What would make the front end of a Jeep Cherokee make a whinding noise when in four wheel drive?

Answer 1

This sounds like a common problem, but it would be nice to have more info on the Jeep. You must have the 5.2 engine. It comes with a Model 249 Transfer case. This T-Case has what is called a Viscus Coupler in it that is supposed to give approx 60% power to the rear wheels, and 40% to the front. Then change as needed. The Viscus Coupler is known to be a problem. If you have this setup then I would be willing to bet that when you make a sharp turn you are also getting alot of skipping with the tires, and possibly when it is warmed up you turn sharply into a parking space at a store, shut it off, and just sit in the car for about 5-10 mins, you feel bumping from under the car. All of this is common with a Viscus Coupler going bad. They are not cheap to fix at a shop. It can cause your front CV's / Axle to go bad very quickly. Along with other things. If this is not the problem, and it is coming from the rear end, then you might have a limited slip inside the rear end. IT could be going bad and making a grinding noise. I hope this helps you out in finding the problem.

Answer 2

Your question almost produces more questions than I could even start to answer. Like many questions it would be good to know the year, model, 4WD system type etc etc etc.

But, lets start basic.

You have all the normal front end steering components up there plus you have CV (constant velocity) joints, a front differential, and you have suspension components. All of them can cause a knocking sound if there's a problem. You mention that it's when you're turning so it may be possible to rule out some suspension parts such as your shocks.

Without further info I would highly recommend that you take this to a trusted mechanic for a look-see/estimate which shouldn't cost you anything. They can test drive the vehicle and with your input perhaps reproduce the sound and give you some further options. I REALLY would get this looked at because some possible factors would result in total loss of control of your vehicle if they arent addressed.

Sorry that I can't be of further help....Good luck to you !!!

Answer 3

Usually your CV-Joint. (Contant Velocity Joint).

It also could be your automatic hub, but odds are it's the CV Joint.

It may need the stabilizing bar rubber bushings.

Answer 4

The front axle could need fluid or rebuilt or you are mistaking transfer case noice for front end noice. You should check the fluid in both and change and orb top off if needed

Answer 5

Could be alot of things. Shocks, Springs, Hubs...as i said, it could be alot of things.