Symptoms of worn stock LSD? - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 2 Old 01-23-2012, 10:14 AM Thread Starter
Compression Ignition Addict
audiocontr's Avatar
Join Date: Jul 2010
Location: Falls Chruch
Posts: 465
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Symptoms of worn stock LSD?

I'm pretty confident my 135k mile stock LSD is no longer functioning. We were pulling on gravel and I saw 1 wheel spin while the other just sat there. Its not that big of a deal for me as is, but i was wondering if it would present similar symptoms as a slipping transmission? Is there a loss of mileage possible? Does it prevent power from making it to the wheels?

Nonconformist. Functionality over bling.

My three rules for 7.3l troubleshooting: 1) Replace CPS and keep a spare. 2) Replace FPR and know your fuel pressure. 3) Hook it to a scanner and check for codes.
audiocontr is offline  
Sponsored Links
post #2 of 2 Old 01-23-2012, 11:10 AM
Compression Ignition Addict
Join Date: Dec 2007
Posts: 6,737
Thanks: 7
Thanked 320 Times in 309 Posts
Mentioned: 9 Post(s)
Quoted: 184 Post(s)
Feedback Score: 3 reviews
No, nothing like that. The worst thing that can be happening is those frictions (clutches) are so worn that you have a conventional "open" diff. No loss of getting the power to the road.

Did it ever work for you though? See the problem with the Factory LS is that Ford adds Way too much Friction Modifier to the oil and kind of prevents it from working well (I think it's less complaints for them to deal with). So, if you don't know the history of it's performance you could try to change the fluid that contains no modifier then put in about 1/4 of what's recommended and see it it actually Does work (then add just enough modifier to stop excessive clutch chatter).

You can also replace those clutches if that's all it needs....

My LS actually works pretty well
NoRalPh is offline  
Sponsored Links

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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

For the best viewing experience please update your browser to Google Chrome