Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

4x4 issue

Thread Tools
 
Search this Thread
 
Old Jan 9, 2018 | 09:17 PM
  #1  
kx125str99's Avatar
kx125str99
Thread Starter
|
Mountain Pass
15 Year Member
Joined: Aug 2010
Posts: 122
Likes: 0
From: santa clarita
4x4 issue

hey guys my 4x4 last time I tried to use it didn’t help me haha. Wouldn’t engage in the 4low and when put in high with the ac is on vent switches to the defrost. Any ideas?
 
Reply
Old Jan 9, 2018 | 09:41 PM
  #2  
CousinCarl's Avatar
CousinCarl
Fleet Mechanic
15 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2008
Posts: 1,321
Likes: 250
From: North Texas
Common vacuum leak
 
Reply
Old Jan 10, 2018 | 06:43 AM
  #3  
JGRNAUT_7.3L's Avatar
JGRNAUT_7.3L
Mountain Pass
15 Year Member
Joined: Aug 2006
Posts: 203
Likes: 6
From: Port St Lucie, FL
If you still have the stock auto hubs definitely sounds like a vacuum leak. Easily fixed if you can track down where the leak is. You could also manually lock your hubs in if you needed 4x4 in mean time, just turn the dial to lock and make sure to unlock them when your done.
 
Reply
Old Jan 10, 2018 | 07:29 AM
  #4  
Dan V's Avatar
Dan V
Lead Driver
Photogenic
Photoriffic
Shutterbug
Joined: Jun 2013
Posts: 5,647
Likes: 891
From: north of Minneapolis, MN
Check the vacuum lines to the hubs (from the frame) for leaks.
 
Reply
Old Jan 10, 2018 | 06:14 PM
  #5  
kx125str99's Avatar
kx125str99
Thread Starter
|
Mountain Pass
15 Year Member
Joined: Aug 2010
Posts: 122
Likes: 0
From: santa clarita
Ok will do. thanks
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tstence
6.7L Power Stroke Diesel
2
Jun 27, 2017 01:44 PM
emeiers
1999 - 2003 7.3L Power Stroke Diesel
1
Mar 11, 2013 09:02 PM
robs01f250
1999 - 2003 7.3L Power Stroke Diesel
12
Aug 31, 2010 12:48 AM
sticks25
1999 - 2003 7.3L Power Stroke Diesel
5
Dec 9, 2008 06:32 PM
BadDogPSD
1999 - 2016 Super Duty
10
Dec 9, 2006 01:32 PM




All times are GMT -5. The time now is 05:13 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE