Strange rumble

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Oct 18, 2020 | 07:51 AM

Warland Mark Hersey

Thread Starter

Newbie

Joined: Oct 2020

Posts: 2

Likes: 0

Model: Cherokee (XJ)

Strange rumble

99xj. I have a strange rumble and soun coming from under my drivers seat when I hit a bump. I think it's the transmission mount. Not sure what to do next

Oct 18, 2020 | 02:02 PM

BlueRidgeMark

CF Veteran

Joined: May 2012

Posts: 7,965

Likes: 964

From: Lost in the wilds of Virginia

Year: 1998 Classic (I'll get it running soon....) and 02 Grand

Model: Cherokee (XJ)

Engine: 4.0

Put the car up on jackstands and get under there with a flashlight. Put your eyeballs on it. If you can take a jack under there and use it to jack up the trans a bit, that's even better.

Oct 18, 2020 | 05:45 PM

lawsoncl

CF Veteran

Joined: Dec 2017

Posts: 4,365

Likes: 1,215

Year: 1989

Model: Comanche (MJ)

Engine: 4.0

Check if the exhaust is hitting the crossmember next to the trans. The usual cause is a bad transmission or motor mounts. On a 20-year old vehicle, it's not surprising to have the rubber parts start crumbing. Grab the trans and see if you can move it around.