Squealing from Rear of Truck [VID] - Ranger-Forums - The Ultimate Ford Ranger Resource


General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 05-29-2016
Member
Thread Starter
 
Join Date: May 2016
Location: EUGENE
Posts: 15
Squealing from Rear of Truck [VID]

Thanks for your help. I have yet anther issue with this new truck... 08 Ford Ranger 4x4 4.0 v6 with 79K. Squeal from rear of truck, its intermittent, usually happens after accelerating and then beginning to coast. Pressing either the gas or brake will stop the squeal sometimes, other times it will persist. It seems in the last couple days its gotten more frequent. I did replace the idle pulley and tensioner... Please listen to the vid

Squeal Rear of 08 Ford Ranger 4x4 4.0 v6 - YouTube
"> Squeal Rear of 08 Ford Ranger 4x4 4.0 v6 - YouTube
" type="application/x-shockwave-flash" width="425" height="350">

Last edited by TheBigFoote; 05-29-2016 at 01:43 PM.
Reply With Quote
  #2  
Old 05-29-2016
JAMMAN's Avatar
Member
 
Join Date: May 2016
Location: Grove City, OH
Posts: 90
Wow never heard that before, you wouldn't happen to be hauling crickets home for any reason?

Has it been getting worse/more frequent/changed the MPH it starts happening at? Does it go away at highway speeds or get worse?
Reply With Quote
  #3  
Old 05-29-2016
Member
Thread Starter
 
Join Date: May 2016
Location: EUGENE
Posts: 15
Heh, well I do haul crickets for our turtle, maybe ill let him loose on the underside and see if thats the fix. It seems to be getting louder and more frequent. I havent noticed if its changed MPH wise, usually between 20-50MPH, goes away at higher speeds, 99% of the time doesn't occur when accelerating but once I release the gas. Gas mileage has also tooken a bid dive but im not sure if its related...
Reply With Quote
  #4  
Old 05-30-2016
Member
Thread Starter
 
Join Date: May 2016
Location: EUGENE
Posts: 15
Going with wheel bearings, ill be replacing tomorrow to see if im right.
Reply With Quote
  #5  
Old 05-30-2016
JAMMAN's Avatar
Member
 
Join Date: May 2016
Location: Grove City, OH
Posts: 90
Check rear u-joint too. Good luck let us know if it cures the problem.
Reply With Quote
  #6  
Old 05-30-2016
vista4.0's Avatar
Member
iTrader: (3)
 
Join Date: Jan 2009
Location: Beaver Falls, PA
Posts: 2,824
My guess would be u joints
Reply With Quote
  #7  
Old 05-31-2016
Member
Thread Starter
 
Join Date: May 2016
Location: EUGENE
Posts: 15
Well did both bearings today, not the issue.. Boy those were tuff to get out. Also anyone know why I have a 8.8 tag on my differential when its a 7.5? I got the 8.8 bearings and seal, pulled it and it was definitely a 7.5. On to the U-joint.
Reply With Quote
  #8  
Old 06-01-2016
vista4.0's Avatar
Member
iTrader: (3)
 
Join Date: Jan 2009
Location: Beaver Falls, PA
Posts: 2,824
28 spline 8.8s and 7.5s share the same axle bearings and seals. But if you have a 4.0 you have an 8.8.
Reply With Quote
  #9  
Old 06-01-2016
Member
Thread Starter
 
Join Date: May 2016
Location: EUGENE
Posts: 15
Quote:
Originally Posted by vista4.0 View Post
28 spline 8.8s and 7.5s share the same axle bearings and seals. But if you have a 4.0 you have an 8.8.
That's the thing, no question is a 4.0. I'm not sure I understand, I held a bearing for an 8.8 and had to return it for a smaller 7.5 bearing, I don't think the seal and bearing are the same?
Reply With Quote
  #10  
Old 06-01-2016
vista4.0's Avatar
Member
iTrader: (3)
 
Join Date: Jan 2009
Location: Beaver Falls, PA
Posts: 2,824
Quote:
Originally Posted by TheBigFoote View Post
That's the thing, no question is a 4.0. I'm not sure I understand, I held a bearing for an 8.8 and had to return it for a smaller 7.5 bearing, I don't think the seal and bearing are the same?
There is a 31 spline 8.8 that uses bigger bearings and seals. Most people working parts counters dont have an IQ high enough to figure that out. They just see 8.8 without reading the fine print.

The 31 spline 8.8 was used in a very limited capacity in the ranger. 99% (just a random percentage) of rangers use the Ford 7.5 or 28 spline 8.8.
Reply With Quote
  #11  
Old 06-01-2016
Member
Thread Starter
 
Join Date: May 2016
Location: EUGENE
Posts: 15
Ahhh, I see. That makes sense, thanks for clarifying. I ordered my new u joints and hardware yesterday, coming in this Thursday. Hopefully that's all it is.
Reply With Quote
  #12  
Old 06-03-2016
Member
Thread Starter
 
Join Date: May 2016
Location: EUGENE
Posts: 15
Parts came in and everything went in nicely. You guys were right, rear u-joint, I never heard one squeal but thats what it did.
Reply With Quote
  #13  
Old 06-03-2016
JAMMAN's Avatar
Member
 
Join Date: May 2016
Location: Grove City, OH
Posts: 90
If you would have let it go for a few more weeks it would have become painfully obvious, glad you fixed it.

I have read this 28 spline 8.8 VS 7.5 bearing and seal issue like 6 times here and there LOL always the exact same issue, parts associates without a clue. I have never had to deal with it but when I do I am definitely prepared LOL.
Reply With Quote
  #14  
Old 06-14-2016
Member
Thread Starter
 
Join Date: May 2016
Location: EUGENE
Posts: 15
Oh lord its back, it sounds different and quit for 2 days. I've replaced the rear wheel bearings and both u-joints on the driveshaft, I can tell its coming from the rear of the truck.

Happening on acceleration at freeway speeds and coming to a stop. After replacing the u-joints, during acceleration it sounds almost like a spinning squeal. Stopping it sounds more like metal scraping lightly... Hope that makes sense to someone.

Any other ideas? I replaced the pinon seal about a month ago, if I didn't get the pinon bearing load right could it cause this issue? I mean I took a picture, counted the threads and drew a line with a paint marker so i'm pretty sure I tightened the bolt to the same pre-load.
Reply With Quote
  #15  
Old 06-17-2016
Member
Thread Starter
 
Join Date: May 2016
Location: EUGENE
Posts: 15
Ok so I broke down and took my Ranger to a local garage. Guys was an ex-ford tech and knew what it was almost as soon as he heard it. Turns out the new pinion seal I installed was rubbing on the dust cover between the pinion flange and deferential. He opened it up, removed the dust cover and no more squeal...

You can actually see exactly where it was rubbing, I never in a million years would have caught that.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Loud squealing/whinning/high pitch wha sound coming from rear end. Hatcher686 Drivetrain Tech 10 04-27-2015 10:02 AM
Rear end high(er) pitch noise! Help! (Vid) Aerzy General Technical & Electrical 1 09-18-2011 10:37 PM
"87 Ranger Squealing! Pulley's?? MetalMech SOHC - 2.3L & 2.5L Lima Engines 6 04-05-2007 06:59 PM
Squealing Noise... Help Please Marcaronio 2.9L & 3.0L V6 Tech 8 03-13-2007 08:28 PM
Brake squealing problems. Red_Ak_Ranger General Technical & Electrical 25 08-02-2006 01:58 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 05:08 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.