viscous coupling bad?

[tuckers89GW]

Can anyone tell me what to look for when my viscous coupling goes bad on the NP229? I am trying to diagnois a problem I'm having with t-case.

------------------
Mike
<UL TYPE=SQUARE>
<LI>'89 GW
completely stock
<LI>'99 Windstar
under WARRANTY
<LI>see JEEP (http://tuckermj.tripod.com/jeep/)[/list]

[Baker]

In order of increasing severity (starting at pretty bad):

1.) Little/no movement in 4wd.
2.) whirring/clanging noises accompanying 1.)
3.) A noise that sounds like bits of aluminum being ground to dust between steel gears (which is exactly the source of the sound--AMHIK).
4.) 6 pints of Dexron on the ground under the 'case.
5.) No movement at all in any gear/mode.

[Baker]

BTW, if it simply goes bad, you'll probably only get #1. My first 229's VC exploded.


My second 229 jumped out of gear while crossing a highway. (see sig)

------------------
Baker
Buy a J-Truck shirt! (http://www.cafepress.com/fsj/)
'84 Grand Wag, fixer-upper. (http://www.3weasel.20m.com/jeepwreck.html) Will sell or trade, unless I find the money to fix it.
'71 4 door Chevy Nova (http://www.3weasel.20m.com/nova/) Will trade for any of a long list of cars, or sell for the right price.
Email me for details.

[tuckers89GW]

Thanks Baker, I used it the other day and it was very slow going it and I couldn't get it out of 4wd. When I got home I lifted the rear wheels off the ground and they spun until everything was loose. Then it would come right out. I wonder if it didn't engage properly. Slow vacumn shift motor.(hopefully)
I don't have any of the items you listed thankfully.

OUCH ON YOUR WAG!!

------------------
Mike
<UL TYPE=SQUARE>
<LI>'89 GW
completely stock
<LI>'99 Windstar
under WARRANTY
<LI>see JEEP (http://tuckermj.tripod.com/jeep/)[/list]

[This message has been edited by tuckers89GW (edited April 10, 2001).]