Help 02 F250 Auto 4wheel Drive won't enguage - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 11-29-2010, 10:44 AM Thread Starter
Member
 
Join Date: Sep 2006
Location: Twin Falls Idaho
Posts: 80
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Help 02 F250 Auto 4wheel Drive won't enguage

This seems to be an intermittent problem. Some days my auto 4x4 engages and other times it won't. When it does engage I can here the vacuum pump working and other times not. Is this whole pump the issue. Dealer wants 235.00 for a new one but before I go there is there anything else I'm missing. Lots of snow and ice around here and its a bear during take off

Suggestions?

Thanks

2002 F250 7.3 PSD Crew Cab.
4" Borla exhaust with 5" tip
Airaid intake
BullyDog 6 Position 4 Bank Chip
AutoMeter Pyro & Boost on pilar

Nothing better than seeing the look on the face of the kid driving the Mustang thru my rear view mirror.
Dang I just got creamed by a truck
Scooterdog is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 11-29-2010, 10:58 AM Thread Starter
Member
 
Join Date: Sep 2006
Location: Twin Falls Idaho
Posts: 80
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
PS... The 4x4 light is on

2002 F250 7.3 PSD Crew Cab.
4" Borla exhaust with 5" tip
Airaid intake
BullyDog 6 Position 4 Bank Chip
AutoMeter Pyro & Boost on pilar

Nothing better than seeing the look on the face of the kid driving the Mustang thru my rear view mirror.
Dang I just got creamed by a truck
Scooterdog is offline  
post #3 of 5 Old 11-29-2010, 09:09 PM
dmd
Compression Ignition Addict
 
dmd's Avatar
 
Join Date: Oct 2008
Posts: 451
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Pump is for hubs(and other vacuum stuff), not the transfer case. Does the transfer
case engage and the hubs not?

Need a better description of the exact problem.

'00 F350 Supercrewzer Lariet, PSD, Auto, 3.73, CC, 4x4, SWB, SRW, 6-pos Chip, 6637 filter, 4-inch turbo back exhaust, Garrett 38r w/ high flow outlet, ITP overboost eliminator, AIH delete, Adrenaline HPOP, BTS Trans, Swamps IDM, In-tank & Pre-Pump mod, Heater Valve mod, X-car Sound Pannel mod, Train Horns / Packages: Trailer Tow, Camper, Off-Road. Overhead monitor DVD/TV/VCR (VCR under rear seat w/ 6 CD changer)
www.employees.org/~calridng (Offroad riding in California)
dmd is offline  
post #4 of 5 Old 11-29-2010, 09:25 PM
duct tape & zip ties

 
bigcountrysg's Avatar
 
Join Date: Jul 2006
Location: Willis, MI
Posts: 10,761
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to bigcountrysg
I would be checking for a vaccuum leak at the hubs or the lines going to the hubs. That is usually the problem.

What I would do is manually lock in the hubs and see how your 4wd is working. Is it shifting into 4wd like it should. If so then it is a hub/vaccuum problem.

I have a 2002 with 227,000 miles on it. I have yet to have to replace the vaccuum pump.


Your Actions Today, Decide Your Future Tomorrow

2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
bigcountrysg is offline  
post #5 of 5 Old 11-30-2010, 12:54 PM
Powerstroke.org Rookie
 
Join Date: Jul 2010
Location: Redmond
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I am having the same problem right now. I have an 02 f-350 with the manual/auto hubs and I cannot get the 4x4 to auto engage, but if I manually lock the hubs it will go right into 4 wheel drive.
02redstroker 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