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Old 10-15-2005, 20:42   #1 (permalink)
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mad 91 Explorer 4WD NOT OPERATIVE

The 4WD in my explorer is not operative. The front axels will not engae in either 4x4 or 4 low mode.

If possible could someone let me knwo how the 4WD is engadged, and what may be wrong with it.

Thank you!!
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Old 10-16-2005, 06:34   #2 (permalink)
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Re: 91 Explorer 4WD NOT OPERATIVE

You should have linkages between your transfer case and the tansmission tunnel. Check to make sure everything is connected. Climb under there and have someone else shift the engagement lever and see what's going on. I'm willing to bet it slipped out of the knuckle.

If it did, you need to figure out WHY it did. Are/Were your motor mounts bad? Is your transmission mount bad? Those things could give enough play that the lever yanks right out of the bracket.

Take a look at it and update us. We'll go from there.
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Old 10-16-2005, 10:03   #3 (permalink)
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Re: 91 Explorer 4WD NOT OPERATIVE

Thanks, i dove under there, there is no shift lever, and honestly im not worried about 4 low, im more concerned aboiut why the front wheels wont lock, im guessing the actuator is bad or maybe the i ahve a vacume leak.

Thanks your help freshmeat
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Old 10-16-2005, 10:07   #4 (permalink)
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Re: 91 Explorer 4WD NOT OPERATIVE

No shift lever? Hmm... I'm not sure exactly how those Explorers engage. Wish I could help you out. I'll talk to some 4x4 friends and see if any have owned an Explorer and if I get anything, I'll post it here.
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Old 10-16-2005, 15:10   #5 (permalink)
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Re: 91 Explorer 4WD NOT OPERATIVE

i found out how its enabled, the transfercase is a elctronic actuator, and the hubs are electronic actuators as well.

I found a supply house that sells all of the parts so i belive i will purchase thme and install them myslef, if you hvae nay further advice it would be much appreciated, thanks!
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Old 10-16-2005, 20:24   #6 (permalink)
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Re: 91 Explorer 4WD NOT OPERATIVE

That's why manual activation is always best. Hehehe.

No real advice- things like that are typically pretty straight-forward. Just be careful- and get some pictures of you out there having fun!!
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