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-   -   Accel/Rough Road Knocking in Rear (http://www.jeepgarage.org/f181/accel-rough-road-knocking-in-rear-41791.html)

bsw989 05-06-2012 08:52 PM

Accel/Rough Road Knocking in Rear
 
So I've been working on tracking down a horrendous noise coming from underneath my 05 4.7. It was originally difficult to explain because it was random but it's become more frequent.

The noise is coming from the rear end of the vehicle and is a very distinct knocking sound. It occurs whenever I accelerate at low speeds, it does it ONE time within the first 0-10mph and then doesn't do it again except when going over rough road, regardless of acceleration. It got significantly worse after I put my OME lift on last week? Anybody ever have a similar issue or any idea what could be causing mine? I could probably get a video/sound file if anyone is interested.

Galaxie500 05-08-2012 01:08 AM

Re: Accel/Rough Road Knocking in Rear
 
Quote:

Originally Posted by bsw989 (Post 625742)
So I've been working on tracking down a horrendous noise coming from underneath my 05 4.7. It was originally difficult to explain because it was random but it's become more frequent.

The noise is coming from the rear end of the vehicle and is a very distinct knocking sound. It occurs whenever I accelerate at low speeds, it does it ONE time within the first 0-10mph and then doesn't do it again except when going over rough road, regardless of acceleration. It got significantly worse after I put my OME lift on last week? Anybody ever have a similar issue or any idea what could be causing mine? I could probably get a video/sound file if anyone is interested.

Sounds like you may have a bushing from the suspension going bad. I have a similar sound up front and the dealership said it was my front Dif bushing. They want to much $ to replace it so I'm living with it for now. I have a stock suspension though.

bsw989 05-08-2012 08:17 PM

Re: Accel/Rough Road Knocking in Rear
 
It rained all day here today and the sound went away, so it's gonna be one of those come and go types of things. We'll see if it returns when things dry out.

bpine5195 05-11-2012 03:21 PM

Re: Accel/Rough Road Knocking in Rear
 
I have an 05 laredo and i have the same sound when between 0-10 and slow moving like slowing down at a stop sign I can here it. Don't know what it is though.

yev_martin 05-30-2012 09:43 PM

Re: Accel/Rough Road Knocking in Rear
 
check your stabilizer bar link, mine has the same issue, replace the link and the noise is gone....


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