PLZ.Help

[terryt]

I am new to this forum and also new to owning a Jeep.I must say this though,I Love my Jeep.Now I need help very badly,being disabled does not help either.OK,Here goes:
I have a 1994 Jeep GC Limited V8 5.2L and have experienced loud clunking noises coming from both the front and back end while turning. It seems to be worse once the car has been driven at highway speed for 20 min or more. I'm not sure what this noise could possibly be, but I not only hear the noise, but feel the car sort of pull or chug while turning. I personally have never driven one before so do not know what is going on here. I do realize that my Jeep is all time 4x4, but this noise and motion that the car makes when turning does not feel like something that could be normal. I was just wondering if it is, and if it is not a common occurence, then what it could be.

 

[HawkStream]

Probably a bad CV joint.

 

[SteelHeadz]

Check the U-joints.

 

[Bounty__Hunter]

The viscous coupling in the np249 transfer case is going bad, very common for that transfer case. You can have the viscous coupling replaced at a competent transmission shop, or you can upgrade to a np242 or np231 transfer case, lots of web info on those upgrades. Either way you have to get inside the transfer case.

You could also find a replacement transfer case but you would still have the problematic viscous coupling.

 

[terryt]

Thanks a lot guys for the replys gives me some real good ideas to check.
Bounty Hunter if I can ask you,How do you check the coupling?Also I like the:Filling Hell faster than you can say Jihad!!!My brother in law is over there right now fighting Jihad.
Again thanks guys
Terry

 

[KevinF]

The viscous coupling in the np249 transfer case is going bad, very common for that transfer case. You can have the viscous coupling replaced at a competent transmission shop, or you can upgrade to a np242 or np231 transfer case, lots of web info on those upgrades. Either way you have to get inside the transfer case.

You could also find a replacement transfer case but you would still have the problematic viscous coupling.

Well worded...exactly what I was thinking it sounded like.

Terry, if the thing feels like it's "binding-up" when you're turning tightly in a parking lot, but you don't notice it when you're on soft dirt or gravel, then Bounty Hunter has a 99% chance of being correct. And, like he said, these are notorious for going out.

You can purchase another 249 from a wrecking yard as well. The Cash-For-Clunkers program resulted in a LOT of V8 ZJs sitting around which would have that same NP249 t-case. Bear in mind that the '93-'95 models had a different NP249 case than the later '96-'98 models had. The later model gives most of the torque to the rear drive shaft until it senses the front slip, and then locks up 50/50 split. The earlier models have a constant 50/50-ish split until one wheel slips, and then it sends the majority of the torque to the slipping wheel, which doesn't help when you're offroad searching for traction. If you ONLY drive on the streets, probably the earlier model is better for you. If you drive FREQUENTLY on tough trails, I'd recommend the later model.

There is a whole bunch of info on our website that customers have written up if you're interested in doing it yourself:
Death Wobble Tech - Technical Articles for Modifications to Jeep Cherokees, Wranglers, and Grand Cherokees

Great info is also available at NAGCA (N American Grand Cherokee Assoc) and at MallCrawlin HomePage

Hope that helps.

Kevin
KevinsOffroad.com

 

[terryt]

Kevin,
Thank You for the reply and all the great information.I been looking in the junk yards here in Central Illinois,no luck.I hope I did this right,I brought a 242 to upgrade the transfer case so no more VC problems.I again thank you Kevin.
Terry