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Pontiac G8 Steering Knock
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jzpiano
New User
May 29, 2014, 8:27 AM
Post #1 of 7
(3742 views)
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Pontiac G8 Steering Knock
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Need help with a 2009 Pontiac G8 GT (6.0L) that currently has 23k on it. I'm getting a knocking coming from the car during certain points when turning the steering wheel. I took a video while turning the steering wheel back and forth about 10-15 degrees. Seemed like the noise was coming from the steering rack/column so I have removed a few components to get a good video of it. If I go lock to lock it will make the noise as well, but only at certain points. Any help would be appreciated.
http://youtu.be/U1mVNtmWy4Q
(This post was edited by jzpiano on May 29, 2014, 8:30 AM)
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GC
User
May 29, 2014, 3:28 PM
Post #2 of 7
(3713 views)
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Re: Pontiac G8 Steering Knock
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Have you verified that the struts are not binding? Check any joints on the steering shaft for play. Feel the different components while a helper makes it clunk and see which you can feel a clunk in. Sorry dont have an easy answer.
____________________________________________________
Willing to help, willing to learn... Rob
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jzpiano
New User
May 29, 2014, 5:29 PM
Post #3 of 7
(3708 views)
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Re: Pontiac G8 Steering Knock
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Strut mounts on this car are a known problem and were installed with polyurethane bushings for the entire car less than 2k miles ago. About 1k miles ago the struts were blown and had to be replaced and a set of coilovers was installed. I did try and feel around to see if I could "feel" the clunking. Thought it was coming from the steering rack which I pulled out of the car today. Everything there looks good.
Could it just be bad fluid?
(This post was edited by jzpiano on May 29, 2014, 5:30 PM)
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Discretesignals
Ultimate Carjunky
/ Moderator
May 30, 2014, 6:05 AM
Post #4 of 7
(3694 views)
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Re: Pontiac G8 Steering Knock
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Never heard of power steering fluid causing.
Before you had removed the rack, you could have disconnected the tie rods from the knuckles to eliminate struts problems. If the noise was still there after disconnecting the tie rods, then you could have disconnected the steering coupler and then rotated the steering rack pinion shaft by hand to see if the noise is definitely inside the rack or not.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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jzpiano
New User
May 30, 2014, 8:09 AM
Post #5 of 7
(3683 views)
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Re: Pontiac G8 Steering Knock
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When I made the video the tie rods were off the car so that should eliminate that. Now that I have the rack off I've moved things by hand and everything feels smooth and I'm not getting any noise. I'm honestly stumped....
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Discretesignals
Ultimate Carjunky
/ Moderator
May 30, 2014, 12:23 PM
Post #6 of 7
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Re: Pontiac G8 Steering Knock
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Either you can install another rack and see if that was the problem or put the old one back in and start from scratch. If you decide you want to install another rack, you could take the old one apart to see if there is anything wrong with the pinion shaft gear or rack gear.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Double J
Veteran
/ Moderator
Jun 2, 2014, 11:39 AM
Post #7 of 7
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Re: Pontiac G8 Steering Knock
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There is a TSB out for this concern
Google TSB # 09-09-41-001
#09-09-41-001: Knock Noise from Steering Wheel While Turning (Apply Flocked Tape to Steering Wheel Inflatable Restraint Module) - (Mar 10, 2009)
Subject: Knock Noise from Steering Wheel While Turning (Apply Flocked Tape to Steering Wheel Inflatable Restraint Module)
Models: 2008-2009 Pontiac G8
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Condition
Some customers may comment about a knock noise coming from the steering wheel or the steering column when making turning maneuvers 90 degrees in either direction.
Cause
This condition may be caused by the steering wheel inflatable restraint module sliding from side to side, resulting in the knock noise. Decreasing the lateral clearance of the module locating pins will stop the knock.
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