4x4 not working
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4x4 not working
I have a problem with my 2002 f250 5.4l. I was hunting the other day and dropped my truck in a deep mud hole. I thought not a problem put it in 4x4 and go on. Turned 4x4 switch to 4wh high and had nothing light didn't come on, tryed 4wh low and still nothing. Checked all my fuses found one bad ( # 38 ) diagram reads this is for towing lights. Is there any thing i can check befor getting into my transfer case and if not what should i look for when i get into it? I don't think this has any thing to do with my problem but my brake switch whitch lets me shift out of park is bad starting truck in N for last month, and when i replaced fuse #38 my parking light stay on. Need help be for the big snow hits
Thanks Dave
Thanks Dave
Post Fiend
Joined: May 2006
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From: Central Florida
I take it you have ESOF, so I would start with the vacuum lines. I inspected my lines while I had the tires off today and one was split, not enough to cause failure, but it would have soon.
Post Fiend
Joined: May 2006
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From: Central Florida
When you pull one off, you should hear a very slight hiss as the vacuum is released.
Then if those are good, it's time to look towards the x-case. Me being me, I would climb under it and try to listen for the motor moving. It might require someone behind the wheel switching back and forth while bumping the steering wheel r/l. If I heard it, then I would jack up the front end and see if it's making full engagement, if I didn't, then I would start checking for power in the harness. Oh yeah, Welcome to the fold.
Then if those are good, it's time to look towards the x-case. Me being me, I would climb under it and try to listen for the motor moving. It might require someone behind the wheel switching back and forth while bumping the steering wheel r/l. If I heard it, then I would jack up the front end and see if it's making full engagement, if I didn't, then I would start checking for power in the harness. Oh yeah, Welcome to the fold.
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Joined: Dec 2004
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From: Hudsonville, MI
I got lucky with mine recently, had the same problem.
I have not been very good about locking things in over the summer and my lockouts were not moveable by hand. I set aside a Saturday afternoon and planned on tearing them down for repairs. After finding one would almost move by hand as I started taking it apart, I grabbed a pliers and a can of silicone and sprayed around it, worked it, sprayed and worked it, etc...
After I got it to move easily I went to the other side and did the same. After getting both of them to work easy by hand again it autolocks again like it's supposed to and goes into low again. Fortunetly I got this figured out before we got the big snow.
I have not been very good about locking things in over the summer and my lockouts were not moveable by hand. I set aside a Saturday afternoon and planned on tearing them down for repairs. After finding one would almost move by hand as I started taking it apart, I grabbed a pliers and a can of silicone and sprayed around it, worked it, sprayed and worked it, etc...
After I got it to move easily I went to the other side and did the same. After getting both of them to work easy by hand again it autolocks again like it's supposed to and goes into low again. Fortunetly I got this figured out before we got the big snow.
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thanks ReAX i will check this in the morning, had to do christmas shopping today so didn't get a chance to look at it.
redford when i was in the mud hole after switching to 4h rolled the window down seen the front was not turning had a buddy look at the other side was not turning. I tryed locking my hubs in to see if this would help still had no 4x4.
thanks
dave
redford when i was in the mud hole after switching to 4h rolled the window down seen the front was not turning had a buddy look at the other side was not turning. I tryed locking my hubs in to see if this would help still had no 4x4.
thanks
dave
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If the 4x4 dash light usually works and is not on, I would start by checking to see if the motor on the transfer case is working. Are you getting power to the transfer case, if not then work your way back checking the relays under the hood, fuses, bad connections. With the locking hubs you have to be moving a little bit to engage them.
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reading your problem, i assume you have an electronic 4wd shift switch on the dashboard, much like my 1999 f250 fwd had. i had a similar mishap in a mud hole, stuck with no 4wd, mine did light up but no 4wd, as luck would have it it was the electric shift motor on the transfer case, and my truck was realatively new at the time. my point, if this is the electronic shift on the fly such as mine was, i would go back to basics, checking the wiring, and especially something as simple as a good ground! put a test light on the wires going into the shift motor and have someone cycle the switch, see if you are getting power to that point, and of course check the ground! might be as simple as that, at most it could be a bad electric shift motor, your statement that it didnt light up on the dash as in 4wd prompts me to think its a wiring problem!
Posting Guru
Joined: Jan 2003
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From: Eastern CT.
Everytime I read one of these,,,"4x4 Not Working" threads,,,,I really appreciate the Fact that FORD gives us a choice,,,,,the Easy(Lazy) seemingly,,,always troubled ESOF 4x4 system,,,which will let it's owners down at some point in "Ownership" of the truck,,,But Has also quietly retained the one 4x4 system that works all the time,,,and can be ordered on any SuperDuty truck,,,,,,the tried and true "Manual Hubs and Transfere Case" 4x4 system,,,,Just like the one in my 06' F-350 !!
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thanks
Dave