4wd problems

[95xjsport]

In 2wd my jeep is fine but when I put it 4wd on snow it is ok but once I hit pavement like where there are spots w/o snow on the road the jeep kinda pulls, it seems pretty random, but, I am all over the road... It it normal?
I have no idea where to start it is a 95, 158K, 4.0 I-6, command trac 4wd

[altenburgpj]

Unless you have a blue or green light on the dash that says "Full Time" you can not drive on any pavement. You must stay on slippery stuff like mud gravel, and snow.

Check the sticker on the back of the drivers sun visor.

[95xjsport]

ya, I know. I don;t have full time. The garage told me that the bearings are lose needing replacement and are binding up the U-joints which also need to be replaced... This dosn't make n e sense to me... a respected mechanic who is friends of my parents said he never heard of such a thing... has n e one else??

[altenburgpj]

Originally Posted by 95xjsport

ya, I know. I don;t have full time. The garage told me that the bearings are lose needing replacement and are binding up the U-joints which also need to be replaced... This dosn't make n e sense to me... a respected mechanic who is friends of my parents said he never heard of such a thing... has n e one else??

This is my responce to a similar post in another Jeep forum.

Yes, even wet pavement is not slippery enough to use "Part Time" In Part time the front wheels are driven as a pair, and so are the rears. If there is any tiny diference in their speed due to tire size or air pressure in tires, or making even a gentle turn, the wheel will start to fight each other. Since each tire has good traction, the fighting will cause the vehicle to buck and turn randomly left and right all by itself. Even at 1 mile per hour, this is scary, and you might brake something.

I suspect that there is nothing wrong with your Jeep

Enjoy

[95xjsport]

ok thanks

[cmacartney]

Originally Posted by altenburgpj

This is my responce to a similar post in another Jeep forum.

Yes, even wet pavement is not slippery enough to use "Part Time" In Part time the front wheels are driven as a pair, and so are the rears. If there is any tiny diference in their speed due to tire size or air pressure in tires, or making even a gentle turn, the wheel will start to fight each other. Since each tire has good traction, the fighting will cause the vehicle to buck and turn randomly left and right all by itself. Even at 1 mile per hour, this is scary, and you might brake something.

I suspect that there is nothing wrong with your Jeep

Enjoy

I disagree. I use my 4 wheel drive on wet pavement all the time for the extra traction because i will slide out very easily. The Jeep manual says dont use it on dry pavement, but its OK on wet pavement and gravel and snow. Since I use it all the time, I can tell you that something is wrong because my jeep drives fine on wet pavement in 4 wheel drive. no pulling. If the tires air pressure was low on one side, it would pull even in 2WD. I would get it checked.

[altenburgpj]

Originally Posted by cmacartney

I disagree. I use my 4 wheel drive on wet pavement all the time for the extra traction because i will slide out very easily. The Jeep manual says dont use it on dry pavement, but its OK on wet pavement and gravel and snow. Since I use it all the time, I can tell you that something is wrong because my jeep drives fine on wet pavement in 4 wheel drive. no pulling. If the tires air pressure was low on one side, it would pull even in 2WD. I would get it checked.

Are you sure you are in "Part Time" 4WD not "Full Time" 4WD. Because I have driven my Jeep, a GMC Jimmy and a Ford explorer, and all of them had sufficient traction on wet pavement in their "Part Time" positions to drive badly. To me wet pavement is what is left over after a rain, not sheets of water like you might get during a heavy rain.

By the way. Just knowing that the tires might be fighting each other implies that they are not working together to get me the best traction, and that is what "Full Time" and "AWD" like in a Grand Cherokee is all about.

[95xjsport]

now that I think of it, my mom had a 94 grand chrokee and it didn't do what mine does... I know for a fact though that my front bearing are shot, I can hear them grind. I just don't have the money to have them replaced n e time soon