whirring noise
 

I have a 1997 Cherokee Sport auto 2wd. She has 225,XXX miles on her and runs like a charm. I've heard these Jeeps last well over 300,000. Here's the problem -> When driving at low speeds I hear a whirring noise from under the floorboard, like the trans or differential I'm guessing. It goes away when she shifts into 3rd gear and I don't hear it again until I slow down to 10-15mph. It doesn't happen in neutral, but it does it in reverse. When I put it in third gear I hear it though until I accelerate past 30mph. I am puzzled at which shop to take it to. Please help!! I really don't want to sell her.

also the day it started happening I added way too much lucas fuel injector cleaner. and the car shifts smoothly with no hesitation just that noise. Thanks!!

sounds like your low/reverse gears are worn in the tranny. could still run for a lot more miles.

do you think if i change the fluid and filter that will help or am i wasting my time? i am scared to drive it with that sound, b/c i am afraid i will make it worse. at 225,xxx miles it seems silly to put a tranny in but i heard these jeeps last to 350,xxx sometimes. don't know what to do!?! thanks for replying!

It definately wont hurt to change fluid. as far as it getting worse just monitor rhe noise and see if it seems to get worse. Try putting some lucas oil non solvent transmission fix available at Autozone and see if it helps any. If the vehicle is in good condition i would not hesitate to replace the trans. If the motor has good oil pressure and does not burn any oil it will last you. Mine has 201000 miles on it and i offroad it as much as i drive it around town and lt has never let me down, Whatever i ask it to do it does with no prob and i have low oil pressure and have had it for at least 30000 miles.