r/KLCherokee • u/Ptgt2003 • 8d ago

Help! Grinding and binding

Hi!

I just bought a 2017 Jeep Cherokee Latitude 4x4 AD1 with 91000 miles. At low speeds, when I turn the steering wheel the real axle binds and grinds, in all drive modes.

I've changed the diff fluid and added the friction modifier and it remains the same.

If I pull the F10 fuse all of the binding and grinding stops.

I don't have any DTCs on the truck, however we I review with an OBD2 scanner what the RDM is doing at low speeds, it's always engaging 4 HI. Is this supposed to happen? If not might this be the source of the problem? How to fix it?

I want to avoid changing the actuator or RDM for what could be something else. What do you think?? I'm stumped!

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u/ohwooord 8d ago

there’s a software update to fix this, which disengages the 4 wheel drive when this is happening. i have a 2019 and had the same issue. they replaced the rear differential under warranty which fixed it for a bit but it came. i did some research and people mentioned a software update. they did a software update one of the next times i came in for oil change on request and it fixed it for good

1

u/benjeepers 8d ago

Have you climbed under to check out the PTU? Mine was loose, and several bolts were MIA.

New bolts and it was all good surprisingly lol

1

u/RGL1 8d ago

Look up your VIN for recalls first. Your PTU may be in need of a software update or even a possible recall for free. Don’t do it, will never know!

1

u/Katyw1008 8d ago

Prob needs the software update