4x4 not working right - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 04-09-2002, 03:57 PM
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4x4 not working right

I have a 90 YJ and when I put it in 4x4 it seems to take a long time to kick in. sometime's it wont for a sometime. I checked all the vacum lines didn't see any problems there. I'm pretty sure I looked the entire system over between me and my friend, and we couldn't figure it out. Also I find that if I try to spin the tires when I put it in 4x4 it kicks in faster, if at all.

Anyone have any idea's

90' Jeep YJ
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post #2 of (permalink) Old 04-09-2002, 04:11 PM
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Re: 4x4 not working right

Does your '90 have a vacuum disconnect system on the front D30? Something with it could be taking a crap shoot. Always a good excuse to plop in the cable operated one, or hell, just through in a D44 up front
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post #3 of (permalink) Old 04-09-2002, 04:14 PM
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Re: 4x4 not working right

I have some ideas.

1. The shift collar is binding
2. Splines on the outer axleshaft are munged
3. Pinhole leak in a vacuum line, or engine not pulling enough vacuum
4. Foreign matter (or shrapnel) in shifter housing
5. It's time for a cable operated shifter
6. Leaky shift motor diaphragm
7. Leak at transfer case

If all else fails, repeat step #5 until you call it an upgrade! hehehe
good luck!

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