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General Forums => The Mess Hall => Topic started by: dirtyjeep95 on March 25, 2008, 08:01:15 PM

Title: vibration and/or grumbling
Post by: dirtyjeep95 on March 25, 2008, 08:01:15 PM

around 50 mph when i partially let off the gas, i get a vibration and/or grumbling, sounds like out of the rear of the jeep, but can't really tell, rear is full and so is the transfer case, anyone have any ideas? it also doesn't make any difference 4wd or 2wd thanks, clint

Title: Re: vibration and/or grumbling
Post by: Bounty Hunter on March 25, 2008, 08:37:45 PM

Sounds like a ujoint in the rear driveshaft going bad.

Title: Re: vibration and/or grumbling
Post by: dirtyjeep95 on March 25, 2008, 08:41:48 PM

u joints are good, what gears would do this?, rumbling between load and coasting

Title: Re: vibration and/or grumbling
Post by: jcsanders79 on March 26, 2008, 07:09:30 AM

I have had exhuast parts to that when they weren't hung properly or damaged?  Gears usually roar but they could vibrate I guess.  Pull the cover if everything is ok then you can move on. 

Title: Re: vibration and/or grumbling
Post by: jrollings on March 28, 2008, 07:01:52 AM

i would def. pull the diff cover:  a rumbling b/w drive and coast sounds like the rear end.

Title: Re: vibration and/or grumbling
Post by: aw12345 on March 31, 2008, 05:05:03 PM

Could be a pinion bearing, carrier bearings and excesive backlash growl under load, pinion bearings will growl when you let of the throttle