PM
Member
 

Join Date: Jul 2011
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Humming noise -- help!!!

As I got about 15 miles from home after a 600 mile pull with my 8k fifth wheel I started to notice a bit of a hum coming from the rear end of the truck I am not sure where to start looking, could be heated brakes, a rear diff or even transfer case. I have let the truck cool and unloaded it. before taking it for another quick spin. the noise increases from ~10mph till 50 or so before I don't notice it over any of the other truck noise (wheels and motor). IS there a place to look first with the truck, I don't feel that it is trans related because shift points do not affect the noise whatsoever. at first recognition it sounded like possibly a wheel bearing on the trailer or brakes not releaseing on the trailer unfortunatly the trailer is fine and the noise in in the back of the more expensive vehical

Any help will be greatly appreciated.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 06-17-2012, 06:32 PM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,058
Thanks: 0
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
Check the ujoints.
Reply With Quote Quick reply to this message
  #3  
Old 06-17-2012, 07:59 PM
Member
 

Join Date: Jul 2011
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Wouldn't u-joints make more of a rattle or vibration? Not that I wont check them, just curious, I am kinda thinking it could be a carrier bearing which could have failed due to u joints
Reply With Quote Quick reply to this message
  #4  
Old 06-18-2012, 07:44 PM
Glow Plugs Only
 

Join Date: Mar 2011
Location: Ontario, Canada
Posts: 1,442
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Is it still there if you let of the fuel pedal and drop the transmission into neutral while still coasting along?
Reply With Quote Quick reply to this message
  #5  
Old 06-19-2012, 04:12 AM
Member
 

Join Date: Jul 2011
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
yes it is, it doesn't really change pitch when I do it
Reply With Quote Quick reply to this message
  #6  
Old 06-19-2012, 04:22 AM
Glow Plugs Only
 

Join Date: Mar 2011
Location: Ontario, Canada
Posts: 1,442
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by cdelap View Post
yes it is, it doesn't really change pitch when I do it
Not my truck but I had the weirdest hum coming from the passenger side rear of my Jetta a month back. Same symptoms as your experiencing. Started at about 15MPH and got louder and the frequency picked up with speed. Stayed the same if I hard turned left or right and coasting engine off in neutral. I checked everything and it ended up being a wheel bearing. I've changed out many a worn bearing in my time but never one that sounded like this one and when spun by hand wasn't dry or any gritty feeling and no play in it like they normally have. Three tiny little imperfections in the race.
Reply With Quote Quick reply to this message
  #7  
Old 06-19-2012, 06:52 AM
Member
 

Join Date: Jul 2011
Posts: 60
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
After putting a sonic ear on the truck, I am leaning towards wheel bearings, i may have a pinion bearing going as well but can necessarily tell until I get these wheel bearings going I tow with a 80 HP custom tune on my edge ... could this add wear to the pinion bearings?
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 Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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
Display Modes

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



All times are GMT -8. The time now is 07:55 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors