problems with 4x4
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problems with 4x4
Hey guys im new here and apologize if this is in the wrong spot. My issue is my 4x4 will not ingage. the light comes on but that is about it. I took of my center rim caps and tried putting them in manual instead of auto to see if that would help but nothing. Any ideas would be greatly appreciated. Thanx a bunch.
Cargo Master
Joined: Oct 2012
Posts: 2,333
Likes: 35
From: South Carolina
Tell me about your 99. Does it have the lever on the floor, or the **** on the dash (to shift to 4x4)?
Does 4WD LOW work? You can feel the difference in speed vs rpms. Even if only the rear wheels are turning, it would say the transfer case shift motor is doing its thing.
Your hubs - are the two positions "free" and "locked" or "auto" and "locked"? - What I'm asking is do you have auto hubs for shift-on-the-fly or a pure manual system?
When you tried rotating the **** on the hubs - it should be close to a full quarter turn. One truck I looked at was so stiff it took tools to engage it. When the hubs work right, it is no sweat for my wife to do it by hand. How were yours?
All these should help zero in on the problem.
Thanks!
Does 4WD LOW work? You can feel the difference in speed vs rpms. Even if only the rear wheels are turning, it would say the transfer case shift motor is doing its thing.
Your hubs - are the two positions "free" and "locked" or "auto" and "locked"? - What I'm asking is do you have auto hubs for shift-on-the-fly or a pure manual system?
When you tried rotating the **** on the hubs - it should be close to a full quarter turn. One truck I looked at was so stiff it took tools to engage it. When the hubs work right, it is no sweat for my wife to do it by hand. How were yours?
All these should help zero in on the problem.
Thanks!
Thread Starter
|
New User
Joined: Dec 2013
Posts: 5
Likes: 0
Tell me about your 99. Does it have the lever on the floor, or the **** on the dash (to shift to 4x4)?
Does 4WD LOW work? You can feel the difference in speed vs rpms. Even if only the rear wheels are turning, it would say the transfer case shift motor is doing its thing.
Your hubs - are the two positions "free" and "locked" or "auto" and "locked"? - What I'm asking is do you have auto hubs for shift-on-the-fly or a pure manual system?
When you tried rotating the **** on the hubs - it should be close to a full quarter turn. One truck I looked at was so stiff it took tools to engage it. When the hubs work right, it is no sweat for my wife to do it by hand. How were yours?
All these should help zero in on the problem.
Thanks!
Does 4WD LOW work? You can feel the difference in speed vs rpms. Even if only the rear wheels are turning, it would say the transfer case shift motor is doing its thing.
Your hubs - are the two positions "free" and "locked" or "auto" and "locked"? - What I'm asking is do you have auto hubs for shift-on-the-fly or a pure manual system?
When you tried rotating the **** on the hubs - it should be close to a full quarter turn. One truck I looked at was so stiff it took tools to engage it. When the hubs work right, it is no sweat for my wife to do it by hand. How were yours?
All these should help zero in on the problem.
Thanks!
Cargo Master
Joined: Oct 2012
Posts: 2,333
Likes: 35
From: South Carolina
Might be the relays. IIRC there are two, so you can swap them and see if it will go into 4x4 and then fail to come out. Swap back to cure it if that happens.
It sounds like the transfer case motor is not shifting if it won't creep in low.
With the auto-hubs, some times pneumatic leaks develop, but manually locking them would still work.
Hope it is the relays, as they are cheaper than the motor!
It sounds like the transfer case motor is not shifting if it won't creep in low.
With the auto-hubs, some times pneumatic leaks develop, but manually locking them would still work.
Hope it is the relays, as they are cheaper than the motor!
Super Moderator
Joined: Aug 2008
Posts: 37,370
Likes: 1,858
From: Frederick, MD
to further narrow down the issue you could manually turn the hubs to lock. Then if you crawl under the truck the front drive shaft should not move.
Same if you turn the switch on the dash.
The transfer case has its own shifting motor.
So if the hubs lock and the drive shaft is locked in but no 4x4 then either the shift motor or the relays.
Same if you turn the switch on the dash.
The transfer case has its own shifting motor.
So if the hubs lock and the drive shaft is locked in but no 4x4 then either the shift motor or the relays.
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New User
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Ok thanx a lot for the replies guys. Where would i find the relays at? Would they be under the hood?
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Cargo Master
Joined: Oct 2012
Posts: 2,333
Likes: 35
From: South Carolina
See this thread (it has a picture) and see if your relays are in a similar location.
https://www.ford-trucks.com/forums/8...se-relays.html
https://www.ford-trucks.com/forums/8...se-relays.html
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