4x4 will not engage - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 3 Old 02-28-2013, 12:37 PM Thread Starter
Member
 
Join Date: Mar 2012
Location: Eldon, MO
Posts: 43
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
4x4 will not engage

Hey guys, my 4x4 wont engage unless I lock the hubs, then it works fine. Why is this?

E99 7.3 6 speed, 5 inch exhaust
05 6.0 is offline  
post #2 of 3 Old 02-28-2013, 05:30 PM
Compression Ignition Addict
 
dnf12908's Avatar
 
Join Date: Aug 2007
Location: northeast B.C.
Posts: 580
Thanks: 5
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
Possible moisture in your vacuum lines, or if it's cold enough, iced up. I had this issue once.

Darrell

'03 F-350 6.0L C/C SB FX4 SRW
SCT X3 w/tunes by MKM
MBRP exhaust-turbo back
EGR delete
ARP studs
OEM gaskets
ELC coolant & filter
MTW Stage 1 turbo w/billet wheel
FPR (blue spring)
'04 upgraded front cover
Amsoil bypass oil filter
Insight CS monitor
GloShift gauges (fuel pressure, voltage)
Harley headlights
2008 rear diff. cover
EnviroSave powertrain treatment,
dnf12908 is offline  
post #3 of 3 Old 03-01-2013, 05:43 AM
Premium Member

 
twoicebergs's Avatar
 
Join Date: Sep 2008
Location: Oakbank, Manitoba
Posts: 3,431
Thanks: 8
Thanked 125 Times in 117 Posts
Mentioned: 4 Post(s)
Quoted: 36 Post(s)
Feedback Score: 0 reviews
I believe he is in Missouri. Do a check of your vacuum hoses and follow it up to the collector. It usually would crack near the axle hubs. If you don't find it visually, do a vacuum check of your hubs and of the system.

http://www.powerstroke.org/forum/att...works-esof.pdf

Frank
2007 F-250 Lariat Crew. MBM 190/50s,
KC-68 Stage 3 Turbo,
DashBoss/F/P, and a few other goodies
Stiction Problems - Fix it yourself! - http://www.powerstroke.org/forum/gen...ml#post4509754
Want to modify your injectors DIY - http://www.powerstroke.org/forum/6-0...ger-flows.html

Working for Toys
twoicebergs is offline  
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:
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:
OR

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
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