Vacuum lines and 4X4 auto adventure - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 11-21-2010, 10:31 PM Thread Starter
Gib
Powerstroke.org Rookie
 
Join Date: Oct 2010
Location: Texas
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Vacuum lines and 4X4 auto adventure

I am new to site, but my inquires have been dealt with fast and fixed problems. Being a Ford owner for first time, you have tremendously helped me.

Doing a PM, I noticed a vacuum line on driver's side that seems to run to caliber or general area on topside. It was off and cracked. I cut line back to the good stuff, placed back on fitting and zip tied it.

I am also learning of this auto and lock on the front hubs. My auto does not work at all as in no High or Low engaging. I put hubs in lock and it works.

Does vacuum line have anything to do with this or is there another common problem in this area? Maybe it is an electronic issue?

I am trying to isolate several things. It seems when auto did work a time or two I could back into jetties, but upon departure several hours later, it seems I had lost my four wheel drive. Can truck disengage 4x4 upon start-up?

I will cease for now and wait for reply.

Thank you for your help!!
Gib is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 11-21-2010, 11:51 PM
Serving Our Country!
 
wacko37's Avatar
 
Join Date: Mar 2009
Posts: 137
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I'm kinda wonderin the same thing. My auto never works though.

So far all i have is FBD 4" turbo strait back
6.5" Pro-Comp lift
Full stereo with a custom made sub box I built
Harley Headlights
Autometer gauges
SCT X3 with IDP tunes
BPD EGR delete and oil cooler
ARP Head studs
6.4L Banjo bolts
18" MT classic lock rims with 35x13.50 cooper STT tires

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
wacko37 is offline  
post #3 of 5 Old 11-23-2010, 05:47 PM
Powerstroke.org Rookie
 
Join Date: Nov 2010
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
vacuum lines & 4x4 auto

i am also trying to make sure i understand how the "auto" 4 whl option works. I have had other 4 wheel drives that were either all manual or auto hubs with a manual shift transfer case.

my 99 powerstroke 7.3 has the auto knob on the dash. i replaced my vacuum lines from the front hubs (near calipers) and up to frame were they connect to plastic vacuum lines, just because they were old and soft. It sounds like you have a vacuum line leak somewhere, or most likely the o-rings in the front hubs themselves, but the "lock" option should overide the auto hub vacuum engagement as long as your switching on your transfer case is properly functioning all the time.

my hiccup is my hub's appear original but all i have is a "dot" on the face of the hub. i can't see any wording for lock or auto or anything. once i find the part number for a warn direct replacement for the auto hub i think i will replace the factory hubs.
maytor36 is offline  
post #4 of 5 Old 11-23-2010, 05:58 PM
Premium Member
 
Bad Night's Avatar
 
Join Date: Dec 2009
Location: Ohio
Posts: 2,426
Thanks: 4
Thanked 14 Times in 14 Posts
Mentioned: 0 Post(s)
Quoted: 3 Post(s)
Feedback Score: 1 reviews
Those vacuum lines are for your auto 4x4 . They are what engauges the hubs when you use the shift on the fly switch without manually locking the hubs

07 F-250 Outlaw , Rough Country 6 inch lift , 37-13.5 R20 Nitto Mud Grapplers , MBRP 5" Exhaust , 08 Mirrors , S&B intake , 5% Tint sides and back , 35% windshield .


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Bad Night is offline  
post #5 of 5 Old 11-23-2010, 06:03 PM
Premium Member
 
Bad Night's Avatar
 
Join Date: Dec 2009
Location: Ohio
Posts: 2,426
Thanks: 4
Thanked 14 Times in 14 Posts
Mentioned: 0 Post(s)
Quoted: 3 Post(s)
Feedback Score: 1 reviews
They way out trucks work is if you are just driving along in 2wd and hit a slick spot you just flip the switch on the dash . It engages the trans case and locks the hubs with vacuum . The reason some trucks have both this and manual locks on the hubs is because it is recommended to lock the hubs manually when you are going be in 4x4 for extended periods of time . Some examples would be plowing or offroading .

07 F-250 Outlaw , Rough Country 6 inch lift , 37-13.5 R20 Nitto Mud Grapplers , MBRP 5" Exhaust , 08 Mirrors , S&B intake , 5% Tint sides and back , 35% windshield .


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Bad Night is offline  
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:
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