So when I'm in nuetral, and sometimes in gear as well, when i hit around 2500 rpms my jeep makes a high pitched screech and I'm trying to pin point the problem and how to fix it. I have a 98 Cherokee 4.0 and my best bet is it's a belt of some sorts. Any help would be greatly appreciated!

 

Check the tension on fan belt.

 

as said..its the belt. Because our motors don't have an auto-tensioner this is a common problem. I replaced my belt and manually backed off the tensioner...no mo squeaky!!

 

That was just the problem, it's all fixed now. Thanks for the help!

 

is it possible to "broom stick" the noise? Meaning to listen to a stick with the other end placed on the possible noise maker. I did mine some time ago, and replaced the distributor to get rid of the noise. I replaced my daughter's distributor also to get rid of a squeak. I think the bushings in the distributor dry out and make noise, then let the center shaft wobble, which will throw a cam positioning sensor code on OBD II engines. Good Luck, hope this helps