Transfer case problem
Thread Starter
|
Junior User
Joined: Mar 2010
Posts: 71
Likes: 0
From: Melba Idaho
Transfer case problem
I have a 2002 f250 with a 4 speed auto. The problem is that the transfer case won't shift in to 4 low, but it shifts in to 4 hi with no problems. BTW it is electric shift. I have done the proper shift procedures, put it in neutral step on break ect. Any advice and tips would be appreciated. Thank you in advance
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
I have had the ESOF system be finicky going in and out of low range already. Seems to be worse when it is not used very often. What has worked for me in the past is letting the vehicle roll a little in neutral and then shift into 4 low. You have to screw around with it a little. Would not hurt to manually lock the hubs too and see if that makes a difference.(maybe one hub is not locking in) One of the reasons that when I got my new 04' I got the manual 4X4. Though the ESOF is darn handy when it works.
Lead Driver
Joined: Nov 2008
Posts: 8,449
Likes: 70
From: South Jersey
Id take the motor off the tcase and see is dirt is packed in the motor. Id then clean and regrease the motor shaft and gear with some waterproof grease. Id also manually turn the shaft that moves the shift fork for high and low range and make sure it turns freely. If after that it still doesnt work and you have the truck in N and with brake applied and it still wont go into low, the motor might be weak and needs replacing
Lead Driver
Joined: Nov 2008
Posts: 8,449
Likes: 70
From: South Jersey
When the esof works its beautiful, only readon i removed my esof hubs was because everyone i knew with a SD with the esof was having problems and i was so sick of fixing their trucks i just removed mine, installed a plug into the knuckle and removed all the vacuum lines back to the pump and capped it just so i would never have an issue. It does suck that i have to het out and lock in my WARN hubs but it was worth it i suppose. If i ever can afford a brand new truck it will have the manual tcase though...
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
Which did you do? Manually lock the hubs then try to switch to 4x4 LOW? Or let the truck drift a little while shifting into 4x4 LOW?
Thread Starter
|
Junior User
Joined: Mar 2010
Posts: 71
Likes: 0
From: Melba Idaho
Trending Topics
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
There is probably a vacuum leak somewhere in the system or a component failure then.
A vacuum pulse is what locks the hubs when the switch is turned to 4X4. If the hubs are not locked the tcase will not want to shift into 4X4, especially 4X4 LOW. Having the hubs locked allows everything to mesh properly. You can feel it on a truck with a manual transfer case easier than with the ESOF, that the gears don't want to mesh when the hubs are unlocked.
A vacuum pulse is what locks the hubs when the switch is turned to 4X4. If the hubs are not locked the tcase will not want to shift into 4X4, especially 4X4 LOW. Having the hubs locked allows everything to mesh properly. You can feel it on a truck with a manual transfer case easier than with the ESOF, that the gears don't want to mesh when the hubs are unlocked.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread Starter
|
Junior User
Joined: Mar 2010
Posts: 71
Likes: 0
From: Melba Idaho
It seems to me that the Esof system is too prone to failure. I think I will do what super duty scaler said he did and be done with it. Is there any adverse problems with using manual hubs?other than the convenience of not having to turn the hubs in.
Thread
Thread Starter
Forum
Replies
Last Post