Ford Super Duty (1999-2016) :: No 4WD Light When Turn The Key On
Aug 20, 2013
I am having some problems with my 4WD, it's not working. When I turn the key on, I do not see the 4WD light. I have locked the hubs with no change. I noticed that my switch was not illuminated either, so I started there. I took the switch out, cleaned it up a bit and reinstalled it. Now it's illuminated but still no 4WD. I have swapped the two relays and still nothing. I have checked all the fuses under the dash and they were all good.
I don't believe the switch is the problem(they seem to be pretty simple and it doesn't look like there's much to go wrong. Is there a better way to test the switch other than just seeing the illumination light on? I plan on testing the transfer case shift motor tomorrow but I don't believe that is the problem since I'm not even getting the dash 4x4 light.
My other thought is replace the GEM but I was trying to rule out a few of the cheaper alternatives first.
I almost forgot to mention, approximately 7 months ago, my buddy and I were going coyote hunting. Being the genius he is, he didn't unload his rifle while we were in the truck and at some point, something happened and he touched off a round.
The shot was a well placed point blank shot and went right through a large group of wires on the passenger side trim panel under the glove box.
Initially, he bagged himself a trophy size Superduty but after some emergency surgery and a bit of soldering, everything has been fine.
I haven't used the 4WD after this incident but I can't say for certain this caused it because I haven't checked until now. Do you think this caused it? Is there a hidden/residual problem that I missed?
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So I took everything back apart, cleaned the grease off the sensor with a paper towel and put everything back together and the light still comes back on. I'm not sure exactly what grease I used, same heavy duty grease I use on my tractor. What's my next step? Should I keep taking it apart and cleaning it? Will that fix it?
BTW the truck is a 2001 7.3 with 280k with some mild mods....
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My '99 250 SD - Turn on the key and the brake indicator light comes on.
Start it and the indicator turns off, the E-brake is still on but no light.
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I have a 2010 F250 super duty. I use it for work so I am not sure what happened to it as others have driven it, but here is the issue. When i start it up in 2wd, the 4x4 Low light flashes continually. If I turn the switch to 4x4 high, the 4x4 high light flashes continually. if i turn it to 4x4 low, that light flashes continually. I have read the forums but haven't been able to find the problem/diagnosis for this.
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Having a problem with my truck and I'm stuck. About 9 months ago my 4wd stopped working. Turn the switch and no light or noise. I took a look at fuses and everything was good there. I let it go but now I need 4wd. Today I checked every fuse and all of them were good. I moved to the relays checked them and they were good but for the heck of it replaced them. Checked for power at the pins. The one that needed power had power. Next I went to the switch had 12 volts there. Pulled switch and test with a multimeter and ohms were good. Went. Down to the motor and tested for power there not power to the motor. Is there anything else I'm missing Esof not working. 2002 f350 7.3 auto....
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I can't find a blown fuse for the turn signals or brake lights (not really sure which fuse box it's in since the manual doesn't tell me what fuse is what)
I however did find what I'm guessing are the flashers behind the radio. What might have went wrong where before I start dumping money in to flashers and relays.
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Here are a couple of things I have tried to narrow down the culprit.
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2) Brake light circuit operates fine by itself.
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I just got a 2000 F350 cc drw 7.3l.
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