Clunking sound

Sounds like this vehicle may have had some suspension or accident damage. It needs to be put up on a lift, engine running while someone turns the steering wheel back and forth, a second technician under the vehicle inspecting for where the interference exists when the clunking happens. I don't recommend driving this vehicle.

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Steering shaft clunk fix in about 5 min - GMC Forums

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Dec 2, 2010 - Steering shaft clunk fix in about 5 min GMC Sierra Forum. ... Sounds like the infamous "steering clunk" issue? ... An off center clock spring can be damaged when turning the steering wheel. If so the ... 2003-2006 HUMMER H2

Why is There Noise When Turning my Steering Wheel BlueDevil Products
http://www.gobluedevil.com/blog/why-is-their-noise-when-turning-my-steering-wheel/

check for loose steering box / rack. Check all steering ball joints and suspension joints. have a steering specialist shop check it out as steering problems border on safety

sounds like the gear box or sterring rack went out have some one move the wheel look see what is moving and wha tis not

this might help:
Here is the Technical Service Bulletin that maybe of help, worth looking into but can't guarantee that it would fix your problem Steering - Steering Column Clunking When Turning TECHNICAL Bulletin No.: 01-02-32-001P Date: November 25, 2009 Subject: Clunk Felt/Noise Heard From Steering Column, Steering Gear and/or Front Of Vehicle During Turning Maneuver and/or Steering Wheel Rotation (Replace Intermediate Shaft As Directed) Models: 2001-2004 Buick Regal 2005-2008 Buick Allure (Canada Only), LaCrosse 2000-2008 Chevrolet Impala 2000-2007 Chevrolet Monte Carlo 1998-2002 Oldsmobile Intrigue 2004-2007 Pontiac Grand Prix Supercede: This bulletin is being revised to add the 2008 Buick LaCrosse/Allure. Please discard Corporate Bulletin Number 01-02-32-001O (Section 02 - Steering). Condition Some customers may comment on a clunk type noise coming from the front of the vehicle while driving during a turning maneuver.
1. Locate a large area (parking lot) where the vehicle can be turned in a tight circle. 2. Turn the steering wheel to the right and/or left all the way to the steering lock, then off the steering lock a 1/4 turn. 3. Drive the vehicle approximately 5 km/h (3 mph) in a circle, preferably over rough pavement or seams on the road surface. 4. Drive the vehicle straight ahead at idle speed while applying and releasing the brake pedal. Listen/feel the steering wheel for the clunk/noise condition. 5. If a clunk is felt in the steering wheel, the MOST likely cause is the I-shaft - not the steering gear. Continue with the correction. Correction DO THIS - Replace the intermediate shaft DON'T DO THIS - DO NOT lube the intermediate shaft Replace the existing intermediate shaft

possible but more likely the wish bone
bushes

Hi!

If the clunking sound is heard when the steering wheel is turned regardless of if the car is standing still or moving, then the bearing on top of the spring is stuck or damaged. A good way to find out what's making a noise is to put a screwdriver to it and place your ear to the screwdriver. In this case it will probably even suffice to just put a finger on the spring and you'll feel the clunks as someone turns the steering wheel for you. Just watch your arms and fingers, though!

/Fredrik

What kind of noise, if growling and grinding check and replace wheel bearing. If thumping clunking type noise check steering intermediate shaft, makes noise in both directions.

Sounds like you have a bad CV joint, this will make a clunking or clicking noise like you described only when turning, and varies with vehicle speed.

Have it repaired before it breaks and leaves you stranded, or damages anything else.