Noise when going over bumps

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Sep 6, 2008 | 7:55 AM

#11

stursu

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Joined: Sep 2008

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RE: Noise when going over bumps

Had same problem see my thread STURSU 9-6-2008

Jan 2, 2009 | 11:21 AM

#12

wolfman75

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RE: Noise when going over bumps

I had the same problem with my 2007 uplander and had it fixed with no problem. before spending all the money on needless repairs check the e-brake cable. Mine had come loose and was clunking the undercarriage when i went over a bunp at almost any speed.

Jun 19, 2012 | 8:16 AM

#13

Tim Andrew Polnasek

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Joined: Jun 2012

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i think im having the same problem with my 04 chevy 2500hd when i go ofer bumps the front makes a weird knocking noise and the steering goes out for a second or two. what can i do?

Jul 8, 2014 | 10:34 PM

#14

ljdoughty

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Joined: Jul 2014

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clanking in rear-uplander

whenever I go over a bump, there is a metallic CLANK coming from the back, any ideas?

Jul 9, 2014 | 3:41 PM

#15

Chevrolet Customer Service

Official GM Rep

Joined: Mar 2010

Posts: 4,163

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From: Global Headquarters in Detroit, MI

Hey ljdoughty! The metallic CLANK could be from a number of things. Have you taken your dealership technician on a test drive with you yet? That may help in determining the cause of the clanking noise. Let us know if this is something you plan to do. We're here to offer additional assistance if required.

Amber N.
Chevrolet Customer Care

Quote:

Originally Posted by ljdoughty

whenever I go over a bump, there is a metallic CLANK coming from the back, any ideas?

Jul 11, 2014 | 10:59 PM

#16

sledge.impy

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Joined: Dec 2013

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Quote:

Originally Posted by ljdoughty

whenever I go over a bump, there is a metallic CLANK coming from the back, any ideas?

Yes, check for something loose.. maybe exhaust related.

Jul 12, 2014 | 11:50 AM

#17

in2pro

Administrator

Joined: Apr 2008

Posts: 7,573

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From: Austin, Texas

When strut bearings go out they can make clunking sounds... also sway bar bushings, shock bushings...
Worn out shocks can allow the body to rest too low causing clunking....

May 6, 2016 | 8:31 PM

#18

Cody Collins

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Joined: Mar 2016

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Quote:

Originally Posted by waybro

I have a 2007 2500 HD with 17K miles. About a month ago it started making a Knock orrattling noise andcannot quite make up my mind if it is in the front or rear of the truck.When you drive over a bump it sounds just like someone hitting the under carriage with a hammer. Yep, it just drives me crazy and I've spent more than a couple hours checking for loose boltsor other components under the truck. Cannot feel anything in the steering wheel when it happens.

me too exact same problem I'm having I can't figure it out no loose bolts are no open mind not four-wheel-drive but it makes me just want to strangle somebody

May 7, 2016 | 7:22 PM

#19

Patriot

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Joined: Jan 2012

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Try to look your rear damper rubber attached to your parking brake...i was also crazy looking for the sound when i go to humps and hear this noise...This is what i found when this happened to me. Hope this helps..