Help! 4x4 not engaging properly.
Thread Starter
|
New User
Joined: Mar 2010
Posts: 8
Likes: 0
Help! 4x4 not engaging properly.
I have a 1999 superduty with a v10 engine. I noticed recently that my 4X4 wasnt engaging so i checked it and found that the hub lock were not working so I got myself some new heavy duty Warns. when i changed them out i noticed the hub bearing was messed up so I changed both hub bearings. I installed the new parts and picked it up on jackstands and the left front wheel is not engaging it sounds like it wants to, it gives half a spin and it stops. Does anyone know what else it could be?
Super Moderator
Joined: Aug 2008
Posts: 37,375
Likes: 1,861
From: Frederick, MD
what about the other wheel? Does it turn along with the front drive shaft?
Your front end is gonna be an open diff, so both wheels may or may not turn at the same time. What you are after is that front drive shaft locked to the transfer case and putting some power to at least one wheel.
Your front end is gonna be an open diff, so both wheels may or may not turn at the same time. What you are after is that front drive shaft locked to the transfer case and putting some power to at least one wheel.
Freshman User
Joined: Oct 2004
Posts: 42
Likes: 0
From: wichita,ks.
my 01 7.3 f350 has locking diff. and all wheels will turn the same way. if i turn one tire the other will turn the same direction. if you don't have a locking diff. and you turn the tire one will turn CCW and the other will turn CW. This is with the truck jacked up tires off the ground, so if you have it in gear one tire will turn and the other might not, or turn slower. With locking diff. all 4 tires will turn the same direction.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
I have a 1999 superduty with a v10 engine. I noticed recently that my 4X4 wasnt engaging so i checked it and found that the hub lock were not working so I got myself some new heavy duty Warns. when i changed them out i noticed the hub bearing was messed up so I changed both hub bearings. I installed the new parts and picked it up on jackstands and the left front wheel is not engaging it sounds like it wants to, it gives half a spin and it stops. Does anyone know what else it could be?
Did you put grease in the Warns? If so, heavy grease can cause them to not engage as quickly as you want them to.
What I do with my Warns is lock them BEFORE I get stuck
Move a few feet forward while turning the wheels back and forth, and they lock everytime. They DO need some motion to lock, they hardly ever lock right away without any motion.
Thread Starter
|
New User
Joined: Mar 2010
Posts: 8
Likes: 0
That front left wheel seems to lock somehow after the half spin. It doesnt turn even if i try to move it manually once i engage the 4X4. Im just wondering if thats normal. I dont think it is but ive never really owned a 4x4 before so im not sure.
Super Moderator
Joined: Aug 2008
Posts: 37,375
Likes: 1,861
From: Frederick, MD
once you lock it into 4x4 then the front drive shaft is connected (not free turning) to the transfer case. It is then able to pass that power onto the front wheels.
So out of 4x4 you should be able to turn the driveshaft even with the truck in park.
So out of 4x4 you should be able to turn the driveshaft even with the truck in park.
Trending Topics
Freshman User
Joined: Jun 2010
Posts: 27
Likes: 0
From: Northern California
Are you sure about that Sinex? Doesn't the T-case have to be in neutral for the drive shaft to turn freely?
Last edited by KINGSIZex; Jun 17, 2010 at 06:57 AM. Reason: Typo
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
And to be even more accurate, WITH THE HUBS UNLOCKED, and the transfer case in 4x2 (or selector switch on dash in 4x2), the front driveshaft should spin freely
Thread
Thread Starter
Forum
Replies
Last Post
F-250 Super Duty
1999 - 2003 7.3L Power Stroke Diesel
22
Mar 21, 2014 07:52 AM
wildwheelerb200
1999 - 2016 Super Duty
6
Apr 4, 2010 12:08 PM
