4x4 working?
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Trailering
Joined: Oct 2005
Posts: 20
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From: Idaho
4x4 working?
I noticed I was not shifting into 4x4 electronically and replaced the blown fuse in the engine compartment. Now the 4x4 light goes on, but I don't think it is engaging the system... How can I tell, or troubleshooting ideas?
The back end breaks free very easily, but there seems to be a little pull in the front. Is it possible to have unequal power to the wheels?
The back end breaks free very easily, but there seems to be a little pull in the front. Is it possible to have unequal power to the wheels?
Laughing Gas
Joined: Jun 2011
Posts: 1,223
Likes: 89
From: TN
You probably have a vacuum leak somewhere. It could be a bad line, an axle seal or the vacuum pump. Try manually locking hubs and turning axle shafts. Then try with hubs on auto. You may need to roll the vehicle down the road or neighborhood to get a good diagnosis. If it hubs engage 4x4 on manual but not auto, then you have a leak or a bad vacuum pump.
You can check in the driveway by jacking the front end off the ground and rotating the wheels. Be sure to chock the wheels first. Try all modes of 4x4.. hubs locked, unlocked, 4x4 engaged, disengaged. It can be a tedious process.
You can check in the driveway by jacking the front end off the ground and rotating the wheels. Be sure to chock the wheels first. Try all modes of 4x4.. hubs locked, unlocked, 4x4 engaged, disengaged. It can be a tedious process.
Logistics Pro
Joined: Nov 2004
Posts: 4,795
Likes: 47
With the wheels on the ground, you should be able to turn the front axles by hand with it in 2wd and the hubs not locked.
If you can turn them by hand, engage the 4wd inside and try to turn them again. If you can't, then the front wheels are engaged. If you can, then manually lock the hubs and try turning them again - if you can't , then the hubs aren't locking automatically. You csn still use it though just by locking the hubs manually.
If you can turn them by hand, engage the 4wd inside and try to turn them again. If you can't, then the front wheels are engaged. If you can, then manually lock the hubs and try turning them again - if you can't , then the hubs aren't locking automatically. You csn still use it though just by locking the hubs manually.
New User
Joined: Dec 2016
Posts: 17
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I'm having the same issue, of course it had to happen on the first bad snow of the year, so the roads are not plowed and couldn't make it to work.
I know they are not engaging automatically, front tires don't spin under power at all.
This is my first 4x4 with an automatic switch, how do I lock the hubs manually? I'm used to seeing the big red locks in the center of the wheels...
I have a 2004 F350.
Thanks for any help
I know they are not engaging automatically, front tires don't spin under power at all.
This is my first 4x4 with an automatic switch, how do I lock the hubs manually? I'm used to seeing the big red locks in the center of the wheels...
I have a 2004 F350.
Thanks for any help
Logistics Pro
Joined: Nov 2004
Posts: 4,795
Likes: 47
In the center of each front wheel is a small dial. If you get real close to it, you see "auto" with a directional arrow and "manual" with an opposite directional arrow. Just turn the hub on both front wheels to "manual".
Now the front hubs are locked to the axle.
Now the front hubs are locked to the axle.
New User
Joined: Dec 2016
Posts: 17
Likes: 0
Thanks
as soon as I can dig the drift away, Ill go look. I am assuming they are behind the center cap then, I don't have the stock wheels, truck was lifted when i bought it and have different wheels.
Apologize for my ignorance.
as soon as I can dig the drift away, Ill go look. I am assuming they are behind the center cap then, I don't have the stock wheels, truck was lifted when i bought it and have different wheels.
Apologize for my ignorance.
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glovemeister
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Feb 5, 2011 02:15 PM
