Slight whining noise in 4wd

Is it normal to hear kinda medium-pitched (not low, not high) whine coming from front when in 4wd mode? Not really loud. I just had oil changed in front axle, and methinks the noise wasn't there before (or it was not as
loud, and lower-pitched).
Peter
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Oops, forgot to mention that this is Trooper 98.
Peter
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my 95 LXW 4X4 passport/rodeo does the same thing since ive had it when engaged in 4WD,just make sure that if you ever hear a strange noise when turning(rear differental) in the warmer weather, that would mean the dealer didnt put the additive (dont ask me why ) but when i went back to them and they added it ,the noise went away for good since then( 2 summers ago) with its 122,000 miles ,also too bad the maual /visor says when in 4WD you cant go over 50 mph,good luck
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I can hear the front axle turning in 4WD on my 98, Peter, and I also just changed out the lube, but I heard it before, and it doesn't sound bad at all. You're probably hearing some transfer case noise or simply gear noise from the front differential or the universal joints - nothing to be worried about. At least, I'm not going to worry about it. Run the dogsnot out of it. Just don't run 4WD on dry pavement. r/ Steve

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I thought so. Just was suspicious because I changed the oil and it got a bit louder, or so it seemed

I never do... snow & ice only ;)
Peter
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Does the 98 have the TOD system? I thought it was safe to run on dry pavement? (though you probably shouldn't for very far?)
Wesley

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TOD is an option I do not have. I've got LSD, though ;)
And yes, TOD should be safe to run on dry pavement AFAIK
Peter
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wrote:

According to the manual for 1998 Trooper, it is fine to run TOD as long as you aren't going over 55mph for sustained periods.
- -- Curtis Newton snipped-for-privacy@remove-me.akaMail.com http://surf.to/cnewton <delete remove-me. to respond to email> ICQ: 4899169
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I'm not completely sold on the TOD, but the push-button 4wd part sure is nice... :-) And that limited slip differential definitely is a wonderful thing!
Wesley

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