Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > 2004 - 2008 Ford F150
Sign in using an external account
Register Forgot Password?


Welcome to F150 Forum!
Welcome to F150 Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 04-24-2010, 03:00 PM   #1
Junior Member
 
Join Date: Apr 2010
Posts: 3
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default ***PICS... Rear Diff and Transmission Fluid Leak***

I have a 2004 F150 Lariat Model. 4x4., 5.4L. Auto Transmission.
86k miles. I have this truck for 3 years and it has not gave me any issue at all. I'm very happy with it.

This year I've noticed fluid leaking from the rear diff. It's really strange, the fluid is not leaking right where the diff is at it is actually leaking out of a small hole from the drive shaft. See circle pics.

And then I also noticed leaking from the transmission. See pics. Any ideas of what I'm looking to spend? or how easy it is to do it yourself?

Thanks guys.


[img]http://www.f150forum.com/attachment.php?attachmentid=16615&stc=1&d=12721355 19[/img]
Attached Thumbnails
***PICS... Rear Diff and Transmission Fluid Leak***-f150-rear-diff-leak.jpg   ***PICS... Rear Diff and Transmission Fluid Leak***-dsc00006.jpg  
xiongb1 is offline   Reply With Quote
Old 04-24-2010, 03:34 PM   #2
Senior Member
 
Shiny's Avatar
 
Join Date: Jul 2009
Location: Dubai, UAE
Posts: 254
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

From what I can see. It Looks like your Transmission rear seal is leaking.
Should not be too expensive. Rear seal that is it.
Good luck hope it is just the seal.
Shiny is offline   Reply With Quote
Old 04-24-2010, 08:27 PM   #3
Junior Member
 
Join Date: Apr 2010
Posts: 3
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Yeah. I hope nothing is serious damage. Btw I do have a 21 wakeboarding boat that o haul every summer every weekend to the lakes and river. Didn't know if that would apply more stress on the transmission and rear diff.
xiongb1 is offline   Reply With Quote
Old 04-24-2010, 08:59 PM   #4
Paint it black
5 Year Member
 
blackbetty's Avatar
 
Join Date: Oct 2007
Location: washington dc
Posts: 2,649
Mentioned: 0 Post(s)
Thanks: 0
Thanked 8 Times in 8 Posts
Feedback Score: 0 reviews
Send a message via AIM to blackbetty
Default

When you tow anything it is considered in that "Heavy/off road" use category. I does lead to higher temps and more wear on the drive train and even the motor. More frequent fluid changes are recommended and you should be nearing your 2nd as the first one is 60k and then 30 there on after if i remember correct from the manual.

This probably isnt the cause of the boat and just a seal issue as stated above unless there is a crack or some other damage that is hidden, which is really unlikely.

As far as the diff, i really cant give you any idea, there isnt fluid in the shaft and the input pinion is sealed from the universal so id guess water but not sure there. maybe your parked at a decline and fluid is running out the input pinion seal onto the universal but with out looking i cant tell.

Also your tranny fluid should be a redish heavy fluid, not clear?
__________________
05 STX SuperCab 4.6L 4x4My truck build up link
Lightly modded 271.5/336.9 (sct)
blackbetty is offline   Reply With Quote
Old 04-25-2010, 12:20 AM   #5
Junior Member
 
Join Date: Apr 2010
Posts: 3
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Yeah the transmission has a very minor leak. I think it's seeping thru the gasket. The rear diff. is definte leaking thru that area on the drive shaft. It is very strange indeed. Anyways ill have this local transmission shop look at both of them.
xiongb1 is offline   Reply With Quote
Old 04-25-2010, 04:02 AM   #6
Senior Member
 
Join Date: Sep 2009
Posts: 180
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

The only thing sealing the pinion there are the splines on the yoke and pinion and the nut that holds the yoke to the pinion. Maybe the nut isn't tight enough? That is a weird place for it to leak.
RahX is offline   Reply With Quote
Old 04-26-2010, 03:51 PM   #7
Senior Member
 
Shiny's Avatar
 
Join Date: Jul 2009
Location: Dubai, UAE
Posts: 254
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

What you can do is, give it a god wash using a degrease. let it dry and drive for 50 or 100 mil. then you will now where it is coming from.
Shiny is offline   Reply With Quote
Old 04-26-2010, 09:46 PM   #8
^ drinks KC Tea
5 Year Member
 
Mike's Avatar
 
Join Date: Apr 2008
Location: maple grove mn
Posts: 2,228
Mentioned: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Default

if the fluid level is fine and theres no drips on the ground leave it be. my diff leak is way more noticable and it even leaves a few drips if parked a long time. its done it for a month or 2 and when i pulled the plug off the side the fluid was right at the top
__________________

burnout here
Exhaust true duals no cats no mufflers https://www.youtube.com/watch?v=XR7Y...e_gdata_player
Other vehicle: 01 2500hd 6" lift 35s 8.1 vortec with an Allison
Mike is offline   Reply With Quote
Old 04-26-2010, 09:46 PM
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Changing rear diff fluid... paul64 1997 - 2003 Ford F150 2 03-16-2010 09:36 AM
Rear diff. Fluid Killer48 1997 - 2003 Ford F150 2 03-08-2010 04:28 PM
What rear diff. fluid? FX4Nick Maintenance Shop 3 09-23-2009 09:31 PM
Rear Diff Fluid SickF1fifty 2004 - 2008 Ford F150 5 06-28-2009 11:37 PM
Rear diff fluid fordfan1991 1987 - 1996 F150 8 01-05-2009 08:02 PM

 

The Mustang Source
All times are GMT -4. The time now is 07:10 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.5.2
Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.