Rear end Humming when let off the gas pedal - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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 09-23-2007, 08:54 AM
Member
 

Join Date: Sep 2007
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Rear end Humming when let off the gas pedal

1992 ford f250. I have noticed a loud hum coming from the rear end when I let of the gas at any speed higher then 10 mph. If I apply a little bit of pressure on the pedal the noise goes away or isn't as loud. I was thinking something is wrong in the differential (ring and pinion) or something else. If it is the ring and pinion, how hard are they to replace and should I have a professional do it or should I just find rear end from the junkyard and swap it out.
Thanks for all your help.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 09-23-2007, 09:26 AM
Let's Run'em


 
Join Date: May 2007
Location: El Paso, TX
Posts: 17,682
Thanks: 4
Thanked 13 Times in 12 Posts
Feedback Score: 2 reviews
Send a message via AIM to TwinTurboStroker
Sounds to me like your ring and pinion are not as "tight" as they once were and there is a lot of playing in them now it all points to bearings.......when there is no load on the bearing, when you let off the gas, the carrier or pinion are free to move around.....regardless it needs to be rebuilt and I highly sugguest that you get a professional to do it.....because there are special tools required and measurements that need to be taken like back lash and bearing shimms for the carrier and/ pinion....good luck bud
Reply With Quote Quick reply to this message
  #3  
Old 09-23-2007, 10:11 AM
Compression Ignition Addict
 

Join Date: Sep 2006
Location: So Cal
Posts: 268
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
^What he said.

Russell
Reply With Quote Quick reply to this message
  #4  
Old 09-26-2007, 02:31 PM
Powerstroke.org Rookie
 

Join Date: Jul 2007
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
had the front bearing in my diff go out earlier this week

it souned like wha you describe
Reply With Quote Quick reply to this message
  #5  
Old 09-26-2007, 08:25 PM
Powerstroke.org Fanatic
 

Join Date: May 2006
Location: South Carolina Lowcountry
Posts: 96
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Sounds like a bearing to me also, had the same problem with a Suburban one time that I used for heavy towing. It was the pinion bearing.
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 04:31 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